Пример #1
0
def boot_from_args(arg):
    arg.username = arg.username or Image.guess_username(arg.image)
    is_name_provided = arg.name is not None

    arg.user = Default.user

    for index in range(0, arg.count):
        vm_details = dotdict({
            "cloud": arg.cloud,
            "name": Vm.get_vm_name(arg.name, index),
            "image": arg.image,
            "flavor": arg.flavor,
            "key": arg.key,
            "secgroup": arg.secgroup,
            "group": arg.group,
            "username": arg.username,
            "user": arg.user
        })
        # correct the username
        vm_details.username = Image.guess_username_from_category(
            vm_details.cloud,
            vm_details.image,
            username=arg.username)
        try:

            if arg.dryrun:
                print(Printer.attribute(vm_details, output=arg.format))
                msg = "dryrun info. OK."
                Console.ok(msg)
            else:
                vm_id = Vm.boot(**vm_details)

                if vm_id is None:
                    msg = "info. failed."
                    Console.error(msg, traceflag=False)
                    return ""

                # set name and counter in defaults
                Default.set_vm(value=vm_details.name)
                if is_name_provided is False:
                    Default.incr_counter("name")

                # Add to group
                if vm_id is not None:
                    Group.add(name=vm_details.group,
                              species="vm",
                              member=vm_details.name,
                              category=vm_details.cloud)

                msg = "info. OK."
                Console.ok(msg)

        except Exception as e:
            Console.error("Problem booting instance {name}".format(**vm_details), traceflag=False)
Пример #2
0
def boot_from_args(arg):
    arg.username = arg.username or Image.guess_username(arg.image)
    is_name_provided = arg.name is not None

    arg.user = Default.user

    for index in range(0, arg.count):
        vm_details = dotdict({
            "cloud": arg.cloud,
            "name": Vm.generate_vm_name(arg.name, index),
            "image": arg.image,
            "flavor": arg.flavor,
            "key": arg.key,
            "secgroup": arg.secgroup,
            "group": arg.group,
            "username": arg.username,
            "user": arg.user
        })
        # correct the username
        vm_details.username = Image.guess_username_from_category(
            vm_details.cloud, vm_details.image, username=arg.username)
        try:

            if arg.dryrun:
                print(Printer.attribute(vm_details, output=arg.format))
                msg = "dryrun info. OK."
                Console.ok(msg)
            else:
                vm_id = Vm.boot(**vm_details)

                if vm_id is None:
                    msg = "info. failed."
                    Console.error(msg, traceflag=False)
                    return ""

                # set name and counter in defaults
                Default.set_vm(value=vm_details.name)
                if is_name_provided is False:
                    Default.incr_counter("name")

                # Add to group
                if vm_id is not None:
                    Group.add(name=vm_details.group,
                              species="vm",
                              member=vm_details.name,
                              category=vm_details.cloud)

                msg = "info. OK."
                Console.ok(msg)

        except Exception as e:
            Console.error(
                "Problem booting instance {name}".format(**vm_details),
                traceflag=False)
Пример #3
0
    def do_vm(self, args, arguments):
        """
        ::

            Usage:
                vm default [--cloud=CLOUD][--format=FORMAT]
                vm refresh [all][--cloud=CLOUD]
                vm boot [--name=NAME]
                        [--cloud=CLOUD]
                        [--username=USERNAME]
                        [--image=IMAGE]
                        [--flavor=FLAVOR]
                        [--group=GROUP]
                        [--public]
                        [--secgroup=SECGROUP]
                        [--key=KEY]
                        [--dryrun]
                vm boot [--n=COUNT]
                        [--cloud=CLOUD]
                        [--username=USERNAME]
                        [--image=IMAGE]
                        [--flavor=FLAVOR]
                        [--group=GROUP]
                        [--public]
                        [--secgroup=SECGROUP]
                        [--key=KEY]
                        [--dryrun]
                vm ping [NAME] [N]
                vm console [NAME]
                         [--group=GROUP]
                         [--cloud=CLOUD]
                         [--force]
                vm start [NAMES]
                         [--group=GROUP]
                         [--cloud=CLOUD]
                         [--force]
                vm stop [NAMES]
                        [--group=GROUP]
                        [--cloud=CLOUD]
                        [--force]
                vm terminate [NAMES]
                          [--group=GROUP]
                          [--cloud=CLOUD]
                          [--force]
                vm delete [NAMES]
                          [--group=GROUP]
                          [--cloud=CLOUD]
                          [--keep]
                          [--dryrun]
                vm ip assign [NAMES]
                          [--cloud=CLOUD]
                vm ip show [NAMES]
                           [--group=GROUP]
                           [--cloud=CLOUD]
                           [--format=FORMAT]
                           [--refresh]
                vm ip inventory [NAMES]
                                [--header=HEADER]
                                [--file=FILE]
                vm ssh [NAME] [--username=USER]
                         [--quiet]
                         [--ip=IP]
                         [--cloud=CLOUD]
                         [--key=KEY]
                         [--command=COMMAND]
                vm rename [OLDNAMES] [NEWNAMES] [--force] [--dryrun]
                vm list [NAMES]
                        [--cloud=CLOUDS|--active]
                        [--group=GROUP]
                        [--format=FORMAT]
                        [--refresh]
                vm status [NAMES]
                vm wait [--cloud=CLOUD] [--interval=SECONDS]
                vm info [--cloud=CLOUD]
                        [--format=FORMAT]
                vm check NAME
                vm username USERNAME [NAMES] [--cloud=CLOUD]

            Arguments:
                COMMAND        positional arguments, the commands you want to
                               execute on the server(e.g. ls -a) separated by ';',
                               you will get a return of executing result instead of login to
                               the server, note that type in -- is suggested before
                               you input the commands
                NAME           server name. By default it is set to the name of last vm from database.
                NAMES          server name. By default it is set to the name of last vm from database.
                KEYPAIR_NAME   Name of the openstack keypair to be used to create VM. Note this is
                               not a path to key.
                NEWNAMES       New names of the VM while renaming.
                OLDNAMES       Old names of the VM while renaming.

            Options:
                --username=USERNAME  the username to login into the vm. If not specified it will be guessed
                                     from the image name and the cloud
                --ip=IP          give the public ip of the server
                --cloud=CLOUD    give a cloud to work on, if not given, selected
                                 or default cloud will be used
                --count=COUNT    give the number of servers to start
                --detail         for table print format, a brief version
                                 is used as default, use this flag to print
                                 detailed table
                --flavor=FLAVOR  give the name or id of the flavor
                --group=GROUP          give the group name of server
                --secgroup=SECGROUP    security group name for the server
                --image=IMAGE    give the name or id of the image
                --key=KEY        specify a key to use, input a string which
                                 is the full path to the private key file
                --keypair_name=KEYPAIR_NAME   Name of the openstack keypair to be used to create VM.
                                              Note this is not a path to key.
                --user=USER      give the user name of the server that you want
                                 to use to login
                --name=NAME      give the name of the virtual machine
                --force          rename/ delete vms without user's confirmation
                --command=COMMAND
                                 specify the commands to be executed


            Description:
                commands used to boot, start or delete servers of a cloud

                vm default [options...]
                    Displays default parameters that are set for vm boot either on the
                    default cloud or the specified cloud.

                vm boot [options...]
                    Boots servers on a cloud, user may specify flavor, image .etc, otherwise default values
                    will be used, see how to set default values of a cloud: cloud help

                vm start [options...]
                    Starts a suspended or stopped vm instance.

                vm stop [options...]
                    Stops a vm instance .

                vm delete [options...]
                    Delete servers of a cloud, user may delete a server by its name or id, delete servers
                    of a group or servers of a cloud, give prefix and/or range to find servers by their names.
                    Or user may specify more options to narrow the search

                vm floating_ip_assign [options...]
                    assign a public ip to a VM of a cloud

                vm ip show [options...]
                    show the ips of VMs

                vm ssh [options...]
                    login to a server or execute commands on it

                vm list [options...]
                    same as command "list vm", please refer to it

                vm status [options...]
                    Retrieves status of last VM booted on cloud and displays it.

            Tip:
                give the VM name, but in a hostlist style, which is very
                convenient when you need a range of VMs e.g. sample[1-3]
                => ['sample1', 'sample2', 'sample3']
                sample[1-3,18] => ['sample1', 'sample2', 'sample3', 'sample18']

            Quoting commands:
                cm vm login gvonlasz-004 --command=\"uname -a\"
        """

        """

        # terminate
        #  issues a termination to the cloud, keeps vm in database

        # delete
        #   issues a terminate if not already done
        #      (remember you do not have to go to cloud if state is already terminated)
        #   deletes the vm from database
        #


        # bulk rename

        rename abc[0-1] def[3-4]       renames the abc0,abc1 -> def3,def4

        if arguments["rename"]:
            oldnames = Parameter.expand(arguments["OLDNAME"])
            newnames = Parameter.expand(arguments["NEWNAME"])

            # check if new names ar not already taken
            # to be implemented

            if len(oldnames) == len(newnames):
                for i in range(0, len(oldnames)):
                    oldname = oldnames[i]
                    newname = newnames[i]
                if newname is None or newname == '':
                    print("New node name cannot be empty")
                else:
                    print(Cluster.rename_node(clusterid, oldname, newname))
        """

        cm = CloudmeshDatabase()

        def _print_dict(d, header=None, output='table'):
            return Printer.write(d, order=["id", "name", "status"], output=output, sort_keys=True)

        def _print_dict_ip(d, header=None, output='table'):
            return Printer.write(d, order=["network", "version", "addr"], output=output, sort_keys=True)

        def get_vm_name(name=None, offset=0, fill=3):

            if name is None:
                count = Default.get_counter(name='name') + offset
                prefix = Default.user
                if prefix is None or count is None:
                    Console.error("Prefix and Count could not be retrieved correctly.", traceflag=False)
                    return
                name = prefix + "-" + str(count).zfill(fill)
            return name

        def _refresh_cloud(cloud):
            try:
                msg = "Refresh VMs for cloud {:}.".format(cloud)
                if Vm.refresh(cloud=cloud):
                    Console.ok("{:} OK.".format(msg))
                else:
                    Console.error("{:} failed".format(msg), traceflag=False)
            except Exception as e:
                Console.error("Problem running VM refresh", traceflag=False)

        def _get_vm_names():

            vm_list  = cm.find(kind="vm")

            vms = [vm["name"] for vm in vm_list]

            names = pattern = arguments["NAMES"]
            if pattern is not None:
                if "*" in pattern:
                    names = search(vms, pattern)
                else:
                    names = Parameter.expand(names)

            if names == ['last'] or names is None:
                names == [Default.vm]

            return vm_list, names

        cloud = arguments["--cloud"] or Default.cloud

        config = ConfigDict("cloudmesh.yaml")
        active_clouds = config["cloudmesh"]["active"]

        def _refresh(cloud):
            all = arguments["all"] or None

            if all is None:

                _refresh_cloud(cloud)
            else:
                for cloud in active_clouds:
                    _refresh_cloud(cloud)

        arg = dotdict(arguments)

        arg.cloud = arguments["--cloud"] or Default.cloud
        arg.image = arguments["--image"] or Default.get(name="image", category=arg.cloud)
        arg.flavor = arguments["--flavor"] or Default.get(name="flavor", category=arg.cloud)
        arg.group = arguments["--group"] or Default.group
        arg.secgroup = arguments["--secgroup"] or Default.secgroup
        arg.key = arguments["--key"] or Default.key
        arg.dryrun = arguments["--dryrun"]
        arg.name = arguments["--name"]
        arg.format = arguments["--format"] or 'table'
        arg.refresh = Default.refresh or arguments["--refresh"]
        arg.count = int(arguments["--n"] or 1)
        arg.dryrun = arguments["--dryrun"]
        arg.verbose = not arguments["--quiet"]

        #
        # in many cases use NAMES
        # if arg.NAMES is not None:
        #   arg.names = Parameter.expand(arg.NAMES)   #  gvonlasz[001-002]  gives ["gvonlasz-001", "gvonlasz-002"]
        # else:
        #    arg.names = None
        #

        if arguments["boot"]:

            arg.username = arguments["--username"] or Image.guess_username(arg.image)
            is_name_provided = arg.name is not None

            arg.user = Default.user

            for index in range(0, arg.count):
                vm_details = dotdict({
                    "cloud": arg.cloud,
                    "name": get_vm_name(arg.name, index),
                    "image": arg.image,
                    "flavor": arg.flavor,
                    "key": arg.key,
                    "secgroup": arg.secgroup,
                    "group": arg.group,
                    "username": arg.username,
                    "user": arg.user
                })
                # correct the username
                vm_details.username = Image.guess_username_from_category(
                    vm_details.cloud,
                    vm_details.image,
                    username=arg.username)
                try:

                    if arg.dryrun:
                        print(Printer.attribute(vm_details, output=arg.format))
                        msg = "dryrun info. OK."
                        Console.ok(msg)
                    else:
                        vm_id = Vm.boot(**vm_details)

                        if vm_id is None:
                            msg = "info. failed."
                            Console.error(msg, traceflag=False)
                            return ""

                        # set name and counter in defaults
                        Default.set_vm(value=vm_details.name)
                        if is_name_provided is False:
                            Default.incr_counter("name")

                        # Add to group
                        if vm_id is not None:
                            Group.add(name=vm_details.group,
                                      species="vm",
                                      member=vm_details.name,
                                      category=vm_details.cloud)

                        msg = "info. OK."
                        Console.ok(msg)

                except Exception as e:
                    Console.error("Problem booting instance {name}".format(**vm_details), traceflag=False)

        elif arguments["username"]:

            arg.username = arguments["--username"] or Image.guess_username(arg.image)

            cloud = arg.cloud
            username = arg.USERNAME
            if arg.NAMES is None:
                names = [Default.vm]
            else:
                names = Parameter.expand(arg.NAMES)

            if len(names) == 0:
                return

            for name in names:
                arg.name = name
                Console.ok("Set username for {cloud}:{name} to {USERNAME}".format(**arg))
                Vm.set_login_user(name=name, cloud=cloud, username=username)

        elif arguments["default"]:
            try:
                count = Default.get_counter()
                prefix = Username()

                if prefix is None or count is None:
                    Console.error("Prefix and Count could not be retrieved correctly.", traceflag=False)
                    return

                vm_name = prefix + "-" + str(count).zfill(3)
                arg = {
                    "name": vm_name,
                    "cloud": arguments["--cloud"] or Default.cloud
                }
                for attribute in ["image", "flavor"]:
                    arg[attribute] = Default.get(name=attribute, category=cloud)
                for attribute in ["key", "group", "secgroup"]:
                    arg[attribute] = Default.get(name=attribute, category='general')

                output = arguments["--format"] or "table"
                print(Printer.attribute(arg, output=output))
                msg = "info. OK."
                Console.ok(msg)
                ValueError("default command not implemented properly. Upon "
                           "first install the defaults should be read from yaml.")
            except Exception as e:
                # Error.traceback(e)
                Console.error("Problem listing defaults", traceflag=False)

        elif arguments["ping"]:
            try:
                if arguments["NAME"] is None and arguments["N"] is None:
                    name = arguments["NAME"] or Default.vm
                    n = arguments["N"] or 1
                elif arguments["NAME"].isdigit():
                    n = arguments["NAME"]
                    name = Default.vm
                else:
                    name = arguments["NAME"] or Default.vm
                    n = arguments["N"] or 1

                print("Ping:", name, str(n))

                vm = dotdict(Vm.list(name=name, category=cloud, output="dict")["dict"])

                ip = vm.floating_ip

                result = Shell.ping(host=ip, count=n)
                print(result)

            except Exception as e:
                Console.error(e.message, traceflag=False)

        elif arguments["console"]:
            try:
                name = arguments["NAME"] or Default.vm

                vm = dotdict(Vm.list(name=name, category=cloud, output="dict")["dict"])

                cloud_provider = CloudProvider(cloud).provider
                vm_list = cloud_provider.list_console(vm.uuid)
                print(vm_list)
                msg = "info. OK."
                Console.ok(msg)
            except Exception as e:
                # Error.traceback(e)
                Console.error("Problem retrieving status of the VM", traceflag=False)

        elif arguments["status"]:
            try:
                cloud_provider = CloudProvider(cloud).provider
                vm_list = cloud_provider.list_vm(cloud)

                vms = [vm_list[i]["name"] for i in vm_list ]
                print ("V", vms)

                pattern = arguments["NAMES"]
                if pattern is not None:
                    if "*" in pattern:
                        print ("serach")
                        names  = search(vms, pattern)
                    else:
                        names = Parameter.expand()
                    for i in vm_list:
                        if vm_list[i]["name"] in names:
                            print("{} {}".format(vm_list[i]["status"], vm_list[i]["name"]))
                else:
                    print("{} {}".format(vm_list[0]["status"], vm_list[0]["name"]))
            except Exception as e:
                # Error.traceback(e)
                Console.error("Problem retrieving status of the VM", traceflag=True)
        elif arguments["wait"]:
            interval = arguments["--interval"] or 5
            try:
                cloud_provider = CloudProvider(cloud).provider
                for i in range(1,10):
                    vm_list = cloud_provider.list_vm(cloud)
                    time.sleep(float(1))
                    d = {}
                    for id in vm_list:
                        vm = vm_list[id]
                        d[vm["name"]] = vm["status"]
                    print (d)
                    print("{} {}".format(vm_list[0]["status"], vm_list[0]["name"]))
                    if vm_list[0]["status"] in ['ACTIVE']:
                        return
            except Exception as e:
                # Error.traceback(e)
                Console.error("Problem retrieving status of the VM", traceflag=True)

        elif arguments["info"]:
            try:
                cloud_provider = CloudProvider(cloud).provider
                vms = cloud_provider.list_vm(cloud)
                vm = vms[0]
                output_format = arguments["--format"] or "table"
                print(Printer.attribute(vm, output=output_format))
                msg = "info. OK."
                Console.ok(msg)
            except Exception as e:
                # Error.traceback(e)
                Console.error("Problem retrieving status of the VM", traceflag=False)

        elif arguments["check"]:

            test = {}
            try:

                names = Parameter.expand(arguments["NAME"])
                id = 0
                for name in names:
                    print("Not implemented: {}".format(name))
                    # TODO: check the status of the vms
                    status = "active"
                    # TODO: check if they have a floating ip
                    # TODO: get ip
                    floating_ip = "127.0.0.1"
                    ip = True
                    # ping
                    # TODO: ping the machine with the shell command
                    ping = True
                    # check if one can login and run a command
                    check = False
                    try:
                        r = Shell.execute("uname", "-a")
                        # do a real check
                        check = True
                    except:
                        check = False
                    test[name] = {
                        "id": id,
                        "name": name,
                        "status": status,
                        "ip": ip,
                        "ping": ping,
                        "login": check
                    }
                    id += 1

                pprint(test)

                print(Printer.write(test,
                                    order=["id",
                                           "name",
                                           "status",
                                           "ip",
                                           "ping",
                                           "login"],
                                    output="table",
                                    sort_keys=True))

                msg = "not yet implemented. failed."
                Console.error(msg, traceflag=False)
            except Exception as e:
                # Error.traceback(e)
                Console.error("Problem retrieving status of the VM", traceflag=False)

        elif arguments["start"]:
            try:
                servers = Parameter.expand(arguments["NAMES"])

                # If names not provided, take the last vm from DB.
                if len(servers) == 0:
                    last_vm = Default.vm
                    if last_vm is None:
                        Console.error("No VM records in database. Please run vm refresh.", traceflag=False)
                        return ""
                    name = last_vm["name"]
                    # print(name)
                    servers = list()
                    servers.append(name)

                group = arguments["--group"]
                force = arguments["--force"]

                # if default cloud not set, return error
                if not cloud:
                    Console.error("Default cloud not set.", traceflag=False)
                    return ""

                Vm.start(cloud=cloud, servers=servers)

                msg = "info. OK."
                Console.ok(msg)
            except Exception as e:
                # Error.traceback(e)
                Console.error("Problem starting instances", traceflag=False)

        elif arguments["stop"]:
            try:
                servers = Parameter.expand(arguments["NAMES"])

                # If names not provided, take the last vm from DB.
                if servers is None or len(servers) == 0:
                    last_vm = Default.vm
                    if last_vm is None:
                        Console.error("No VM records in database. Please run vm refresh.", traceflag=False)
                        return ""
                    name = last_vm["name"]
                    # print(name)
                    servers = list()
                    servers.append(name)

                group = arguments["--group"]
                force = arguments["--force"]

                # if default cloud not set, return error
                if not cloud:
                    Console.error("Default cloud not set.", traceflag=False)
                    return ""

                Vm.stop(cloud=cloud, servers=servers)

                msg = "info. OK."
                Console.ok(msg)
            except Exception as e:
                # Error.traceback(e)
                Console.error("Problem stopping instances", traceflag=False)

        elif arguments["refresh"]:

            _refresh(cloud)

        elif arguments["delete"]:

            dryrun = arguments["--dryrun"]
            group = arguments["--group"]
            force = not arguments["--keep"]
            cloud = arguments["--cloud"]
            vms, servers = _get_vm_names()

            if servers in [None, []]:
                Console.error("No vms found.", traceflag=False)
                return ""

            for server in servers:
                if dryrun:
                    Console.ok("Dryrun: delete {}".format(server))
                else:
                   Vm.delete(servers=[server], force=force)

            return ""

        elif arguments["ip"] and arguments["assign"]:
            if arguments["NAMES"] is None:
                names = [Default.vm]
            else:
                names = Parameter.expand(arguments["NAMES"])

            for name in names:

                # ip = Network.get_floatingip(....)

                vm = dotdict(Vm.list(name=name, category=cloud, output="dict")["dict"])

                if vm.floating_ip is None:

                    Console.ok("Assign IP to {}".format(name))

                    try:
                        floating_ip = Network.find_assign_floating_ip(cloudname=cloud,
                                                                      instance_id=name)

                        Vm.refresh(cloud=cloud)

                        if floating_ip is not None:
                            print(
                                "Floating IP assigned to {:} is {:}".format(
                                    name, floating_ip))
                            msg = "info. OK."
                            Console.ok(msg)
                    except Exception as e:

                        Console.error("Problem assigning floating ips.", traceflag=False)

                else:
                    Console.error("VM {} already has a floating ip: {}".format(name, vm.floating_ip), traceflag=False)


        elif arguments["ip"] and arguments["inventory"]:

            vms, names = _get_vm_names()

            if names in [None, []]:
                if str(Default.vm) in ['None', None]:
                    Console.error("The default vm is not set.", traceflag=False)
                    return ""
                else:
                    names = [Default.vm]

            header = arguments["--header"] or "[servers]"
            filename = arguments["--file"] or "inventory.txt"

            try:
                vm_ips = []
                for vm in vms:
                    if  vm["name"] in names:
                        print (vm["name"])
                        vm_ips.append(vm["floating_ip"])

                result = header + "\n"

                result += '\n'.join(vm_ips)
                Console.ok("Creating inventory file: {}".format(filename))

                Console.ok(result)

                with open(filename, 'w') as f:
                    f.write(result)



            except Exception as e:
                Console.error("Problem getting ip addresses for instance", traceflag=True)

        elif arguments["ip"] and arguments["show"]:
            if arguments["NAMES"] is None:
                if str(Default.vm) in ['None', None]:
                    Console.error("The default vm is not set.", traceflag=False)
                    return ""
                else:
                    names = [Default.vm]
            else:
                names = Parameter.expand(arguments["NAMES"])

            group = arguments["--group"]
            output_format = arguments["--format"] or "table"
            refresh = arguments["--refresh"]

            try:

                ips = Ip.list(cloud=arg.cloud, output=output_format, names=names)
                print(ips)
            except Exception as e:
                Console.error("Problem getting ip addresses for instance", traceflag=False)

        elif arguments["ssh"]:

            def _print(msg):
                if arg.verbose:
                    Console.msg(msg)

            chameleon = "chameleon" in ConfigDict(filename="cloudmesh.yaml")["cloudmesh"]["clouds"][arg.cloud][
                "cm_host"]

            if chameleon:
                arg.username = "******"
            elif arg.cloud == "azure":
                arg.username = ConfigDict(filename="cloudmesh.yaml")["cloudmesh"]["clouds"]["azure"]["default"]["username"]
            else:
                if arg.username is None:
                    Console.error("Could not guess the username of the vm", traceflag=False)
                    return
                arg.username = arguments["--username"] or Image.guess_username(arg.image)
            arg.command = arguments["--command"]

            data = dotdict({
                'name': arguments["NAME"] or Default.vm,
                'username': arg.username,
                'cloud': arg.cloud,
                'command': arg.command
            })

            _print("login {cloud}:{username}@{name}".format(**data))

            vm = Vm.get(data.name, category=data.cloud)


            Vm.set_login_user(name=data.name, cloud=data.cloud, username=data.username)

            data.floating_ip = vm.floating_ip
            data.key = arguments["--key"] or Default.key

            _print(Printer.attribute(data))

            '''
            if vm.username is None:
                user_from_db = Vm.get_login_user(vm.name, vm.cloud)

                user_suggest = user_from_db or Default.user
                username = input("Username (Default: {}):".format(user_suggest)) or user_suggest

            Vm.set_login_user(name=data.name, cloud=cloud, username=data.username)
            '''

            ip = arguments["--ip"]
            commands = arguments["--command"]

            ip_addresses = []

            cloud_provider = CloudProvider(cloud).provider
            ip_addr = cloud_provider.get_ips(vm.name)

            ipaddr_dict = Vm.construct_ip_dict(ip_addr, cloud)
            for entry in ipaddr_dict:
                ip_addresses.append(ipaddr_dict[entry]["addr"])

            if len(ip_addresses) > 0:
                if ip is not None:
                    if ip not in ip_addresses:
                        Console.error("IP Address specified does not match with the host.", traceflag=False)
                        return ""
                else:
                    _print("Determining IP Address to use with a ping test.")
                    # This part assumes that the ping is allowed to the machine.
                    for ipadd in ip_addresses:
                        _print("Checking {:}...".format(ipadd))
                        try:
                            # Evading ping test, as ping is not enabled for VMs on Azure cloud
                            # socket.gethostbyaddr(ipadd)
                            # ip will be set if above command is successful.
                            ip = ipadd
                        except socket.herror:
                            _print("Cannot reach {:}.".format(ipadd))

                if ip is None:
                    _print("Unable to connect to the machine")
                    return ""
                else:
                    _print("IP to be used is: {:}".format(ip))

                #
                # TODO: is this correctly implemented
                #
                if not cloud == 'azure':
                    SecGroup.enable_ssh(cloud=cloud)

                if arg.verbose:
                    Console.info("Connecting to Instance at IP:" + format(ip))
                # Constructing the ssh command to connect to the machine.
                sshcommand = "ssh"
                if arg.key is not None:
                    sshcommand += " -i {:}".format(arg.key)
                sshcommand += " -o StrictHostKeyChecking=no"
                sshcommand += " {:}@{:}".format(data.username, ip)
                if commands is not None:
                    sshcommand += " \"{:}\"".format(commands)

                # print(sshcommand)
                os.system(sshcommand)
            else:
                Console.error("No Public IPs found for the instance", traceflag=False)

        elif arguments["list"]:

            # groups = Group.list(output="dict")

            arg = dotdict(arguments)
            arg.names = arguments["NAMES"]

            arg.group = arguments["--group"]
            if arg.group is None:
                arg.group = []
            else:
                arg.group = Parameter.expand(arguments["--group"])

            arg.refresh = arguments["--refresh"] or Default.refresh

            if arg.NAMES is not None:
                arg.names = Parameter.expand(arguments["NAMES"])
            else:
                arg.names = ["all"]

            _format = arguments["--format"] or "table"

            if arguments["--active"]:
                clouds = active_clouds
            else:
                if arguments["--cloud"]:
                    clouds = Parameter.expand(arguments["--cloud"])
                else:
                    clouds = [Default.cloud]

            try:

                d = ConfigDict("cloudmesh.yaml")
                for cloud in clouds:

                    if arg.refresh:
                        _refresh(cloud)

                    Console.ok("Listing VMs on Cloud: {:}".format(cloud))

                    vms = Vm.list(category=cloud, output="raw")

                    # print ("XXX", type(vms), vms)

                    if vms is None:
                        break

                    result = []
                    if "all" in arg.names:
                        if result is None:
                            result = []
                        else:
                            result = vms
                    elif arg.group is not None and len(arg.group) > 0:
                        for vm in vms:
                            if vm["group"] in arg.group:
                                result.append(vm)
                    elif arg.names is not None and len(arg.names) > 0:
                        for vm in vms:
                            if vm["name"] in arg.names:
                                result.append(vm)

                    if len(result) > 0:
                        # print(result)
                        (order, header) = CloudProvider(cloud).get_attributes("vm")
                        print(Printer.write(result,
                                            order=order,
                                            output=_format)
                              )
                    else:
                        Console.error("No data found with requested parameters.", traceflag=False)
            except Exception as e:
                # Error.traceback(e)
                Console.error("Problem listing all instances", traceflag=False)


        elif arguments["rename"]:
            try:
                oldnames = Parameter.expand(arguments["OLDNAMES"])
                newnames = Parameter.expand(arguments["NEWNAMES"])
                force = arguments["--force"]

                if oldnames is None or newnames is None:
                    Console.error("Wrong VMs specified for rename", traceflag=False)
                elif len(oldnames) != len(newnames):
                    Console.error("The number of VMs to be renamed is wrong",
                                  traceflat=False)
                else:
                    for i in range(0, len(oldnames)):
                        oldname = oldnames[i]
                        newname = newnames[i]
                        if arguments["--dryrun"]:
                            Console.ok("Rename {} to {}".format(oldname, newname))
                        else:
                            Vm.rename(cloud=cloud,
                                      oldname=oldname,
                                      newname=newname,
                                      force=force
                                      )
                    msg = "info. OK."
                    Console.ok(msg)
            except Exception as e:
                # Error.traceback(e)
                Console.error("Problem deleting instances", traceflag=False)

        return ""
Пример #4
0
    def do_nova(self, args, arguments):
        """
        ::
        
            Usage:
                nova set CLOUD
                nova info [CLOUD] [--password]
                nova help
                nova [--group=GROUP] ARGUMENTS...

            A simple wrapper for the openstack nova command

            Arguments:
                GROUP           The group to add vms to
                ARGUMENTS       The arguments passed to nova
                help            Prints the nova manual
                set             reads the information from the current cloud
                                and updates the environment variables if
                                the cloud is an openstack cloud
                info            the environment values for OS

            Options:
                --group=GROUP   Add VM to GROUP group
                --password      Prints the password
                -v              verbose mode

        """
        # pprint(arguments)
        cloud = arguments['CLOUD'] or Default.cloud
        if not cloud:
            Console.error("Default cloud not set!")
            return ""

        group = arguments["--group"] or Default.group

        if not group:
            Console.error("Default group not set!")
            return ""

        if arguments["help"]:
            os.system("nova help")
            return ""
        elif arguments["info"]:
            set_os_environ(cloud)
            d = {}
            #
            # TODO: this naturally does not work as clouds will have
            # different parameters. ALos it does not unset previous
            # parameters from other clouds. See register
            #
            for attribute in ['OS_USERNAME',
                              'OS_TENANT_NAME',
                              'OS_AUTH_URL',
                              'OS_CACERT',
                              'OS_PASSWORD',
                              'OS_REGION']:
                try:
                    d[attribute] = os.environ[attribute]
                except:
                    Console.warning("OS environment variable {:} not found"
                                    .format(attribute))
                    d[attribute] = None
                if not arguments["--password"]:
                    d['OS_PASSWORD'] = "******"
            print(Printer.row_table(d, order=None, labels=["Variable", "Value"]))
            msg = "info. OK."
            Console.ok(msg)
            return ""
        elif arguments["set"]:
            if cloud:

                set_os_environ(cloud)

                msg = "{0} is set".format(cloud)
                Console.ok(msg)
            else:
                Console.error("CLOUD is required")

        else:  # nova ARGUMENTS...
            print("Cloud = {0}".format(cloud))
            try:
                set_os_environ(cloud)
                args = arguments["ARGUMENTS"]

                # arguments may contain multiple optional arguments
                if len(args) == 1:
                    args = args[0].split()

                result = Shell.execute("nova", args)


                print (result)
                # print(Nova.remove_subjectAltName_warning(result))

                """
                If request for nova boot,
                add the vm to group specified,
                or else add to default group
                """
                if "boot" in args:
                    # Logic to find ID of VM in the result
                    fields = []
                    for field in result.split("|"):
                        fields.append(field.strip())
                    index = fields.index('id') + 1
                    vm_id = fields[index]

                    # Add to group
                    Group.add(name=group, species="vm", member=vm_id, category=cloud)
            except Exception as ex:
                Console.error("Error executing Nova command: {}".format(ex))
            return ""
Пример #5
0
    def do_group(self, args, arguments):
        """
        ::

            Usage:
                group add NAME [--type=TYPE] [--category=CLOUD] --id=IDs
                group list [--category=CLOUD] [--format=FORMAT] [NAME]
                group delete NAME [--category=CLOUD]
                group remove [--category=CLOUD] --name=NAME --id=ID
                group copy FROM TO
                group merge GROUPA GROUPB MERGEDGROUP

            manage the groups

            Arguments:

                NAME         name of a group
                FROM         name of a group
                TO           name of a group
                GROUPA       name of a group
                GROUPB       name of a group
                MERGEDGROUP  name of a group

            Options:
                --category=CLOUD       the name of the category
                --format=FORMAT     the output format
                --type=TYPE         the resource type
                --name=NAME         the name of the group
                --id=IDS            the ID(s) to add to the group


            Description:

                Todo: design parameters that are useful and match
                description
                Todo: discuss and propose command

                cloudmesh can manage groups of resources and category related
                objects. As it would be cumbersome to for example delete
                many virtual machines or delete VMs that are in the same
                group, but are running in different clouds.

                Hence it is possible to add a virtual machine to a
                specific group. The group name to be added to can be set
                as a default. This way all subsequent commands use this
                default group. It can also be set via a command parameter.
                Another convenience function is that the group command can
                use the last used virtual machine. If a vm is started it
                will be automatically added to the default group if it is set.

                The delete command has an optional category parameter so that
                deletion of vms of a partial group by cloud can be
                achieved.

                If finer grained deletion is needed, it can be achieved
                with the delete command that supports deletion by name

                It is also possible to remove a VM from the group using the
                remove command, by supplying the ID

            Example:
                default group mygroup

                group add --type=vm --id=albert-[001-003]
                    adds the vms with teh given name using the Parameter
                    see base

                group add --type=vm
                 adds the last vm to the group

                group delete --name=mygroup
                    deletes all objects in the group
        """
        # pprint(arguments)

        category = arguments["--category"] or Default.get_cloud()

        if arguments["list"]:

            output = arguments["--format"] or Default.get("format",
                                                          category) or "table"
            name = arguments["NAME"]

            if name is None:

                result = Group.list(format=output, category=category)
                if result:
                    print(result)
                else:
                    print("There are no groups in the cloudmesh database!")

            else:

                result = Group.get_info(name=name,
                                        category=category,
                                        output=output)

                if result:
                    print(result)
                else:
                    msg_a = ("No group found with name `{name}` found in the "
                             "category `{category}`.".format(**locals()))

                    # find alternate
                    result = Group.get(name=name)
                    msg_b = ""
                    if result is not None:
                        msg_b = " However we found such a variable in " \
                                "category `{category}`. Please consider " \
                                "using --category={category}".format(**result)
                        Console.error(msg_a + msg_b)

                return

        elif arguments["add"]:
            type = arguments["--type"] or Default.get("type", category)

            category_id = arguments["--id"] or Default.get("id", category)

            data = {
                "name": arguments["NAME"],
                "type": type,
                "category": category,
                "id": category_id
            }

            Group.add(**data)
            return

        elif arguments["delete"]:
            data = {
                "name": arguments["NAME"],
                "category": category,
            }

            result = Group.delete(**data)
            if result:
                Console.ok("Deletion completed. ok.")
            else:
                Console.error(
                    "No group with name `{name}` found".format(**data))
            return

        elif arguments["remove"]:
            name = arguments["--name"]
            category_id = arguments["--id"]

            if not category:
                Console.error("Default category not set!")
                return

            result = Group.remove(name, category_id, category)
            if result:
                Console.ok(result)
            else:
                Console.error(
                    "Failed to delete ID [{}] from group [{}] in the database!"
                    .format(category_id, name))
            return

        elif arguments["copy"]:
            _from = arguments["FROM"]
            _to = arguments["TO"]

            Group.copy(_from, _to)
            return

        elif arguments["merge"]:
            _groupA = arguments["GROUPA"]
            _groupB = arguments["GROUPB"]
            _mergedGroup = arguments["MERGEDGROUP"]

            Group.merge(_groupA, _groupB, _mergedGroup)
            return
Пример #6
0
    def do_vm(self, args, arguments):
        """
        ::

            Usage:
                vm default [--cloud=CLOUD][--format=FORMAT]
                vm refresh [--cloud=CLOUD]
                vm boot [--name=NAME]
                        [--cloud=CLOUD]
                        [--image=IMAGE_OR_ID]
                        [--flavor=FLAVOR_OR_ID]
                        [--group=GROUP]
                        [--secgroup=SECGROUP]
                        [--key=KEY]
                        [--dryrun]
                vm start [NAME]...
                         [--group=GROUP]
                         [--cloud=CLOUD]
                         [--force]
                vm stop [NAME]...
                        [--group=GROUP]
                        [--cloud=CLOUD]
                        [--force]
                vm delete [NAME]...
                          [--group=GROUP]
                          [--cloud=CLOUD]
                          [--force]
                vm ip assign [NAME]...
                          [--cloud=CLOUD]
                vm ip show [NAME]...
                           [--group=GROUP]
                           [--cloud=CLOUD]
                           [--format=FORMAT]
                           [--refresh]
                vm login [NAME] [--user=USER]
                         [--ip=IP]
                         [--cloud=CLOUD]
                         [--key=KEY]
                         [--command=COMMAND]
                vm rename [NAME]...
                          [--new=NEWNAME]
                          [--cloud=CLOUD]
                vm list [NAME_OR_ID]
                        [--cloud=CLOUD|--all]
                        [--group=GROUP]
                        [--format=FORMAT]
                        [--refresh]
                vm status [--cloud=CLOUD]
                vm info [--cloud=CLOUD]
                        [--format=FORMAT]

            Arguments:
                COMMAND        positional arguments, the commands you want to
                               execute on the server(e.g. ls -a) separated by ';',
                               you will get a return of executing result instead of login to
                               the server, note that type in -- is suggested before
                               you input the commands
                NAME           server name. By default it is set to the name of last vm from database.
                NAME_OR_ID     server name or ID
                KEYPAIR_NAME   Name of the openstack keypair to be used to create VM. Note this is not a path to key.
                NEWNAME        New name of the VM while renaming.

            Options:
                --ip=IP          give the public ip of the server
                --cloud=CLOUD    give a cloud to work on, if not given, selected
                                 or default cloud will be used
                --count=COUNT    give the number of servers to start
                --detail         for table print format, a brief version
                                 is used as default, use this flag to print
                                 detailed table
                --flavor=FLAVOR_OR_ID  give the name or id of the flavor
                --group=GROUP          give the group name of server
                --secgroup=SECGROUP    security group name for the server
                --image=IMAGE_OR_ID    give the name or id of the image
                --key=KEY        specify a key to use, input a string which
                                 is the full path to the private key file
                --keypair_name=KEYPAIR_NAME   Name of the openstack keypair to be used to create VM.
                                              Note this is not a path to key.
                --user=USER      give the user name of the server that you want
                                 to use to login
                --name=NAME      give the name of the virtual machine
                --force          delete vms without user's confirmation
                --command=COMMAND
                                 specify the commands to be executed
                --new=NEWNAME    Specify the new name for a VM while renaming.
                                 By default, this will be set to <username>-<count> format.



            Description:
                commands used to boot, start or delete servers of a cloud

                vm default [options...]     Displays default parameters that are set for VM boot.
                vm boot [options...]        Boots servers on a cloud, user may specify
                                            flavor, image .etc, otherwise default values
                                            will be used, see how to set default values
                                            of a cloud: cloud help
                vm start [options...]       Starts a suspended or stopped vm instance.
                vm stop [options...]        Stops a vm instance .
                vm delete [options...]      delete servers of a cloud, user may delete
                                            a server by its name or id, delete servers
                                            of a group or servers of a cloud, give prefix
                                            and/or range to find servers by their names.
                                            Or user may specify more options to narrow
                                            the search
                vm floating_ip_assign [options...]   assign a public ip to a VM of a cloud
                vm ip show [options...]     show the ips of VMs
                vm login [options...]       login to a server or execute commands on it
                vm list [options...]        same as command "list vm", please refer to it
                vm status [options...]      Retrieves status of last VM booted on cloud and displays it.

            Tip:
                give the VM name, but in a hostlist style, which is very
                convenient when you need a range of VMs e.g. sample[1-3]
                => ['sample1', 'sample2', 'sample3']
                sample[1-3,18] => ['sample1', 'sample2', 'sample3', 'sample18']

        """

        def _print_dict(d, header=None, format='table'):
            if format == "json":
                return json.dumps(d, indent=4)
            elif format == "yaml":
                return pyaml.dump(d)
            elif format == "table":
                return dict_printer(d,
                                    order=["id",
                                           "name",
                                           "status"],
                                    output="table",
                                    sort_keys=True)
            else:
                return d

        def _print_dict_ip(d, header=None, format='table'):
            if format == "json":
                return json.dumps(d, indent=4)
            elif format == "yaml":
                return pyaml.dump(d)
            elif format == "table":
                return dict_printer(d,
                                    order=["network",
                                           "version",
                                           "addr"],
                                    output="table",
                                    sort_keys=True)
            else:
                return d

        """
        def list_vms_on_cloud(cloud="kilo", group=None, format="table"):

            Utility reusable function to list vms on the cloud.
            :param cloud:
            :param group:
            :param format:
            :return:

            _cloud = cloud
            _group = group
            _format = format

            cloud_provider = CloudProvider(_cloud).provider
            servers = cloud_provider.list_vm(_cloud)


            server_list = {}
            index = 0
            # TODO: Improve the implementation to display more fields if required.
            for server in servers:
                server_list[index] = {}
                server_list[index]["name"] = server.name
                server_list[index]["id"] = server.id
                server_list[index]["status"] = server.status
                index += 1


            # TODO: Get this printed in a table
            print("Print table")
            dict_printer(servers, output=_format)
        """

        # pprint(arguments)

        def _refresh():
            try:
                msg = "Refresh VMs for cloud {:}.".format(cloud)
                if Vm.refresh(cloud=cloud):
                    Console.ok("{:} OK.".format(msg))
                else:
                    Console.error("{:} failed".format(msg))
            except Exception as e:
                Error.traceback(e)
                Console.error("Problem running VM refresh")

        cloud = arguments["--cloud"] or Default.get_cloud()

        if arguments["boot"]:
            name = None
            try:
                name = arguments["--name"]
                is_name_provided = True

                if name is None:
                    is_name_provided = False

                    count = Counter.get()
                    prefix = Username()

                    if prefix is None or count is None:
                        Console.error("Prefix and Count could not be retrieved correctly.")
                        return

                    # BUG THE Z FILL SHOULD BE detected from yaml file
                    name = prefix + "-" + str(count).zfill(3)

                # if default cloud not set, return error
                if not cloud:
                    Console.error("Default cloud not set.")
                    return ""

                image = arguments["--image"] or Default.get("image",
                                                            category=cloud)
                # if default image not set, return error
                if not image:
                    Console.error("Default image not set.")
                    return ""

                flavor = arguments["--flavor"] or Default.get("flavor",
                                                              category=cloud)
                # if default flavor not set, return error
                if not flavor:
                    Console.error("Default flavor not set.")
                    return ""

                group = arguments["--group"] or Default.get_group()

                # if default group not set, return error
                if not group:
                    group = "default"
                    Default.set_group(group)

                secgroup = arguments["--secgroup"] or Default.get(
                    "secgroup", category=cloud)
                # print("SecurityGrp : {:}".format(secgroup))
                secgroup_list = ["default"]
                if secgroup is not None:
                    secgroup_list.append(secgroup)

                key_name = arguments["--key"] or Default.get_key()
                # if default keypair not set, return error
                if not key_name:
                    Console.error("Default key not set.")
                    return ""

                if arguments["--dryrun"]:

                    data = {
                        "cloud": cloud,
                        "name": name,
                        "image": image,
                        "flavor": flavor,
                        "key_name": key_name,
                        "secgroup_list": secgroup_list,
                        "group": group
                    }
                    print (attribute_printer(data, output="table"))
                    msg = "dryrun info. OK."
                    Console.ok(msg)
                else:
                    vm_id = Vm.boot(cloud=cloud,
                                    name=name,
                                    image=image,
                                    flavor=flavor,
                                    key_name=key_name,
                                    secgroup_list=secgroup_list)
                    Default.set("last_vm_id", vm_id)
                    Default.set("last_vm_name", name)

                    # SHOULD WE NOT DO THIS BY DEFAULT EVEN IF WE SPECIFY THE NAME?
                    if is_name_provided is False:
                        # Incrementing count
                        Counter.incr()

                    # Add to group
                    if vm_id is not None:
                        Group.add(name=group, type="vm", id=name,
                                  category=cloud)

                    msg = "info. OK."
                    Console.ok(msg)

            except Exception as e:
                Error.traceback(e)
                Console.error("Problem booting instance {:}".format(name))

        elif arguments["default"]:
            try:
                count = Counter.get()
                prefix = Username()

                if prefix is None or count is None:
                    Console.error("Prefix and Count could not be retrieved correctly.")
                    return

                vm_name = prefix + "-" + str(count).zfill(3)
                data = {"name": vm_name,
                        "cloud": arguments["--cloud"] or Default.get_cloud()}
                for attribute in ["image", "flavor", "key", "login_key", "group", "secgroup"]:
                    data[attribute] = Default.get(attribute, category=cloud)
                output_format = arguments["--format"] or "table"
                print (attribute_printer(data, output=output_format))
                msg = "info. OK."
                Console.ok(msg)
                ValueError("default command not implemented properly. Upon "
                           "first install the defaults should be read from yaml.")
            except Exception as e:
                Error.traceback(e)
                Console.error("Problem listing defaults")

        elif arguments["status"]:
            try:
                cloud_provider = CloudProvider(cloud).provider
                vm_list = cloud_provider.list_vm(cloud)
                print("Status of VM {} is {}".format(vm_list[0]["name"], vm_list[0]["status"]))
                msg = "info. OK."
                Console.ok(msg)
            except Exception as e:
                Error.traceback(e)
                Console.error("Problem retrieving status of the VM")

        elif arguments["info"]:
            try:
                cloud_provider = CloudProvider(cloud).provider
                vms = cloud_provider.list_vm(cloud)
                vm = vms[0]
                output_format = arguments["--format"] or "table"
                print (attribute_printer(vm, output=output_format))
                msg = "info. OK."
                Console.ok(msg)
            except Exception as e:
                Error.traceback(e)
                Console.error("Problem retrieving status of the VM")

        elif arguments["start"]:
            try:
                servers = arguments["NAME"]

                # If names not provided, take the last vm from DB.
                if servers is None or len(servers) == 0:
                    last_vm = Vm.get_last_vm(cloud=cloud)
                    if last_vm is None:
                        Console.error("No VM records in database. Please run vm refresh.")
                        return ""
                    name = last_vm["name"]
                    # print(name)
                    servers = list()
                    servers.append(name)

                group = arguments["--group"]
                force = arguments["--force"]

                # if default cloud not set, return error
                if not cloud:
                    Console.error("Default cloud not set.")
                    return ""
                Vm.start(cloud=cloud, servers=servers)

                msg = "info. OK."
                Console.ok(msg)
            except Exception as e:
                Error.traceback(e)
                Console.error("Problem starting instances")

        elif arguments["stop"]:
            try:
                servers = arguments["NAME"]

                # If names not provided, take the last vm from DB.
                if servers is None or len(servers) == 0:
                    last_vm = Vm.get_last_vm(cloud=cloud)
                    if last_vm is None:
                        Console.error("No VM records in database. Please run vm refresh.")
                        return ""
                    name = last_vm["name"]
                    # print(name)
                    servers = list()
                    servers.append(name)

                group = arguments["--group"]
                force = arguments["--force"]

                # if default cloud not set, return error
                if not cloud:
                    Console.error("Default cloud not set.")
                    return ""

                Vm.stop(cloud=cloud, servers=servers)

                msg = "info. OK."
                Console.ok(msg)
            except Exception as e:
                Error.traceback(e)
                Console.error("Problem stopping instances")

        elif arguments["refresh"]:

            _refresh()

        elif arguments["delete"]:
            try:
                servers = arguments["NAME"]

                # If names not provided, take the last vm from DB.
                if servers is None or len(servers) == 0:
                    last_vm = Vm.get_last_vm(cloud=cloud)
                    if last_vm is None:
                        Console.error("No VM records in database. Please run vm refresh.")
                        return ""
                    name = last_vm["name"]
                    servers = list()
                    servers.append(name)

                group = arguments["--group"]
                force = arguments["--force"]

                # if default cloud not set, return error
                if not cloud:
                    Console.error("Default cloud not set.")
                    return ""

                Vm.delete(cloud=cloud, servers=servers)

                msg = "info. OK."
                Console.ok(msg)
            except Exception as e:
                Error.traceback(e)
                Console.error("Problem deleting instances")

        elif arguments["ip"] and arguments["assign"]:
            vmids = arguments["NAME"]

            # If names not provided, take the last vm from DB.
            if vmids is None or len(vmids) == 0:
                last_vm = Vm.get_last_vm(cloud=cloud)
                if last_vm is None:
                    Console.error("No VM records in database. Please run vm refresh.")
                    return ""
                name = last_vm["name"]
                vmids = list()
                vmids.append(name)

            # if default cloud not set, return error
            if not cloud:
                Console.error("Default cloud not set.")
                return ""
            try:
                cloud_provider = CloudProvider(cloud).provider
                for sname in vmids:
                    floating_ip = cloud_provider.create_assign_floating_ip(
                        sname)
                    if floating_ip is not None:
                        print(
                            "Floating IP assigned to {:} successfully and it is: {:}".format(
                                sname, floating_ip))
                msg = "info. OK."
                Console.ok(msg)
            except Exception as e:
                Error.traceback(e)
                Console.error("Problem assigning floating ips.")

        elif arguments["ip"] and arguments["show"]:
            vmids = arguments["NAME"]

            # If names not provided, take the last vm from DB.
            if vmids is None or len(vmids) == 0:
                last_vm = Vm.get_last_vm(cloud=cloud)
                if last_vm is None:
                    Console.error("No VM records in database. Please run vm refresh.")
                    return ""
                name = last_vm["name"]
                vmids = list()
                vmids.append(name)

            group = arguments["--group"]
            output_format = arguments["--format"] or "table"
            refresh = arguments["--refresh"]

            # if default cloud not set, return error
            if not cloud:
                Console.error("Default cloud not set.")
                return ""

            try:
                cloud_provider = CloudProvider(cloud).provider
                for server in vmids:
                    ip_addr = cloud_provider.get_ips(server)

                    ipaddr_dict = Vm.construct_ip_dict(ip_addr, cloud)

                    print(
                        "IP Addresses of instance {:} are as follows:-".format(
                            server))
                    print(_print_dict_ip(ipaddr_dict, format=output_format))
                msg = "info. OK."
                Console.ok(msg)
            except Exception as e:
                Error.traceback(e)
                Console.error(
                    "Problem getting ip addresses for instance {:}".format(id))

        elif arguments["login"]:
            vm_names = arguments["NAME"]

            # If names not provided, take the last vm from DB.
            if vm_names is None or len(vm_names) == 0:
                last_vm = Vm.get_last_vm(cloud=cloud)
                if last_vm is None:
                    Console.error("No VM records in database. Please run vm refresh.")
                    return ""
                name = last_vm["name"]
            else:
                name = vm_names[0]

            print("Logging in into {:} machine...".format(name))

            user = arguments["--user"]

            # Get user if user argument not specified.
            if user is None:
                user_from_db = Vm.get_vm_login_user(name, cloud)
                user_suggest = user_from_db or getpass.getuser()
                user = input("Enter the user to login (Default: {}):".format(user_suggest)) or user_suggest
                Vm.set_vm_login_user(name, cloud, user)

            ip = arguments["--ip"]
            commands = arguments["--command"]

            # if default cloud not set, return error
            if not cloud:
                Console.error("Default cloud not set.")
                return ""

            key = arguments["--key"] or Default.get("login_key",
                                                    category=cloud)
            if not key:
                Console.error("Default login_key not set.")
                return ""

            cloud_provider = CloudProvider(cloud).provider
            # print("Name : {:}".format(name))
            ip_addr = cloud_provider.get_ips(name)

            ip_addresses = []
            ipaddr_dict = Vm.construct_ip_dict(ip_addr, cloud)
            for entry in ipaddr_dict:
                ip_addresses.append(ipaddr_dict[entry]["addr"])

            if ip is not None:
                if ip not in ip_addresses:
                    print(
                        "ERROR: IP Address specified does not match with the host.")
                    return ""
            else:
                print("Determining IP Address to use with a ping test.")
                # This part assumes that the ping is allowed to the machine.
                for ipadd in ip_addresses:
                    print("Checking {:}...".format(ipadd))
                    try:
                        socket.gethostbyaddr(ipadd)
                        # ip will be set if above command is successful.
                        ip = ipadd
                    except socket.herror:
                        print("Cannot reach {:}.".format(ipadd))

            if ip is None:
                print("SORRY. Unable to connect to the machine")
                return ""
            else:
                print("IP to be used is: {:}".format(ip))

            SecGroup.enable_ssh(cloud=cloud)
            # print("COMMANDS : {:}".format(commands))

            # Constructing the ssh command to connect to the machine.
            sshcommand = "ssh"
            if key is not None:
                sshcommand += " -i {:}".format(key)
            sshcommand += " -o StrictHostKeyChecking=no"
            sshcommand += " {:}@{:}".format(user, ip)
            if commands is not None:
                sshcommand += " \"{:}\"".format(commands)

            # print(sshcommand)
            os.system(sshcommand)

        elif arguments["list"]:

            if arguments["--all"]:
                try:
                    _format = arguments["--format"] or "table"
                    d = ConfigDict("cloudmesh.yaml")
                    for cloud in d["cloudmesh"]["clouds"]:

                        if arguments["--refresh"] or Default.refresh():
                            _refresh()

                        print("Listing VMs on Cloud: {:}".format(cloud))
                        result = Vm.list(cloud=cloud, output_format=_format)
                        if result is not None:
                            print(result)
                        else:
                            print("Sorry. No data found with requested parameters in DB.")
                    msg = "info. OK."
                    Console.ok(msg)
                except Exception as e:
                    Error.traceback(e)
                    Console.error("Problem listing all instances")
            else:

                # if default cloud not set, return error
                if not cloud:
                    Console.error("Default cloud not set.")
                    return ""

                try:
                    name_or_id = arguments["NAME_OR_ID"]
                    group = arguments["--group"]
                    _format = arguments["--format"] or "table"

                    # list_vms_on_cloud(cloud, group, _format)
                    if arguments["--refresh"] or Default.refresh():
                        _refresh()

                    result = Vm.list(name_or_id=name_or_id, cloud=cloud, output_format=_format)

                    if result is not None:
                        print(result)
                    else:
                        print("No data found with the requested parameters.")

                    msg = "info. OK."
                    Console.ok(msg)

                except Exception as e:
                    Error.traceback(e)
                    Console.error(
                        "Problem listing instances on cloud {:}".format(cloud))

        elif arguments["rename"]:
            try:
                servers = arguments["NAME"]

                # If names not provided, take the last vm from DB.
                if servers is None or len(servers) == 0:
                    last_vm = Vm.get_last_vm(cloud=cloud)
                    if last_vm is None:
                        Console.error("No VM records in database. Please run vm refresh.")
                        return ""
                    name = last_vm["name"]
                    servers = list()
                    servers.append(name)

                # if default cloud not set, return error
                if not cloud:
                    Console.error("Default cloud not set.")
                    return ""

                new_name = arguments["--new"]
                is_name_provided = True

                # If the new name is not provided, make the new new name in format username-count.
                if new_name is None or len(new_name) == 0:

                    is_name_provided = False

                    count = Counter.get()
                    prefix = Username()

                    if prefix is None or count is None:
                        Console.error("Prefix and Count could not be retrieved correctly.")
                        return

                    # BUG THE Z FILL SHOULD BE detected from yaml file
                    new_name = prefix + "-" + str(count).zfill(3)

                Vm.rename(cloud=cloud, servers=servers, new_name=new_name)

                if is_name_provided is False:
                    # Incrementing count
                    Counter.incr()

                msg = "info. OK."
                Console.ok(msg)
            except Exception as e:
                Error.traceback(e)
                Console.error("Problem deleting instances")

        return ""
Пример #7
0
    def do_nova(self, args, arguments):
        """
        ::
        
            Usage:
                nova set CLOUD
                nova info [CLOUD] [--password]
                nova help
                nova [--group=GROUP] ARGUMENTS...

            A simple wrapper for the openstack nova command

            Arguments:
                GROUP           The group to add vms to
                ARGUMENTS       The arguments passed to nova
                help            Prints the nova manual
                set             reads the information from the current cloud
                                and updates the environment variables if
                                the cloud is an openstack cloud
                info            the environment values for OS

            Options:
                --group=GROUP   Add VM to GROUP group
                --password      Prints the password
                -v              verbose mode

        """
        # pprint(arguments)
        cloud = arguments['CLOUD'] or Default.get_cloud()
        if not cloud:
            Console.error("Default cloud not set!")
            return ""

        group = arguments["--group"] or Default.get("group", category=cloud)

        if not group:
            Console.error("Default group not set!")
            return ""

        if arguments["help"]:
            os.system("nova help")
            return ""
        elif arguments["info"]:
            set_os_environ(cloud)
            d = {}
            #
            # TODO: this naturally does not work as clouds will have
            # different parameters. ALos it does not unset previous
            # parameters from other clouds. See register
            #
            for attribute in [
                    'OS_USERNAME', 'OS_TENANT_NAME', 'OS_AUTH_URL',
                    'OS_CACERT', 'OS_PASSWORD', 'OS_REGION'
            ]:
                try:
                    d[attribute] = os.environ[attribute]
                except:
                    Console.warning(
                        "OS environment variable {:} not found".format(
                            attribute))
                    d[attribute] = None
                if not arguments["--password"]:
                    d['OS_PASSWORD'] = "******"
            print(row_table(d, order=None, labels=["Variable", "Value"]))
            msg = "info. OK."
            Console.ok(msg)
            return ""
        elif arguments["set"]:
            if cloud:

                set_os_environ(cloud)

                msg = "{0} is set".format(cloud)
                Console.ok(msg)
            else:
                Console.error("CLOUD is required")

        else:  # nova ARGUMENTS...
            print("Cloud = {0}".format(cloud))
            try:
                set_os_environ(cloud)
                args = arguments["ARGUMENTS"]

                # arguments may contain multiple optional arguments
                if len(args) == 1:
                    args = args[0].split()

                result = Shell.execute("nova", args)

                print(Nova.remove_subjectAltName_warning(result))
                """
                If request for nova boot,
                add the vm to group specified,
                or else add to default group
                """
                if "boot" in args:
                    # Logic to find ID of VM in the result
                    fields = []
                    for field in result.split("|"):
                        fields.append(field.strip())
                    index = fields.index('id') + 1
                    vm_id = fields[index]

                    # Add to group
                    Group.add(name=group, type="vm", id=vm_id, category=cloud)
            except Exception as ex:
                Console.error("Error executing Nova command: {}".format(ex))
            return ""
Пример #8
0
    def do_group(self, args, arguments):
        """
        ::

            Usage:
                group list [GROUPNAME] [--format=FORMAT]
                group remove NAMES [--group=GROUPNAME]
                group add NAMES [--type=TYPE] [--group=GROUPNAME]
                group delete GROUPS
                group copy FROM TO
                group merge GROUPA GROUPB MERGEDGROUP

            manage the groups

            Arguments:

                NAMES        names of object to be added
                GROUPS       names of a groups
                FROM         name of a group
                TO           name of a group
                GROUPA       name of a group
                GROUPB       name of a group
                MERGEDGROUP  name of a group

            Options:
                --format=FORMAT     the output format
                --type=TYPE         the resource type
                --name=NAME         the name of the group
                --id=IDS            the ID(s) to add to the group


            Description:

                Todo: design parameters that are useful and match
                description
                Todo: discuss and propose command

                cloudmesh can manage groups of resource related
                objects. As it would be cumbersome to for example delete
                many virtual machines or delete VMs that are in the same
                group, but are running in different clouds.

                Hence it is possible to add a virtual machine to a
                specific group. The group name to be added to can be set
                as a default. This way all subsequent commands use this
                default group. It can also be set via a command parameter.
                Another convenience function is that the group command can
                use the last used virtual machine. If a vm is started it
                will be automatically added to the default group if it is set.

                If finer grained deletion is needed, it can be achieved
                with the delete command that supports deletion by name

                It is also possible to remove a VM from the group using the
                remove command, by supplying the ID

            Note:

                The type is internally called for the group species, we may
                eliminate the species column and just use the type column for it,

            Example:
                default group mygroup

                group add --type=vm --id=albert-[001-003]
                    adds the vms with the given name using the Parameter
                    see base

                group add --type=vm
                 adds the last vm to the group

                group delete --name=mygroup
                    deletes all objects in the group
        """
        # pprint(arguments)

        if arguments["list"]:

            output = arguments["--format"] or Default.get(
                name="format", category="general") or "table"
            name = arguments["GROUPNAME"]
            if name is None:

                result = Group.list(output=output)
                if result:
                    print(result)
                else:
                    print(
                        "No groups found other than the default group but it has no members."
                    )

            else:

                result = Group.list(name=name, output=output)

                if result:
                    print(result)
                else:
                    msg_a = ("No group found with name `{name}` found in the "
                             "category `{category}`.".format(**locals()))
                '''
                    # find alternate
                    result = Group.get(name=name)

                    msg_b = ""
                    if result is not None and len(result) < 0:
                        msg_b = " However we found such a variable in " \
                                "category `{category}`. Please consider " \
                                "using --category={category}".format(**locals())
                        Console.error(msg_a + msg_b)
                    else:
                        Console.error("No group with name {name} exists.".format(**locals()))
                '''

                return ""

        elif arguments["add"]:
            # group add NAME... [--type=TYPE] [--category=CLOUD] [--group=GROUP]

            print("AAA", arguments["NAMES"])
            members = Parameter.expand(arguments["NAMES"])
            print("MMMM", members)
            data = dotdict({
                "species": arguments["--type"] or "vm",
                "name": arguments["--group"] or Default.group
            })
            print("DDD", data)
            for member in members:
                data.member = member
                pprint(data)
                Group.add(**data)

            return ""

        elif arguments["delete"]:
            groups = Parameter.expand(arguments["GROUPS"])

            for group in groups:
                result = Group.delete(group)

                if result:
                    Console.ok(result)
                else:
                    Console.error("delete group {}. failed.".format(group))
            return ""

        elif arguments["remove"]:
            members = Parameter.expand(arguments["NAMES"])

            group = arguments["--group"] or Default.group

            for member in members:
                result = Group.remove(group, member)

                if result:
                    Console.ok(result)
                else:
                    Console.error("remove {} from group {}. failed.".format(
                        group, member))
            return ""

        elif arguments["copy"]:
            _from = arguments["FROM"]
            _to = arguments["TO"]

            Group.copy(_from, _to)
            return ""

        elif arguments["merge"]:
            _groupA = arguments["GROUPA"]
            _groupB = arguments["GROUPB"]
            _mergedGroup = arguments["MERGEDGROUP"]

            Group.merge(_groupA, _groupB, _mergedGroup)
            return ""
Пример #9
0
    def do_vm(self, args, arguments):
        """
        ::

            Usage:
                vm default [--cloud=CLOUD][--format=FORMAT]
                vm refresh [--cloud=CLOUD]
                vm boot [--name=NAME]
                        [--cloud=CLOUD]
                        [--image=IMAGE_OR_ID]
                        [--flavor=FLAVOR_OR_ID]
                        [--group=GROUP]
                        [--secgroup=SECGROUP]
                        [--key=KEY]
                        [--dryrun]
                vm start [NAME]...
                         [--group=GROUP]
                         [--cloud=CLOUD]
                         [--force]
                vm stop [NAME]...
                        [--group=GROUP]
                        [--cloud=CLOUD]
                        [--force]
                vm delete [NAME]...
                          [--group=GROUP]
                          [--cloud=CLOUD]
                          [--force]
                vm ip assign [NAME]...
                          [--cloud=CLOUD]
                vm ip show [NAME]...
                           [--group=GROUP]
                           [--cloud=CLOUD]
                           [--format=FORMAT]
                           [--refresh]
                vm login [NAME] [--user=USER]
                         [--ip=IP]
                         [--cloud=CLOUD]
                         [--key=KEY]
                         [--command=COMMAND]
                vm rename [NAME]...
                          [--new=NEWNAME]
                          [--cloud=CLOUD]
                vm list [NAME_OR_ID]
                        [--cloud=CLOUD|--all]
                        [--group=GROUP]
                        [--format=FORMAT]
                        [--refresh]
                vm status [--cloud=CLOUD]
                vm info [--cloud=CLOUD]
                        [--format=FORMAT]

            Arguments:
                COMMAND        positional arguments, the commands you want to
                               execute on the server(e.g. ls -a) separated by ';',
                               you will get a return of executing result instead of login to
                               the server, note that type in -- is suggested before
                               you input the commands
                NAME           server name. By default it is set to the name of last vm from database.
                NAME_OR_ID     server name or ID
                KEYPAIR_NAME   Name of the openstack keypair to be used to create VM. Note this is not a path to key.
                NEWNAME        New name of the VM while renaming.

            Options:
                --ip=IP          give the public ip of the server
                --cloud=CLOUD    give a cloud to work on, if not given, selected
                                 or default cloud will be used
                --count=COUNT    give the number of servers to start
                --detail         for table print format, a brief version
                                 is used as default, use this flag to print
                                 detailed table
                --flavor=FLAVOR_OR_ID  give the name or id of the flavor
                --group=GROUP          give the group name of server
                --secgroup=SECGROUP    security group name for the server
                --image=IMAGE_OR_ID    give the name or id of the image
                --key=KEY        specify a key to use, input a string which
                                 is the full path to the private key file
                --keypair_name=KEYPAIR_NAME   Name of the openstack keypair to be used to create VM.
                                              Note this is not a path to key.
                --user=USER      give the user name of the server that you want
                                 to use to login
                --name=NAME      give the name of the virtual machine
                --force          delete vms without user's confirmation
                --command=COMMAND
                                 specify the commands to be executed
                --new=NEWNAME    Specify the new name for a VM while renaming.
                                 By default, this will be set to <username>-<count> format.



            Description:
                commands used to boot, start or delete servers of a cloud

                vm default [options...]     Displays default parameters that are set for VM boot.
                vm boot [options...]        Boots servers on a cloud, user may specify
                                            flavor, image .etc, otherwise default values
                                            will be used, see how to set default values
                                            of a cloud: cloud help
                vm start [options...]       Starts a suspended or stopped vm instance.
                vm stop [options...]        Stops a vm instance .
                vm delete [options...]      delete servers of a cloud, user may delete
                                            a server by its name or id, delete servers
                                            of a group or servers of a cloud, give prefix
                                            and/or range to find servers by their names.
                                            Or user may specify more options to narrow
                                            the search
                vm floating_ip_assign [options...]   assign a public ip to a VM of a cloud
                vm ip show [options...]     show the ips of VMs
                vm login [options...]       login to a server or execute commands on it
                vm list [options...]        same as command "list vm", please refer to it
                vm status [options...]      Retrieves status of last VM booted on cloud and displays it.

            Tip:
                give the VM name, but in a hostlist style, which is very
                convenient when you need a range of VMs e.g. sample[1-3]
                => ['sample1', 'sample2', 'sample3']
                sample[1-3,18] => ['sample1', 'sample2', 'sample3', 'sample18']

        """
        def _print_dict(d, header=None, format='table'):
            if format == "json":
                return json.dumps(d, indent=4)
            elif format == "yaml":
                return pyaml.dump(d)
            elif format == "table":
                return dict_printer(d,
                                    order=["id", "name", "status"],
                                    output="table",
                                    sort_keys=True)
            else:
                return d

        def _print_dict_ip(d, header=None, format='table'):
            if format == "json":
                return json.dumps(d, indent=4)
            elif format == "yaml":
                return pyaml.dump(d)
            elif format == "table":
                return dict_printer(d,
                                    order=["network", "version", "addr"],
                                    output="table",
                                    sort_keys=True)
            else:
                return d

        """
        def list_vms_on_cloud(cloud="kilo", group=None, format="table"):

            Utility reusable function to list vms on the cloud.
            :param cloud:
            :param group:
            :param format:
            :return:

            _cloud = cloud
            _group = group
            _format = format

            cloud_provider = CloudProvider(_cloud).provider
            servers = cloud_provider.list_vm(_cloud)


            server_list = {}
            index = 0
            # TODO: Improve the implementation to display more fields if required.
            for server in servers:
                server_list[index] = {}
                server_list[index]["name"] = server.name
                server_list[index]["id"] = server.id
                server_list[index]["status"] = server.status
                index += 1


            # TODO: Get this printed in a table
            print("Print table")
            dict_printer(servers, output=_format)
        """

        # pprint(arguments)

        def _refresh():
            try:
                msg = "Refresh VMs for cloud {:}.".format(cloud)
                if Vm.refresh(cloud=cloud):
                    Console.ok("{:} OK.".format(msg))
                else:
                    Console.error("{:} failed".format(msg))
            except Exception as e:
                Error.traceback(e)
                Console.error("Problem running VM refresh")

        cloud = arguments["--cloud"] or Default.get_cloud()

        if arguments["boot"]:
            name = None
            try:
                name = arguments["--name"]
                is_name_provided = True

                if name is None:
                    is_name_provided = False

                    count = Counter.get()
                    prefix = Username()

                    if prefix is None or count is None:
                        Console.error(
                            "Prefix and Count could not be retrieved correctly."
                        )
                        return

                    # BUG THE Z FILL SHOULD BE detected from yaml file
                    name = prefix + "-" + str(count).zfill(3)

                # if default cloud not set, return error
                if not cloud:
                    Console.error("Default cloud not set.")
                    return ""

                image = arguments["--image"] or Default.get("image",
                                                            category=cloud)
                # if default image not set, return error
                if not image:
                    Console.error("Default image not set.")
                    return ""

                flavor = arguments["--flavor"] or Default.get("flavor",
                                                              category=cloud)
                # if default flavor not set, return error
                if not flavor:
                    Console.error("Default flavor not set.")
                    return ""

                group = arguments["--group"] or Default.get_group()

                # if default group not set, return error
                if not group:
                    group = "default"
                    Default.set_group(group)

                secgroup = arguments["--secgroup"] or Default.get(
                    "secgroup", category=cloud)
                # print("SecurityGrp : {:}".format(secgroup))
                secgroup_list = ["default"]
                if secgroup is not None:
                    secgroup_list.append(secgroup)

                key_name = arguments["--key"] or Default.get_key()
                # if default keypair not set, return error
                if not key_name:
                    Console.error("Default key not set.")
                    return ""

                if arguments["--dryrun"]:

                    data = {
                        "cloud": cloud,
                        "name": name,
                        "image": image,
                        "flavor": flavor,
                        "key_name": key_name,
                        "secgroup_list": secgroup_list,
                        "group": group
                    }
                    print(attribute_printer(data, output="table"))
                    msg = "dryrun info. OK."
                    Console.ok(msg)
                else:
                    vm_id = Vm.boot(cloud=cloud,
                                    name=name,
                                    image=image,
                                    flavor=flavor,
                                    key_name=key_name,
                                    secgroup_list=secgroup_list)
                    Default.set("last_vm_id", vm_id)
                    Default.set("last_vm_name", name)

                    # SHOULD WE NOT DO THIS BY DEFAULT EVEN IF WE SPECIFY THE NAME?
                    if is_name_provided is False:
                        # Incrementing count
                        Counter.incr()

                    # Add to group
                    if vm_id is not None:
                        Group.add(name=group,
                                  type="vm",
                                  id=name,
                                  category=cloud)

                    msg = "info. OK."
                    Console.ok(msg)

            except Exception as e:
                Error.traceback(e)
                Console.error("Problem booting instance {:}".format(name))

        elif arguments["default"]:
            try:
                count = Counter.get()
                prefix = Username()

                if prefix is None or count is None:
                    Console.error(
                        "Prefix and Count could not be retrieved correctly.")
                    return

                vm_name = prefix + "-" + str(count).zfill(3)
                data = {
                    "name": vm_name,
                    "cloud": arguments["--cloud"] or Default.get_cloud()
                }
                for attribute in [
                        "image", "flavor", "key", "login_key", "group",
                        "secgroup"
                ]:
                    data[attribute] = Default.get(attribute, category=cloud)
                output_format = arguments["--format"] or "table"
                print(attribute_printer(data, output=output_format))
                msg = "info. OK."
                Console.ok(msg)
                ValueError(
                    "default command not implemented properly. Upon "
                    "first install the defaults should be read from yaml.")
            except Exception as e:
                Error.traceback(e)
                Console.error("Problem listing defaults")

        elif arguments["status"]:
            try:
                cloud_provider = CloudProvider(cloud).provider
                vm_list = cloud_provider.list_vm(cloud)
                print("Status of VM {} is {}".format(vm_list[0]["name"],
                                                     vm_list[0]["status"]))
                msg = "info. OK."
                Console.ok(msg)
            except Exception as e:
                Error.traceback(e)
                Console.error("Problem retrieving status of the VM")

        elif arguments["info"]:
            try:
                cloud_provider = CloudProvider(cloud).provider
                vms = cloud_provider.list_vm(cloud)
                vm = vms[0]
                output_format = arguments["--format"] or "table"
                print(attribute_printer(vm, output=output_format))
                msg = "info. OK."
                Console.ok(msg)
            except Exception as e:
                Error.traceback(e)
                Console.error("Problem retrieving status of the VM")

        elif arguments["start"]:
            try:
                servers = arguments["NAME"]

                # If names not provided, take the last vm from DB.
                if servers is None or len(servers) == 0:
                    last_vm = Vm.get_last_vm(cloud=cloud)
                    if last_vm is None:
                        Console.error(
                            "No VM records in database. Please run vm refresh."
                        )
                        return ""
                    name = last_vm["name"]
                    # print(name)
                    servers = list()
                    servers.append(name)

                group = arguments["--group"]
                force = arguments["--force"]

                # if default cloud not set, return error
                if not cloud:
                    Console.error("Default cloud not set.")
                    return ""
                Vm.start(cloud=cloud, servers=servers)

                msg = "info. OK."
                Console.ok(msg)
            except Exception as e:
                Error.traceback(e)
                Console.error("Problem starting instances")

        elif arguments["stop"]:
            try:
                servers = arguments["NAME"]

                # If names not provided, take the last vm from DB.
                if servers is None or len(servers) == 0:
                    last_vm = Vm.get_last_vm(cloud=cloud)
                    if last_vm is None:
                        Console.error(
                            "No VM records in database. Please run vm refresh."
                        )
                        return ""
                    name = last_vm["name"]
                    # print(name)
                    servers = list()
                    servers.append(name)

                group = arguments["--group"]
                force = arguments["--force"]

                # if default cloud not set, return error
                if not cloud:
                    Console.error("Default cloud not set.")
                    return ""

                Vm.stop(cloud=cloud, servers=servers)

                msg = "info. OK."
                Console.ok(msg)
            except Exception as e:
                Error.traceback(e)
                Console.error("Problem stopping instances")

        elif arguments["refresh"]:

            _refresh()

        elif arguments["delete"]:
            try:
                servers = arguments["NAME"]

                # If names not provided, take the last vm from DB.
                if servers is None or len(servers) == 0:
                    last_vm = Vm.get_last_vm(cloud=cloud)
                    if last_vm is None:
                        Console.error(
                            "No VM records in database. Please run vm refresh."
                        )
                        return ""
                    name = last_vm["name"]
                    servers = list()
                    servers.append(name)

                group = arguments["--group"]
                force = arguments["--force"]

                # if default cloud not set, return error
                if not cloud:
                    Console.error("Default cloud not set.")
                    return ""

                Vm.delete(cloud=cloud, servers=servers)

                msg = "info. OK."
                Console.ok(msg)
            except Exception as e:
                Error.traceback(e)
                Console.error("Problem deleting instances")

        elif arguments["ip"] and arguments["assign"]:
            vmids = arguments["NAME"]

            # If names not provided, take the last vm from DB.
            if vmids is None or len(vmids) == 0:
                last_vm = Vm.get_last_vm(cloud=cloud)
                if last_vm is None:
                    Console.error(
                        "No VM records in database. Please run vm refresh.")
                    return ""
                name = last_vm["name"]
                vmids = list()
                vmids.append(name)

            # if default cloud not set, return error
            if not cloud:
                Console.error("Default cloud not set.")
                return ""
            try:
                cloud_provider = CloudProvider(cloud).provider
                for sname in vmids:
                    floating_ip = cloud_provider.create_assign_floating_ip(
                        sname)
                    if floating_ip is not None:
                        print(
                            "Floating IP assigned to {:} successfully and it is: {:}"
                            .format(sname, floating_ip))
                msg = "info. OK."
                Console.ok(msg)
            except Exception as e:
                Error.traceback(e)
                Console.error("Problem assigning floating ips.")

        elif arguments["ip"] and arguments["show"]:
            vmids = arguments["NAME"]

            # If names not provided, take the last vm from DB.
            if vmids is None or len(vmids) == 0:
                last_vm = Vm.get_last_vm(cloud=cloud)
                if last_vm is None:
                    Console.error(
                        "No VM records in database. Please run vm refresh.")
                    return ""
                name = last_vm["name"]
                vmids = list()
                vmids.append(name)

            group = arguments["--group"]
            output_format = arguments["--format"] or "table"
            refresh = arguments["--refresh"]

            # if default cloud not set, return error
            if not cloud:
                Console.error("Default cloud not set.")
                return ""

            try:
                cloud_provider = CloudProvider(cloud).provider
                for server in vmids:
                    ip_addr = cloud_provider.get_ips(server)

                    ipaddr_dict = Vm.construct_ip_dict(ip_addr, cloud)

                    print(
                        "IP Addresses of instance {:} are as follows:-".format(
                            server))
                    print(_print_dict_ip(ipaddr_dict, format=output_format))
                msg = "info. OK."
                Console.ok(msg)
            except Exception as e:
                Error.traceback(e)
                Console.error(
                    "Problem getting ip addresses for instance {:}".format(id))

        elif arguments["login"]:
            vm_names = arguments["NAME"]

            # If names not provided, take the last vm from DB.
            if vm_names is None or len(vm_names) == 0:
                last_vm = Vm.get_last_vm(cloud=cloud)
                if last_vm is None:
                    Console.error(
                        "No VM records in database. Please run vm refresh.")
                    return ""
                name = last_vm["name"]
            else:
                name = vm_names[0]

            print("Logging in into {:} machine...".format(name))

            user = arguments["--user"]

            # Get user if user argument not specified.
            if user is None:
                user_from_db = Vm.get_vm_login_user(name, cloud)
                user_suggest = user_from_db or getpass.getuser()
                user = input("Enter the user to login (Default: {}):".format(
                    user_suggest)) or user_suggest
                Vm.set_vm_login_user(name, cloud, user)

            ip = arguments["--ip"]
            commands = arguments["--command"]

            # if default cloud not set, return error
            if not cloud:
                Console.error("Default cloud not set.")
                return ""

            key = arguments["--key"] or Default.get("login_key",
                                                    category=cloud)
            if not key:
                Console.error("Default login_key not set.")
                return ""

            cloud_provider = CloudProvider(cloud).provider
            # print("Name : {:}".format(name))
            ip_addr = cloud_provider.get_ips(name)

            ip_addresses = []
            ipaddr_dict = Vm.construct_ip_dict(ip_addr, cloud)
            for entry in ipaddr_dict:
                ip_addresses.append(ipaddr_dict[entry]["addr"])

            if ip is not None:
                if ip not in ip_addresses:
                    print(
                        "ERROR: IP Address specified does not match with the host."
                    )
                    return ""
            else:
                print("Determining IP Address to use with a ping test.")
                # This part assumes that the ping is allowed to the machine.
                for ipadd in ip_addresses:
                    print("Checking {:}...".format(ipadd))
                    try:
                        socket.gethostbyaddr(ipadd)
                        # ip will be set if above command is successful.
                        ip = ipadd
                    except socket.herror:
                        print("Cannot reach {:}.".format(ipadd))

            if ip is None:
                print("SORRY. Unable to connect to the machine")
                return ""
            else:
                print("IP to be used is: {:}".format(ip))

            SecGroup.enable_ssh(cloud=cloud)
            # print("COMMANDS : {:}".format(commands))

            # Constructing the ssh command to connect to the machine.
            sshcommand = "ssh"
            if key is not None:
                sshcommand += " -i {:}".format(key)
            sshcommand += " -o StrictHostKeyChecking=no"
            sshcommand += " {:}@{:}".format(user, ip)
            if commands is not None:
                sshcommand += " \"{:}\"".format(commands)

            # print(sshcommand)
            os.system(sshcommand)

        elif arguments["list"]:

            if arguments["--all"]:
                try:
                    _format = arguments["--format"] or "table"
                    d = ConfigDict("cloudmesh.yaml")
                    for cloud in d["cloudmesh"]["clouds"]:

                        if arguments["--refresh"] or Default.refresh():
                            _refresh()

                        print("Listing VMs on Cloud: {:}".format(cloud))
                        result = Vm.list(cloud=cloud, output_format=_format)
                        if result is not None:
                            print(result)
                        else:
                            print(
                                "Sorry. No data found with requested parameters in DB."
                            )
                    msg = "info. OK."
                    Console.ok(msg)
                except Exception as e:
                    Error.traceback(e)
                    Console.error("Problem listing all instances")
            else:

                # if default cloud not set, return error
                if not cloud:
                    Console.error("Default cloud not set.")
                    return ""

                try:
                    name_or_id = arguments["NAME_OR_ID"]
                    group = arguments["--group"]
                    _format = arguments["--format"] or "table"

                    # list_vms_on_cloud(cloud, group, _format)
                    if arguments["--refresh"] or Default.refresh():
                        _refresh()

                    result = Vm.list(name_or_id=name_or_id,
                                     cloud=cloud,
                                     output_format=_format)

                    if result is not None:
                        print(result)
                    else:
                        print("No data found with the requested parameters.")

                    msg = "info. OK."
                    Console.ok(msg)

                except Exception as e:
                    Error.traceback(e)
                    Console.error(
                        "Problem listing instances on cloud {:}".format(cloud))

        elif arguments["rename"]:
            try:
                servers = arguments["NAME"]

                # If names not provided, take the last vm from DB.
                if servers is None or len(servers) == 0:
                    last_vm = Vm.get_last_vm(cloud=cloud)
                    if last_vm is None:
                        Console.error(
                            "No VM records in database. Please run vm refresh."
                        )
                        return ""
                    name = last_vm["name"]
                    servers = list()
                    servers.append(name)

                # if default cloud not set, return error
                if not cloud:
                    Console.error("Default cloud not set.")
                    return ""

                new_name = arguments["--new"]
                is_name_provided = True

                # If the new name is not provided, make the new new name in format username-count.
                if new_name is None or len(new_name) == 0:

                    is_name_provided = False

                    count = Counter.get()
                    prefix = Username()

                    if prefix is None or count is None:
                        Console.error(
                            "Prefix and Count could not be retrieved correctly."
                        )
                        return

                    # BUG THE Z FILL SHOULD BE detected from yaml file
                    new_name = prefix + "-" + str(count).zfill(3)

                Vm.rename(cloud=cloud, servers=servers, new_name=new_name)

                if is_name_provided is False:
                    # Incrementing count
                    Counter.incr()

                msg = "info. OK."
                Console.ok(msg)
            except Exception as e:
                Error.traceback(e)
                Console.error("Problem deleting instances")

        return ""
Пример #10
0
    def do_vm(self, args, arguments):
        """
        ::

            Usage:
                vm default [--cloud=CLOUD][--format=FORMAT]
                vm refresh [--cloud=CLOUD]
                vm boot [--name=NAME]
                        [--cloud=CLOUD]
                        [--image=IMAGE_OR_ID]
                        [--flavor=FLAVOR_OR_ID]
                        [--group=GROUP]
                        [--secgroup=SECGROUP]
                        [--keypair_name=KEYPAIR_NAME]
                vm start NAME...
                         [--group=GROUP]
                         [--cloud=CLOUD]
                         [--force]
                vm stop NAME...
                        [--group=GROUP]
                        [--cloud=CLOUD]
                        [--force]
                vm delete NAME...
                          [--group=GROUP]
                          [--cloud=CLOUD]
                          [--force]
                vm floating_ip_assign NAME...
                                      [--cloud=CLOUD]
                vm ip_show NAME...
                           [--group=GROUP]
                           [--cloud=CLOUD]
                           [--format=FORMAT]
                           [--refresh]
                vm login NAME [--user=USER]
                         [--ip=IP]
                         [--cloud=CLOUD]
                         [--key=KEY]
                         [--command=COMMAND]
                vm list [NAME_OR_ID]
                        [--cloud=CLOUD|--all]
                        [--group=GROUP]
                        [--format=FORMAT]
                vm status [--cloud=CLOUD]

            Arguments:
                COMMAND        positional arguments, the commands you want to
                               execute on the server(e.g. ls -a) separated by ';',
                               you will get a return of executing result instead of login to
                               the server, note that type in -- is suggested before
                               you input the commands
                NAME           server name
                NAME_OR_ID     server name or ID
                KEYPAIR_NAME   Name of the openstack keypair to be used to create VM. Note this is not a path to key.

            Options:
                --ip=IP          give the public ip of the server
                --cloud=CLOUD    give a cloud to work on, if not given, selected
                                 or default cloud will be used
                --count=COUNT    give the number of servers to start
                --detail         for table print format, a brief version
                                 is used as default, use this flag to print
                                 detailed table
                --flavor=FLAVOR_OR_ID  give the name or id of the flavor
                --group=GROUP          give the group name of server
                --secgroup=SECGROUP    security group name for the server
                --image=IMAGE_OR_ID    give the name or id of the image
                --key=KEY        specify a key to use, input a string which
                                 is the full path to the private key file
                --keypair_name=KEYPAIR_NAME   Name of the openstack keypair to be used to create VM.
                                              Note this is not a path to key.
                --user=USER      give the user name of the server that you want
                                 to use to login
                --name=NAME      give the name of the virtual machine
                --force          delete vms without user's confirmation
                --command=COMMAND
                                 specify the commands to be executed



            Description:
                commands used to boot, start or delete servers of a cloud

                vm default [options...]     Displays default parameters that are set for VM boot.
                vm boot [options...]        Boots servers on a cloud, user may specify
                                            flavor, image .etc, otherwise default values
                                            will be used, see how to set default values
                                            of a cloud: cloud help
                vm start [options...]       Starts a suspended or stopped vm instance.
                vm stop [options...]        Stops a vm instance .
                vm delete [options...]      delete servers of a cloud, user may delete
                                            a server by its name or id, delete servers
                                            of a group or servers of a cloud, give prefix
                                            and/or range to find servers by their names.
                                            Or user may specify more options to narrow
                                            the search
                vm floating_ip_assign [options...]   assign a public ip to a VM of a cloud
                vm ip_show [options...]     show the ips of VMs
                vm login [options...]       login to a server or execute commands on it
                vm list [options...]        same as command "list vm", please refer to it
                vm status [options...]      Retrieves status of last VM booted on cloud and displays it.

            Tip:
                give the VM name, but in a hostlist style, which is very
                convenient when you need a range of VMs e.g. sample[1-3]
                => ['sample1', 'sample2', 'sample3']
                sample[1-3,18] => ['sample1', 'sample2', 'sample3', 'sample18']

        """

        def _print_dict(d, header=None, format='table'):
            if format == "json":
                return json.dumps(d, indent=4)
            elif format == "yaml":
                return pyaml.dump(d)
            elif format == "table":
                return dict_printer(d,
                                    order=["id",
                                           "name",
                                           "status"],
                                    output="table",
                                    sort_keys=True)
            else:
                return d

        def _print_dict_ip(d, header=None, format='table'):
            if format == "json":
                return json.dumps(d, indent=4)
            elif format == "yaml":
                return pyaml.dump(d)
            elif format == "table":
                return dict_printer(d,
                                    order=["network",
                                           "version",
                                           "addr"],
                                    output="table",
                                    sort_keys=True)
            else:
                return d

        """
        def list_vms_on_cloud(cloud="juno", group=None, format="table"):

            Utility reusable function to list vms on the cloud.
            :param cloud:
            :param group:
            :param format:
            :return:

            _cloud = cloud
            _group = group
            _format = format

            cloud_provider = CloudProvider(_cloud).provider
            servers = cloud_provider.list_vm(_cloud)


            server_list = {}
            index = 0
            # TODO: Improve the implementation to display more fields if required.
            for server in servers:
                server_list[index] = {}
                server_list[index]["name"] = server.name
                server_list[index]["id"] = server.id
                server_list[index]["status"] = server.status
                index += 1


            # TODO: Get this printed in a table
            print("Print table")
            dict_printer(servers, output=_format)
        """

        # pprint(arguments)

        cloud = arguments["--cloud"] or Default.get_cloud()

        if arguments["boot"]:
            name = None
            try:
                name = arguments["--name"]
                is_name_provided = True

                if name is None:
                    is_name_provided = False

                    prefix, count = Counter.get()

                    if prefix is None or count is None:
                        Console.error("Prefix and Count could not be retrieved correctly.")
                        return

                    name = prefix + "-" + str(count).zfill(3)

                # if default cloud not set, return error
                if not cloud:
                    Console.error("Default cloud not set.")
                    return ""

                image = arguments["--image"] or Default.get("image", cloud=cloud)
                # if default image not set, return error
                if not image:
                    Console.error("Default image not set.")
                    return ""

                flavor = arguments["--flavor"] or Default.get("flavor", cloud=cloud)
                # if default flavor not set, return error
                if not flavor:
                    Console.error("Default flavor not set.")
                    return ""

                group = arguments["--group"] or \
                    Default.get("group", cloud=cloud)
                # if default group not set, return error
                if not group:
                    Console.error("Default group not set.")
                    return ""

                secgroup = arguments["--secgroup"] or Default.get("secgroup", cloud=cloud)
                # print("SecurityGrp : {:}".format(secgroup))
                secgroup_list = ["default"]
                if secgroup is not None:
                    secgroup_list.append(secgroup)

                key_name = arguments["--keypair_name"] or Default.get("keypair", cloud=cloud)
                # if default keypair not set, return error
                if not key_name:
                    Console.error("Default keypair not set.")
                    return ""

                vm_id = Vm.boot(cloud=cloud, name=name, image=image,
                                flavor=flavor, key_name=key_name,
                                secgroup_list=secgroup_list)

                if is_name_provided is False:
                    # Incrementing count
                    Counter.incr()

                # Add to group
                Group.add(name=group, type="vm", id=vm_id, cloud=cloud)
                msg = "info. OK."
                Console.ok(msg)

            except Exception, e:
                import traceback
                print(traceback.format_exc())
                print(e)
                Console.error("Problem booting instance {:}".format(name))
Пример #11
0
    def do_group(self, args, arguments):
        """
        ::

            Usage:
                group add NAME [--type=TYPE] [--category=CLOUD] --id=IDs
                group list [--category=CLOUD] [--format=FORMAT] [NAME]
                group delete NAME [--category=CLOUD]
                group remove [--category=CLOUD] --name=NAME --id=ID
                group copy FROM TO
                group merge GROUPA GROUPB MERGEDGROUP

            manage the groups

            Arguments:

                NAME         name of a group
                FROM         name of a group
                TO           name of a group
                GROUPA       name of a group
                GROUPB       name of a group
                MERGEDGROUP  name of a group

            Options:
                --category=CLOUD       the name of the category
                --format=FORMAT     the output format
                --type=TYPE         the resource type
                --name=NAME         the name of the group
                --id=IDS            the ID(s) to add to the group


            Description:

                Todo: design parameters that are useful and match
                description
                Todo: discuss and propose command

                cloudmesh can manage groups of resources and category related
                objects. As it would be cumbersome to for example delete
                many virtual machines or delete VMs that are in the same
                group, but are running in different clouds.

                Hence it is possible to add a virtual machine to a
                specific group. The group name to be added to can be set
                as a default. This way all subsequent commands use this
                default group. It can also be set via a command parameter.
                Another convenience function is that the group command can
                use the last used virtual machine. If a vm is started it
                will be automatically added to the default group if it is set.

                The delete command has an optional category parameter so that
                deletion of vms of a partial group by cloud can be
                achieved.

                If finer grained deletion is needed, it can be achieved
                with the delete command that supports deletion by name

                It is also possible to remove a VM from the group using the
                remove command, by supplying the ID

            Example:
                default group mygroup

                group add --type=vm --id=albert-[001-003]
                    adds the vms with teh given name using the Parameter
                    see base

                group add --type=vm
                 adds the last vm to the group

                group delete --name=mygroup
                    deletes all objects in the group
        """
        # pprint(arguments)

        category = arguments["--category"] or Default.get_cloud()

        if arguments["list"]:

            output = arguments["--format"] or Default.get("format", category) or "table"
            name = arguments["NAME"]

            if name is None:

                result = Group.list(format=output, category=category)
                if result:
                    print(result)
                else:
                    print("There are no groups in the cloudmesh database!")

            else:

                result = Group.get_info(name=name, category=category,
                                        output=output)

                if result:
                    print(result)
                else:
                    msg_a = ("No group found with name `{name}` found in the "
                             "category `{category}`.".format(**locals()))

                    # find alternate
                    result = Group.get(name=name)
                    msg_b = ""
                    if result is not None:
                        msg_b = " However we found such a variable in " \
                                "category `{category}`. Please consider " \
                                "using --category={category}".format(**result)
                        Console.error(msg_a + msg_b)

                return

        elif arguments["add"]:
            type = arguments["--type"] or Default.get("type", category)

            category_id = arguments["--id"] or Default.get("id", category)

            data = {
                "name": arguments["NAME"],
                "type": type,
                "category": category,
                "id": category_id
            }

            Group.add(**data)
            return

        elif arguments["delete"]:
            data = {
                "name": arguments["NAME"],
                "category": category,
            }

            result = Group.delete(**data)
            if result:
                Console.ok("Deletion completed. ok.")
            else:
                Console.error(
                    "No group with name `{name}` found".format(**data))
            return

        elif arguments["remove"]:
            name = arguments["--name"]
            category_id = arguments["--id"]

            if not category:
                Console.error("Default category not set!")
                return

            result = Group.remove(name, category_id, category)
            if result:
                Console.ok(result)
            else:
                Console.error(
                    "Failed to delete ID [{}] from group [{}] in the database!".format(
                        category_id, name))
            return

        elif arguments["copy"]:
            _from = arguments["FROM"]
            _to = arguments["TO"]

            Group.copy(_from, _to)
            return

        elif arguments["merge"]:
            _groupA = arguments["GROUPA"]
            _groupB = arguments["GROUPB"]
            _mergedGroup = arguments["MERGEDGROUP"]

            Group.merge(_groupA, _groupB, _mergedGroup)
            return
Пример #12
0
    def do_group(self, args, arguments):
        """
        ::

            Usage:
                group list [GROUPNAME] [--format=FORMAT]
                group remove NAMES [--group=GROUPNAME]
                group add NAMES [--type=TYPE] [--group=GROUPNAME]
                group delete GROUPS
                group copy FROM TO
                group merge GROUPA GROUPB MERGEDGROUP

            manage the groups

            Arguments:

                NAMES        names of object to be added
                GROUPS       names of a groups
                FROM         name of a group
                TO           name of a group
                GROUPA       name of a group
                GROUPB       name of a group
                MERGEDGROUP  name of a group

            Options:
                --format=FORMAT     the output format
                --type=TYPE         the resource type
                --name=NAME         the name of the group
                --id=IDS            the ID(s) to add to the group


            Description:

                Todo: design parameters that are useful and match
                description
                Todo: discuss and propose command

                cloudmesh can manage groups of resource related
                objects. As it would be cumbersome to for example delete
                many virtual machines or delete VMs that are in the same
                group, but are running in different clouds.

                Hence it is possible to add a virtual machine to a
                specific group. The group name to be added to can be set
                as a default. This way all subsequent commands use this
                default group. It can also be set via a command parameter.
                Another convenience function is that the group command can
                use the last used virtual machine. If a vm is started it
                will be automatically added to the default group if it is set.

                If finer grained deletion is needed, it can be achieved
                with the delete command that supports deletion by name

                It is also possible to remove a VM from the group using the
                remove command, by supplying the ID

            Note:

                The type is internally called for the group species, we may
                eliminate the species column and just use the type column for it,

            Example:
                default group mygroup

                group add --type=vm --id=albert-[001-003]
                    adds the vms with the given name using the Parameter
                    see base

                group add --type=vm
                 adds the last vm to the group

                group delete --name=mygroup
                    deletes all objects in the group
        """
        # pprint(arguments)


        if arguments["list"]:

            output = arguments["--format"] or Default.get(name="format", category="general") or "table"
            name = arguments["GROUPNAME"]
            if name is None:

                result = Group.list(output=output)
                if result:
                    print(result)
                else:
                    print("No groups found other than the default group but it has no members.")

            else:

                result = Group.list(name=name,
                                    output=output)

                if result:
                    print(result)
                else:
                    msg_a = ("No group found with name `{name}` found in the "
                             "category `{category}`.".format(**locals()))

                '''
                    # find alternate
                    result = Group.get(name=name)

                    msg_b = ""
                    if result is not None and len(result) < 0:
                        msg_b = " However we found such a variable in " \
                                "category `{category}`. Please consider " \
                                "using --category={category}".format(**locals())
                        Console.error(msg_a + msg_b)
                    else:
                        Console.error("No group with name {name} exists.".format(**locals()))
                '''

                return ""

        elif arguments["add"]:
            # group add NAME... [--type=TYPE] [--category=CLOUD] [--group=GROUP]

            print ("AAA", arguments["NAMES"])
            members = Parameter.expand(arguments["NAMES"])
            print ("MMMM", members)
            data = dotdict({
                "species": arguments["--type"] or "vm",
                "name": arguments["--group"] or Default.group
            })
            print ("DDD", data)
            for member in members:
                data.member = member
                pprint(data)
                Group.add(**data)

            return ""

        elif arguments["delete"]:
            groups = Parameter.expand(arguments["GROUPS"])

            for group in groups:
                result = Group.delete(group)

                if result:
                    Console.ok(result)
                else:
                    Console.error(
                        "delete group {}. failed.".format(group))
            return ""

        elif arguments["remove"]:
            members = Parameter.expand(arguments["NAMES"])

            group = arguments["--group"] or Default.group

            for member in members:
                result = Group.remove(group, member)

                if result:
                    Console.ok(result)
                else:
                    Console.error(
                        "remove {} from group {}. failed.".format(group, member))
            return ""

        elif arguments["copy"]:
            _from = arguments["FROM"]
            _to = arguments["TO"]

            Group.copy(_from, _to)
            return ""

        elif arguments["merge"]:
            _groupA = arguments["GROUPA"]
            _groupB = arguments["GROUPB"]
            _mergedGroup = arguments["MERGEDGROUP"]

            Group.merge(_groupA, _groupB, _mergedGroup)
            return ""