def print_ssh_table(output):
            content = read(filename="~/.ssh/config").split("\n")

            entries = [
            ]

            def empty():
                return {
                    "host": None,
                    "hostname": None,
                    "user": None,
                    "proxycommand": None,
                    "serveraliveinterval": None,
                    "localforward": None,
                    "forwardx11": None
                }

            entry = empty()
            for line in content:
                line = line.strip()
                if line.startswith("#"):
                    pass
                elif line.strip() == "":
                    pass
                elif "Host " in line:
                    hostname = line.strip().split("Host")[1]
                    entry["host"] = hostname.strip()
                    if entry is not None:
                        entries.append(entry)
                    entry = empty()
                else:
                    attribute, value = line.strip().split(" ", 1)
                    entry[attribute.lower()] = value.strip()

            # pprint(entries)
            order = ["host",
                     "hostname",
                     "user",
                     "proxycommand",
                     "serveraliveinterval",
                     "localforward",
                     "forwardx11"]

            print(Printer.list(entries, order=order))
        def print_ssh_table(output):
            content = read(filename="~/.ssh/config").split("\n")

            entries = []

            def empty():
                return {
                    "host": None,
                    "hostname": None,
                    "user": None,
                    "proxycommand": None,
                    "serveraliveinterval": None,
                    "localforward": None,
                    "forwardx11": None
                }

            entry = empty()
            for line in content:
                line = line.strip()
                if line.startswith("#"):
                    pass
                elif line.strip() == "":
                    pass
                elif "Host " in line:
                    hostname = line.strip().split("Host")[1]
                    entry["host"] = hostname.strip()
                    if entry is not None:
                        entries.append(entry)
                    entry = empty()
                else:
                    attribute, value = line.strip().split(" ", 1)
                    entry[attribute.lower()] = value.strip()

            # pprint(entries)
            order = [
                "host", "hostname", "user", "proxycommand",
                "serveraliveinterval", "localforward", "forwardx11"
            ]

            print(Printer.list(entries, order=order))
    def do_cluster(self, args, arguments):
        """
        ::

          Usage:
              cluster list [--format=FORMAT]
              cluster list NAME
                           [--format=FORMAT]
                           [--column=COLUMN]
                           [--short]
              cluster create NAME
                             [--count=COUNT]
                             [--login=USERNAME]
                             [--cloud=CLOUD]
                             [--image=IMAGE]
                             [--flavor=FLAVOR]
                             [--add]
              cluster delete NAME
              cluster setup NAME [--username]
              cluster inventory NAME

          Description:
              with the help of the cluster command you can create a number
              of virtual machines that are integrated in a named virtual cluster.
              You will be able to login between the nodes of the virtual cluster
              while using public keys.

              cluster setup NAME
                sets up the keys between the cluster node as well as the machine that
                executes the cm command

              cluster inventory NAME
                creates an inventory.txt file to be used by ansible in the current directory

              cluster create NAME
                 creates the virtual machines used for the cluster

              cluster list NAME
                 lists selected details of the vms for the cluster

              cluster delete NAME
                  remove the cluster and its VMs

          Examples:
              cluster list
                  list the clusters

              cluster create NAME --count=COUNT --login=USERNAME [options...]
                  Start a cluster of VMs, and each of them can log into each other.
                  CAUTION: you should specify defaults before using this command:
                  1. select cloud to work on, e.g. cloud select kilo
                       default cloud=kilo
                  2. test if you can create a single VM on the cloud to see if
                     everything is set up
                  3. set the default key to start VMs, e.g. key default [USERNAME-key]
                  5. set image of VMs, e.g. default image
                  6. set flavor of VMs, e.g. default flavor
                  7. Make sure to use a new unused group name

          Arguments:
              NAME              cluster name or group name

          Options:
              --count=COUNT     give the number of VMs to add into the cluster
              --login=USERNAME  give a login name for the VMs, e.g. ubuntu
              --cloud=CLOUD     give a cloud to work on
              --flavor=FLAVOR   give the name of the flavor or flavor id
              --image=IMAGE     give the name of the image or image id
              --add             if a group exists and there are VMs in it
                                additional vms will be added to this cluster and the
                                keys will be added to each other so one can login between
                                them
              FORMAT            output format: table, json, csv
              COLUMN            customize what information to display, for example:
                                --column=status,addresses prints the columns status
                                and addresses
              --detail          for table print format, a brief version
                                is used as default, use this flag to print
                                detailed table

        """

        def get_vms(group_name):
            groups = Vm.get_vms_by_group(group_name)
            vms = []
            for group in groups:
                name = group["member"]
                print(name)
                vm = Vm.get_vm(name)
                vm['cluster'] = group_name
                vms.append(vm)
            return vms

        def _print(f):
                print (f)

        def write(filename, msg):
            with open(path_expand(filename), 'w') as f:
                output = f.write(msg)

        arg = dotdict(arguments)

        arg.format = arguments["--format"] or "table"
        arg.count = int(arguments["--count"] or 1)
        arg.username = arguments["--login"]
        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.add = arguments["--add"]
        arg.group = arg.NAME
        arg.name = None
        arg.key = Default.key
        arg.secgroup = Default.secgroup
        arg.group = arg.NAME
        arg.short = arguments["--short"]

        if arg.create:

            boot_from_args(arg)

        elif arg.inventory:

            group = Vm.get_vms_by_group(arg.group)

            result = ""
            if arg.format is "table":
                result = "[servers]\n"

            for element in group:
                name = element["member"]
                vm = Vm.get_vm(name)[0]
                vm['cluster'] = arg.group
                result += "{floating_ip}\n".format(**vm)

            Console.ok("Writing ips to inventory.txt")
            print(result)

            write("inventory.txt", result)

            Console.ok(".ok")
            return ""


        elif arg.list and arg.NAME is not None:

            if arg.short:

                vms = Vm.get_vms_by_group(arg.group)

                if vms is None:
                    Console.error("no vms found for {}".format(arg.group))
                else:

                    print(Printer.list(vms,
                               header=['Group', 'Vm'],
                               order=['name', 'member'],
                               output=arg.format))

            else:

                groups = Vm.get_vms_by_group(arg.group)

                pprint(groups)

                vms = []
                for group in groups:
                    name = group["member"]
                    vm = Vm.get_vm(name)[0]
                    vm['cluster'] = arg.group
                    if vm is not None:
                        vms.append(vm)

                pprint(vms)


                if vms is None:
                    Console.error("no vms found for {}".format(arg.group))
                else:

                    print(Printer.list(vms,
                                   order=['name', 'cluster', 'flavor', 'image', 'status', 'user_id', 'floating_ip'],
                                   output=arg.format))
            return ""

        elif arg.setup:

            def push(from_path, vm):
                vm.ip = vm.floating_ip
                if vm.ip is not None:
                    if arg.verbose:
                        Console.info("Connecting to Instance at IP:" + format(vm.ip))

                    sshcommand = "scp"
                    sshcommand += " -o StrictHostKeyChecking=no"
                    sshcommand += " {:}".format(from_path)
                    sshcommand += " {username}@{ip}:.ssh/authorized_keys".format(**vm)

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


            groups = Vm.get_vms_by_group(arg.group)

            pprint (groups)

            vms = []
            for group in groups:
                name = group["member"]
                vm = Vm.get_vm(name)[0]
                vm['cluster'] = arg.group
                if vm is not None:
                    vms.append(vm)

            pprint(vms)

            if vms is None:
                Console.error("no vms found for {}".format(arg.group))
            else:

                print(Printer.list(vms,
                           order=['name', 'cluster', 'flavor', 'image', 'status', 'user_id', 'floating_ip'],
                           output=arg.format))

                keys = ""
                for vm in vms:
                    vm = dotdict(vm)
                    cloud = vm.category

                    if vm.username is None:
                        vm.username = arguments["--username"] or Image.guess_username(arg.image)



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


                    print ("C", chameleon)

                    if chameleon:
                        vm.username = "******"
                    elif vm.category == "azure":
                        vm.username = ConfigDict(filename="cloudmesh.yaml")["cloudmesh"]["clouds"]["azure"]["default"][
                        "username"]
                    else:
                        if vm.username is None:
                            Console.error("Could not guess the username of the vm", traceflag=False)
                            return


                    Vm.set_login_user(name=vm.name, cloud=vm.category, username=vm.username)
                    vm.ip = vm.floating_ip


                    def execute(commands):
                        if vm.ip is not None:
                            if arg.verbose:
                                Console.info("Connecting to Instance at IP:" + format(vm.ip))

                            sshcommand = "ssh"
                            if arg.key is not None:
                                sshcommand += " -i {:}".format(arg.key)
                            sshcommand += " -o StrictHostKeyChecking=no"
                            sshcommand += " {username}@{ip}".format(**vm)
                            sshcommand += " \'{:}\'".format(commands)

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

                    def copy(commands):
                        if vm.ip is not None:
                            if arg.verbose:
                                Console.info("Connecting to Instance at IP:" + format(vm.ip))

                            sshcommand = "scp"
                            sshcommand += " -o StrictHostKeyChecking=no"
                            sshcommand += " {username}@{ip}".format(**vm)
                            sshcommand += ":{:}".format(commands)

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


                    def cat(filename):
                        with open(path_expand(filename), 'r') as f:
                            output = f.read()
                        return output



                    execute('cat /dev/zero | ssh-keygen -q -N ""')
                    copy(".ssh/id_rsa.pub ~/.ssh/id_rsa_{name}.pub".format(**vm))

                    output = "~/.ssh/id_rsa_{name}.pub".format(**vm)

                    keys = keys + cat(output)

                print ("WRITE KEYS")
                keys = keys + cat("~/.ssh/id_rsa.pub")
                output = "~/.ssh/id_rsa_{group}.pub".format(**arg)
                write(output, keys)

                print("PUSH KEYS")
                for vm in vms:
                    vm = dotdict(vm)
                    push("~/.ssh/id_rsa_{group}.pub".format(**arg), vm)

        return ""
Exemple #4
0
    def do_register(self, args, arguments):
        """
        ::

          Usage:
              register info
              register backup
              register new [--force] [--dryrun]
              register clean [--force]
              register list ssh [--format=FORMAT]
              register list [--yaml=FILENAME][--info][--format=FORMAT]
              register cat [--yaml=FILENAME]
              register edit [--yaml=FILENAME]
              register user [USERNAME]
              register cloud [CLOUD] [--force]
              register remote [CLOUD] [--force]
              register export HOST [--password] [--format=FORMAT]
              register source HOST
              register merge FILEPATH
              register form [--yaml=FILENAME]
              register check [--yaml=FILENAME]
              register test [--yaml=FILENAME]
              register json HOST
              register env [--provider=PROVIDER]
              register ec2 CLOUD EC2ZIP
              register ENTRY

          managing the registered clouds in the cloudmesh.yaml file.
          It looks for it in the current directory, and than in
          ~/.cloudmesh.  If the file with the cloudmesh.yaml name is
          there it will use it.  If neither location has one a new
          file will be created in ~/.cloudmesh/cloudmesh.yaml. Some
          defaults will be provided.  However you will still need to
          fill it out with valid entries.

          Arguments:

            HOST   the host name
            USER   the user name
            FILEPATH the path of the file
            CLOUD the cloud name
            PROVIDER the provider or type of cloud [Default: openstack]
            USERNAME  Username that would be registered in yaml. Defaults to OS username.

          Options:

            --provider=PROVIDER     Provider to be used for cloud. Values are:
                                    openstack, azure, ec2.
            --version=VERSION       Version of the openstack cloud.
            --openrc=OPENRC         The location of the openrc file
            --password              Prints the password
            --force                 ignore interactive questions and execute
                                    the action

          Description:

              register info
                  lists the clouds specified in the cloudmesh.yaml
                  file in the current directory, and then in ~/.cloudmesh

              register list [--yaml=FILENAME] [--name] [--info]
                  lists the clouds specified in the cloudmesh.yaml file. If
                  info is specified it also prints the location of the yaml
                  file.

              register list ssh
                  lists hosts from ~/.ssh/config

              register cat [--yaml=FILENAME]
                  outputs the cloudmesh.yaml file

              register edit [--yaml=FILENAME]
                  edits the cloudmesh.yaml file

              register export HOST [--format=FORMAT]

                    prints the contents of an openrc.sh file based on the
                    information found in the cloudmesh.yaml file.

              register remote CLOUD [--force]

                    reads the Openstack OPENRC file from a remote host that
                    is described in cloudmesh.yaml file. We assume that
                    the file has already a template for this host. If
                    not it can be created from other examples before
                    you run this command.

                    It uses the OS_OPENRC variable to locate the file and
                    copy it onto your computer.

              register merge FILENAME
                  Replaces the TBD in cloudmesh.yaml with the contents
                  present in the named file

              register form [--yaml=FILENAME]
                  interactively fills out the form wherever we find TBD.

              register check [--yaml=FILENAME]
                  checks the yaml file for completness

              register test [--yaml=FILENAME]
                  checks the yaml file and executes tests to check if
                  we can use the cloud. TODO: maybe this should be in
                  a test command

              register json host
                  displays the host details in json format

              register remote CLOUD
                  registers a remote cloud and copies the openrc file
                  specified in the credentials of the cloudmesh.yaml

              register CLOUD --dir
                  Copies the entire directory from the cloud and puts it in
                  ~/.cloudmesh/clouds/host
                  For kilo, The directory would be copied to
                  ~/.cloudmesh/clouds/kilo

              register env [--provider=PROVIDER] [HOSTNAME]
                  Reads env OS_* variables and registers a new cloud in yaml,
                  interactively. Default PROVIDER is openstack and HOSTNAME
                  is localhost.

              register user [USERNAME]
                  Sets the user in yaml with the value provided.
         """

        # from pprint import pprint
        # pprint(arguments)

        def _get_config_yaml_file(arguments):
            filename = arguments["--yaml"] or "cloudmesh.yaml"
            filename = Config.find_file(filename)
            return filename

        def exists(filename):
            return os.path.isfile(filename)

        def export(host, output):
            config = ConfigDict("cloudmesh.yaml")
            credentials = dict(
                config["cloudmesh"]["clouds"][host]["credentials"])

            if not arguments["--password"]:
                credentials["OS_PASSWORD"] = "******"

            if output is None:
                for attribute, value in credentials.items():
                    print("export {}={}".format(attribute, value))
            elif output == "table":
                print(Printer.attribute(credentials))
            else:
                print(Printer.write(credentials, output=output))
                # TODO: bug csv does not work

        if arguments["info"]:

            filename = _get_config_yaml_file(arguments)

            if os.path.isfile(filename):
                Console.ok("File '{}' exists. ok.".format(filename))

                Console.ok("The yaml file contains the following templates:")

                d = CloudRegister.list(filename,
                                       Default.cloud,
                                       info=False,
                                       output="table")
                print(d)

            else:
                Console.error("File {} does not exist".format(filename))

            return ""

        elif arguments["backup"]:

            name = backup_name("~/.cloudmesh/cloudmesh.yaml")
            configfile = path_expand("~/.cloudmesh/cloudmesh.yaml")
            print (name)
            try:
                copy(configfile, name)
                Console.ok("Bakup copy created: {}. ok.".format(name))
            except:
                Console.error("Could not create a backup copy from {}".format(configfile))

            return ""

        elif arguments["new"]:

            import shutil
            import cloudmesh_client.etc

            config = ConfigDict("cloudmesh.yaml")
            data = dotdict({
                'dir': cloudmesh_client.etc.__file__,
                'filename': os.path.join(
                    os.path.dirname(cloudmesh_client.etc.__file__),
                    "cloudmesh.yaml"),
                'yamlfile': path_expand("~/.cloudmesh/cloudmesh.yaml"),
                'dryrun': arguments['--dryrun']
            })
            Console.ok(data.filename)
            force = arguments["--force"]
            if not force:
                force = yn_choice("Would you like create a new configuration file at {}".format(data.yamlfile))
            if force:
                if not data.dryrun:
                    config.make_a_copy(location=data.yamlfile)
                    shutil.copyfile(data.filename, data.yamlfile)
                print("copy ")
                print("From: ", data.filename)
                print("To:   ", data.yamlfile)

            # filename = _get_config_yaml_file(arguments)
            # if _exists(filename):
            #    Console.ok("File '{}' exists. ok.".format(filename))
            # else:
            #    Console.error("File {} does not exist".format(filename))
            return ""

        elif arguments["clean"]:

            filename = _get_config_yaml_file(arguments)
            force = arguments["--force"] or False
            if filename is not None:
                print(filename, force)
                if exists(filename):
                    print("Delete cloudmesh.yaml file:", filename)
                    if not force:
                        force = yn_choice("Would you like to delete the "
                                          "cloudmesh.yaml file")
                        print(force)
                    if force:
                        os.remove(filename)
                        Console.ok("Deleted the file " + filename + ". ok.")
                    else:
                        Console.ok("Please use Y to delete the file.")
                    pass
                else:
                    Console.error("File {} does not exist".format(filename))
            else:
                Console.error("No cloudmesh.yaml file found.")
            return ""

        elif arguments["cat"]:

            filename = _get_config_yaml_file(arguments)
            if exists(filename):
                with open(filename, 'r') as f:
                    lines = f.read().split("\n")
                print('\n'.join(lines))
            else:
                Console.error("File {} does not exist".format(filename))
            return ""

        elif arguments["edit"]:

            filename = _get_config_yaml_file(arguments)
            if exists(filename):
                try:
                    data = {"editor": os.environ["EDITOR"],
                            "filename": filename}
                    Console.ok("editing file " + filename)
                    os.system("{editor} {filename}".format(**data))
                except:
                    Console.error("No operating system environment variable EDITOR set.", traceflag=False)
            else:
                Console.error("File {} does not exist".format(filename), traceflag=False)
            return ""

        elif arguments['list'] and arguments['ssh']:
            output = arguments['--format'] or 'table'
            hosts = CloudRegister.list_ssh()
            print(Printer.list(hosts, output=output))
            return ""

        elif arguments['list']:

            filename = _get_config_yaml_file(arguments)
            info = arguments["--info"] or False
            output = arguments["--format"] or "table"

            if not filename:
                Console.error("File {} doesn't exist".format(filename))
            else:
                d = CloudRegister.list(filename,
                                       Default.cloud,
                                       info=info,
                                       output=output)
                print(d)
            return ""

        elif arguments['check']:
            filename = _get_config_yaml_file(arguments)
            if not filename:
                Console.error("File {} doesn't exist".format(
                    arguments["--yaml"] or 'cloudmesh.yaml'))
            else:
                CloudRegister.check_yaml_for_completeness(filename)
            return ""

        elif arguments['merge']:
            filename = arguments['FILENAME']
            CloudRegister.from_file(filename)
            return ""

        elif arguments['test']:
            filename = _get_config_yaml_file(arguments)
            CloudRegister.test(filename)
            return ""

        elif arguments['form']:
            filename = _get_config_yaml_file(arguments)
            if not filename:
                Console.error("File {} doesn't exist".format(
                    arguments["--yaml"] or 'cloudmesh.yaml'))
            else:
                CloudRegister.fill_out_form(filename)
            return ""

        elif arguments['source']:

            host = arguments['HOST']
            config = ConfigDict("cloudmesh.yaml")
            credentials = dict(
                config["cloudmesh"]["clouds"][host]["credentials"])

            # unset

            variables = list(os.environ)
            for attribute in variables:
                if attribute.startswith("OS_"):
                    print("x ", attribute)
                    del os.environ[attribute]

            # set
            for attribute, value in credentials.items():
                os.putenv(attribute, value)
                print("+ ", attribute)
            export(host, "table")

            return ""

        elif arguments['export']:

            output = arguments['--format']
            host = arguments['HOST']
            try:
                variables = list(os.environ)
                for attribute in variables:
                    if attribute.startswith("OS_"):
                        print("unset ", attribute)
                        del os.environ[attribute]
                export(host, output)
            except:
                Console.error ("The export may not include all values", traceflag=False)
            return ""

        elif arguments['json']:
            host = arguments['HOST']
            result = CloudRegister.get(host)
            if result:
                print(json.dumps(result, indent=4))
            else:
                print("Cloud {:} is not described in cloudmesh.yaml".format(
                    host))
            return ""

        elif arguments['remote']:

            force = arguments['--force']
            cloud = arguments['CLOUD']

            if cloud is None:
                # clouds =  [ConfigDict(filename="cloudmesh.yaml")["cloudmesh"]["active"][0]]
                clouds = ["kilo"]  # hardcode to kilo for now

            else:
                clouds = [cloud]

            for cloud in clouds:
                CloudRegister.remote(cloud, force)
                export(cloud, "table")

            config = ConfigDict("cloudmesh.yaml")
            if config["cloudmesh.profile.user"] == "TBD":
                name = config["cloudmesh.clouds.kilo.credentials.OS_USERNAME"]
                config["cloudmesh"]["profile"]["user"] = name
                config.save()
            return ""

        elif arguments['ec2']:

            cloud = arguments['CLOUD']
            zipfile = arguments['EC2ZIP']

            if cloud is None:
                clouds = [ConfigDict(filename="cloudmesh.yaml")["cloudmesh"]["active"][0]]
            else:
                clouds = [cloud]

            for cloud in clouds:
                CloudRegister.ec2(cloud, zipfile)
                export(cloud, "table")

            return ""

        elif arguments['env']:
            try:
                CloudRegister.from_environ(arguments['--provider'])
            except Exception as e:
                Error.traceback(e)
            return ""

        elif arguments['cloud']:
            """
            if arguments['--dir']:
                cloud = arguments['--name']
                directory = arguments['--dir']
                Console.ok(directory)
                CloudRegister.directory(cloud, directory)

            else:
            """

            values_to_replace = ['tbd', 'null', 'tbd_not_used']

            cloud = arguments['CLOUD']
            if cloud is None:
                clouds = [ConfigDict(filename="cloudmesh.yaml")["cloudmesh"]["active"][0]]
            else:
                clouds = [cloud]

            for cloud in clouds:

                config = ConfigDict("cloudmesh.yaml")

                cloud_config = config["cloudmesh.clouds"][cloud]

                # Checking credentials
                print("Checking cloud credentials...")
                for prop in cloud_config["credentials"]:
                    if cloud_config["credentials"][prop].lower() in values_to_replace:
                        value = input(prop + "(" + cloud_config["credentials"][prop] + "): ")
                        cloud_config["credentials"][prop] = value
                # Checking defaults
                print("Checking cloud defaults...")
                for prop in cloud_config["default"]:
                    if cloud_config["default"][prop].lower() in values_to_replace:
                        value = input(prop + "(" + cloud_config["default"][prop] + "): ")
                        cloud_config["default"][prop] = value
                config.save()
                export(cloud, "table")
            return ""

        elif arguments['user']:
            username = arguments["USERNAME"] or getpass.getuser()
            CloudRegister.set_username(username)

            Console.ok("Setting profile user to {} in the yaml file.".format(username))

            hosts = ssh_config()

            hosts.generate(key="india", username=username, verbose=True)

            return ""

        elif arguments['ENTRY'].lower() in ['chameleon']:


            config = ConfigDict("cloudmesh.yaml")
            credentials = dotdict(config["cloudmesh.clouds.chameleon.credentials"])

            default = credentials.OS_USERNAME
            username = input("Please enter the username for {:} [{}]: ".format("chameleon",
                                                                               default))
            username = username or default

            while True:
                default = credentials.OS_PROJECT_NAME
                project = input("Please enter the project id for {:} [{}]: ".format("chameleon",
                                                                                   default))
                project = project or default

                if project.isdigit():
                    project = "CH-{}".format(project)
                    break
                else:
                    try:
                        prefix, number = project.split("-")
                        if not (prefix in ["CH"] and number.isdigit()):
                            Console.error("This is not a valid Chameleon.org cloud project", traceflag=False)
                        else:
                            break
                    except:
                        Console.error("This is not a valid Chameleon.org cloud project", traceflag=False)

            password = getpass.getpass("Please enter the password for {:}: ".format("chameleon", credentials.OS_PASSWORD))

            credentials.OS_TENENT_ID = credentials.OS_PROJECT_NAME
            credentials.OS_TENENT_NAME = credentials.OS_PROJECT_NAME
            credentials.OS_USERNAME = username
            credentials.OS_PASSWORD = password

            config.save()
            return ""

        elif arguments['ENTRY'] is not None:
            name = arguments['ENTRY']
            Register.entry(name)
            return ""
        # if all fails do a simple list

        filename = _get_config_yaml_file(arguments)
        CloudRegister.list(filename)

        pass
Exemple #5
0
    def do_cluster(self, args, arguments):
        """
        ::

          Usage:
              cluster list [--format=FORMAT]
              cluster list NAME
                           [--format=FORMAT]
                           [--column=COLUMN]
                           [--short]
              cluster create NAME
                             [--count=COUNT]
                             [--login=USERNAME]
                             [--cloud=CLOUD]
                             [--image=IMAGE]
                             [--flavor=FLAVOR]
                             [--add]
              cluster delete NAME
              cluster setup NAME [--username]
              cluster inventory NAME

          Description:
              with the help of the cluster command you can create a number
              of virtual machines that are integrated in a named virtual cluster.
              You will be able to login between the nodes of the virtual cluster
              while using public keys.

              cluster setup NAME
                sets up the keys between the cluster node as well as the machine that
                executes the cm command

              cluster inventory NAME
                creates an inventory.txt file to be used by ansible in the current directory

              cluster create NAME
                 creates the virtual machines used for the cluster

              cluster list NAME
                 lists selected details of the vms for the cluster

              cluster delete NAME
                  remove the cluster and its VMs

          Examples:
              cluster list
                  list the clusters

              cluster create NAME --count=COUNT --login=USERNAME [options...]
                  Start a cluster of VMs, and each of them can log into each other.
                  CAUTION: you should specify defaults before using this command:
                  1. select cloud to work on, e.g. cloud select kilo
                       default cloud=kilo
                  2. test if you can create a single VM on the cloud to see if
                     everything is set up
                  3. set the default key to start VMs, e.g. key default [USERNAME-key]
                  5. set image of VMs, e.g. default image
                  6. set flavor of VMs, e.g. default flavor
                  7. Make sure to use a new unused group name

          Arguments:
              NAME              cluster name or group name

          Options:
              --count=COUNT     give the number of VMs to add into the cluster
              --login=USERNAME  give a login name for the VMs, e.g. ubuntu
              --cloud=CLOUD     give a cloud to work on
              --flavor=FLAVOR   give the name of the flavor or flavor id
              --image=IMAGE     give the name of the image or image id
              --add             if a group exists and there are VMs in it
                                additional vms will be added to this cluster and the
                                keys will be added to each other so one can login between
                                them
              FORMAT            output format: table, json, csv
              COLUMN            customize what information to display, for example:
                                --column=status,addresses prints the columns status
                                and addresses
              --detail          for table print format, a brief version
                                is used as default, use this flag to print
                                detailed table

        """
        def get_vms(group_name):
            groups = Vm.get_vms_by_group(group_name)
            vms = []
            for group in groups:
                name = group["member"]
                print(name)
                vm = Vm.get_vm(name)
                vm['cluster'] = group_name
                vms.append(vm)
            return vms

        def _print(f):
            print(f)

        def write(filename, msg):
            with open(path_expand(filename), 'w') as f:
                output = f.write(msg)

        arg = dotdict(arguments)

        arg.format = arguments["--format"] or "table"
        arg.count = int(arguments["--count"] or 1)
        arg.username = arguments["--login"]
        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.add = arguments["--add"]
        arg.group = arg.NAME
        arg.name = None
        arg.key = Default.key
        arg.secgroup = Default.secgroup
        arg.group = arg.NAME
        arg.short = arguments["--short"]

        if arg.create:

            boot_from_args(arg)

        elif arg.inventory:

            group = Vm.get_vms_by_group(arg.group)

            result = ""
            if arg.format is "table":
                result = "[servers]\n"

            for element in group:
                name = element["member"]
                vm = Vm.get_vm(name)[0]
                vm['cluster'] = arg.group
                result += "{floating_ip}\n".format(**vm)

            Console.ok("Writing ips to inventory.txt")
            print(result)

            write("inventory.txt", result)

            Console.ok(".ok")
            return ""

        elif arg.list and arg.NAME is not None:

            if arg.short:

                vms = Vm.get_vms_by_group(arg.group)

                if vms is None:
                    Console.error("no vms found for {}".format(arg.group))
                else:

                    print(
                        Printer.list(vms,
                                     header=['Group', 'Vm'],
                                     order=['name', 'member'],
                                     output=arg.format))

            else:

                groups = Vm.get_vms_by_group(arg.group)

                pprint(groups)

                vms = []
                for group in groups:
                    name = group["member"]
                    vm = Vm.get_vm(name)[0]
                    vm['cluster'] = arg.group
                    if vm is not None:
                        vms.append(vm)

                pprint(vms)

                if vms is None:
                    Console.error("no vms found for {}".format(arg.group))
                else:

                    print(
                        Printer.list(vms,
                                     order=[
                                         'name', 'cluster', 'flavor', 'image',
                                         'status', 'user_id', 'floating_ip'
                                     ],
                                     output=arg.format))
            return ""

        elif arg.setup:

            def push(from_path, vm):
                vm.ip = vm.floating_ip
                if vm.ip is not None:
                    if arg.verbose:
                        Console.info("Connecting to Instance at IP:" +
                                     format(vm.ip))

                    sshcommand = "scp"
                    sshcommand += " -o StrictHostKeyChecking=no"
                    sshcommand += " {:}".format(from_path)
                    sshcommand += " {username}@{ip}:.ssh/authorized_keys".format(
                        **vm)

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

            groups = Vm.get_vms_by_group(arg.group)

            pprint(groups)

            vms = []
            for group in groups:
                name = group["member"]
                vm = Vm.get_vm(name)[0]
                vm['cluster'] = arg.group
                if vm is not None:
                    vms.append(vm)

            pprint(vms)

            if vms is None:
                Console.error("no vms found for {}".format(arg.group))
            else:

                print(
                    Printer.list(vms,
                                 order=[
                                     'name', 'cluster', 'flavor', 'image',
                                     'status', 'user_id', 'floating_ip'
                                 ],
                                 output=arg.format))

                keys = ""
                for vm in vms:
                    vm = dotdict(vm)
                    cloud = vm.category

                    if vm.username is None:
                        vm.username = arguments[
                            "--username"] or Image.guess_username(arg.image)

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

                    print("C", chameleon)

                    if chameleon:
                        vm.username = "******"
                    elif vm.category == "azure":
                        vm.username = ConfigDict(
                            filename="cloudmesh.yaml")["cloudmesh"]["clouds"][
                                "azure"]["default"]["username"]
                    else:
                        if vm.username is None:
                            Console.error(
                                "Could not guess the username of the vm",
                                traceflag=False)
                            return

                    Vm.set_login_user(name=vm.name,
                                      cloud=vm.category,
                                      username=vm.username)
                    vm.ip = vm.floating_ip

                    def execute(commands):
                        if vm.ip is not None:
                            if arg.verbose:
                                Console.info("Connecting to Instance at IP:" +
                                             format(vm.ip))

                            sshcommand = "ssh"
                            if arg.key is not None:
                                sshcommand += " -i {:}".format(arg.key)
                            sshcommand += " -o StrictHostKeyChecking=no"
                            sshcommand += " {username}@{ip}".format(**vm)
                            sshcommand += " \'{:}\'".format(commands)

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

                    def copy(commands):
                        if vm.ip is not None:
                            if arg.verbose:
                                Console.info("Connecting to Instance at IP:" +
                                             format(vm.ip))

                            sshcommand = "scp"
                            sshcommand += " -o StrictHostKeyChecking=no"
                            sshcommand += " {username}@{ip}".format(**vm)
                            sshcommand += ":{:}".format(commands)

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

                    def cat(filename):
                        with open(path_expand(filename), 'r') as f:
                            output = f.read()
                        return output

                    execute('cat /dev/zero | ssh-keygen -q -N ""')
                    copy(".ssh/id_rsa.pub ~/.ssh/id_rsa_{name}.pub".format(
                        **vm))

                    output = "~/.ssh/id_rsa_{name}.pub".format(**vm)

                    keys = keys + cat(output)

                print("WRITE KEYS")
                keys = keys + cat("~/.ssh/id_rsa.pub")
                output = "~/.ssh/id_rsa_{group}.pub".format(**arg)
                write(output, keys)

                print("PUSH KEYS")
                for vm in vms:
                    vm = dotdict(vm)
                    push("~/.ssh/id_rsa_{group}.pub".format(**arg), vm)

        return ""
Exemple #6
0
    def do_ssh(self, args, arguments):
        """
        ::

            Usage:
                ssh table
                ssh list [--format=FORMAT]
                ssh cat
                ssh register NAME PARAMETERS
                ssh ARGUMENTS


            conducts a ssh login on a machine while using a set of
            registered machines specified in ~/.ssh/config

            Arguments:

              NAME        Name or ip of the machine to log in
              list        Lists the machines that are registered and
                          the commands to login to them
              PARAMETERS  Register te resource and add the given
                          parameters to the ssh config file.  if the
                          resoource exists, it will be overwritten. The
                          information will be written in /.ssh/config

            Options:

               -v       verbose mode
               --format=FORMAT   the format in which this list is given
                                 formats incluse table, json, yaml, dict
                                 [default: table]

               --user=USER       overwrites the username that is
                                 specified in ~/.ssh/config

               --key=KEY         The keyname as defined in the key list
                                 or a location that contains a pblic key

            Description:

                ssh list
                    lists the hostsnames  that are present in the
                    ~/.ssh/config file

                ssh cat
                    prints the ~/.ssh/config file

                ssh table
                    prints contents of the ~/.ssh/config file in table format

                ssh register NAME PARAMETERS
                    registers a host i ~/.ssh/config file
                    Parameters are attribute=value pairs
                    Note: Note yet implemented

                ssh ARGUMENTS
                    executes the ssh command with the given arguments
                    Example:
                        ssh myhost

                            conducts an ssh login to myhost if it is defined in
                            ~/.ssh/config file
        """
        # pprint(arguments)

        def read(filename=None):
            if filename is None:
                filename = "~/.ssh/config"
            with open(path_expand("~/.ssh/config"), "r") as f:
                content = f.readlines()
            return "".join(content)

        if arguments["list"]:

            output_format = arguments["--format"]
            banner('List SSH config hosts')
            hosts = ssh_config()
            for host in hosts.list():
                print(host)

        elif arguments["table"]:

            content = read(filename="~/.ssh/config").split("\n")

            entries = [
            ]

            def empty():
                return {
                    "host": None,
                    "hostname": None,
                    "user": None,
                    "proxycommand": None,
                    "serveraliveinterval": None,
                    "localforward": None,
                    "forwardx11": None
                }

            entry = empty()
            for line in content:
                line = line.strip()
                if line.startswith("#"):
                    pass
                elif line.strip() == "":
                    pass
                elif "Host " in line:
                    hostname = line.strip().split("Host")[1]
                    entry["host"] = hostname.strip()
                    if entry is not None:
                        entries.append(entry)
                    entry = empty()
                else:
                    attribute, value = line.strip().split(" ", 1)
                    entry[attribute.lower()] = value.strip()

            pprint(entries)
            order = ["host",
                     "hostname",
                     "user",
                     "proxycommand",
                     "serveraliveinterval",
                     "localforward",
                     "forwardx11"]

            print(Printer.list(entries, order=order))

        elif arguments["cat"]:

            print(read(filename="~/.ssh/config"))

        elif arguments["register"]:

            name = arguments["NAME"]
            parameters = arguments["PARAMETERS"]
            Console.ok('register {} {}'.format(name, parameters))
            TODO.implement("Not implemented")

        else:  # ssh ARGUMENTS...

            args = arguments["ARGUMENTS"]
            os.system("ssh {}".format(args))
            return ""

        return ""
Exemple #7
0
    def do_register(self, args, arguments):
        """
        ::

          Usage:
              register info
              register backup
              register new [--force] [--dryrun]
              register clean [--force]
              register list ssh [--format=FORMAT]
              register list [--yaml=FILENAME][--info][--format=FORMAT]
              register cat [--yaml=FILENAME]
              register edit [--yaml=FILENAME]
              register user [USERNAME]
              register cloud [CLOUD] [--force]
              register remote [CLOUD] [--force]
              register export HOST [--password] [--format=FORMAT]
              register source HOST
              register merge FILEPATH
              register form [--yaml=FILENAME]
              register check [--yaml=FILENAME]
              register test [--yaml=FILENAME]
              register json HOST
              register env [--provider=PROVIDER]
              register ec2 CLOUD EC2ZIP
              register ENTRY

          managing the registered clouds in the cloudmesh.yaml file.
          It looks for it in the current directory, and than in
          ~/.cloudmesh.  If the file with the cloudmesh.yaml name is
          there it will use it.  If neither location has one a new
          file will be created in ~/.cloudmesh/cloudmesh.yaml. Some
          defaults will be provided.  However you will still need to
          fill it out with valid entries.

          Arguments:

            HOST   the host name
            USER   the user name
            FILEPATH the path of the file
            CLOUD the cloud name
            PROVIDER the provider or type of cloud [Default: openstack]
            USERNAME  Username that would be registered in yaml. Defaults to OS username.

          Options:

            --provider=PROVIDER     Provider to be used for cloud. Values are:
                                    openstack, azure, ec2.
            --version=VERSION       Version of the openstack cloud.
            --openrc=OPENRC         The location of the openrc file
            --password              Prints the password
            --force                 ignore interactive questions and execute
                                    the action

          Description:

              register info
                  lists the clouds specified in the cloudmesh.yaml
                  file in the current directory, and then in ~/.cloudmesh

              register list [--yaml=FILENAME] [--name] [--info]
                  lists the clouds specified in the cloudmesh.yaml file. If
                  info is specified it also prints the location of the yaml
                  file.

              register list ssh
                  lists hosts from ~/.ssh/config

              register cat [--yaml=FILENAME]
                  outputs the cloudmesh.yaml file

              register edit [--yaml=FILENAME]
                  edits the cloudmesh.yaml file

              register export HOST [--format=FORMAT]

                    prints the contents of an openrc.sh file based on the
                    information found in the cloudmesh.yaml file.

              register remote CLOUD [--force]

                    reads the Openstack OPENRC file from a remote host that
                    is described in cloudmesh.yaml file. We assume that
                    the file has already a template for this host. If
                    not it can be created from other examples before
                    you run this command.

                    It uses the OS_OPENRC variable to locate the file and
                    copy it onto your computer.

              register merge FILENAME
                  Replaces the TBD in cloudmesh.yaml with the contents
                  present in the named file

              register form [--yaml=FILENAME]
                  interactively fills out the form wherever we find TBD.

              register check [--yaml=FILENAME]
                  checks the yaml file for completness

              register test [--yaml=FILENAME]
                  checks the yaml file and executes tests to check if
                  we can use the cloud. TODO: maybe this should be in
                  a test command

              register json host
                  displays the host details in json format

              register remote CLOUD
                  registers a remote cloud and copies the openrc file
                  specified in the credentials of the cloudmesh.yaml

              register CLOUD --dir
                  Copies the entire directory from the cloud and puts it in
                  ~/.cloudmesh/clouds/host
                  For kilo, The directory would be copied to
                  ~/.cloudmesh/clouds/kilo

              register env [--provider=PROVIDER] [HOSTNAME]
                  Reads env OS_* variables and registers a new cloud in yaml,
                  interactively. Default PROVIDER is openstack and HOSTNAME
                  is localhost.

              register user [USERNAME]
                  Sets the user in yaml with the value provided.
         """

        # from pprint import pprint
        # pprint(arguments)

        def _get_config_yaml_file(arguments):
            filename = arguments["--yaml"] or "cloudmesh.yaml"
            filename = Config.find_file(filename)
            return filename

        def exists(filename):
            return os.path.isfile(filename)

        def export(host, output):
            config = ConfigDict("cloudmesh.yaml")
            credentials = dict(
                config["cloudmesh"]["clouds"][host]["credentials"])

            if not arguments["--password"]:
                credentials["OS_PASSWORD"] = "******"

            if output is None:
                for attribute, value in credentials.items():
                    print("export {}={}".format(attribute, value))
            elif output == "table":
                print(Printer.attribute(credentials))
            else:
                print(Printer.write(credentials, output=output))
                # TODO: bug csv does not work

        if arguments["info"]:

            filename = _get_config_yaml_file(arguments)

            if os.path.isfile(filename):
                Console.ok("File '{}' exists. ok.".format(filename))

                Console.ok("The yaml file contains the following templates:")

                d = CloudRegister.list(filename,
                                       Default.cloud,
                                       info=False,
                                       output="table")
                print(d)

            else:
                Console.error("File {} does not exist".format(filename))

            return ""

        elif arguments["backup"]:

            name = backup_name("~/.cloudmesh/cloudmesh.yaml")
            configfile = path_expand("~/.cloudmesh/cloudmesh.yaml")
            print(name)
            try:
                copy(configfile, name)
                Console.ok("Bakup copy created: {}. ok.".format(name))
            except:
                Console.error("Could not create a backup copy from {}".format(
                    configfile))

            return ""

        elif arguments["new"]:

            import shutil
            import cloudmesh_client.etc

            config = ConfigDict("cloudmesh.yaml")
            data = dotdict({
                'dir':
                cloudmesh_client.etc.__file__,
                'filename':
                os.path.join(os.path.dirname(cloudmesh_client.etc.__file__),
                             "cloudmesh.yaml"),
                'yamlfile':
                path_expand("~/.cloudmesh/cloudmesh.yaml"),
                'dryrun':
                arguments['--dryrun']
            })
            Console.ok(data.filename)
            force = arguments["--force"]
            if not force:
                force = yn_choice(
                    "Would you like create a new configuration file at {}".
                    format(data.yamlfile))
            if force:
                if not data.dryrun:
                    config.make_a_copy(location=data.yamlfile)
                    shutil.copyfile(data.filename, data.yamlfile)
                print("copy ")
                print("From: ", data.filename)
                print("To:   ", data.yamlfile)

            # filename = _get_config_yaml_file(arguments)
            # if _exists(filename):
            #    Console.ok("File '{}' exists. ok.".format(filename))
            # else:
            #    Console.error("File {} does not exist".format(filename))
            return ""

        elif arguments["clean"]:

            filename = _get_config_yaml_file(arguments)
            force = arguments["--force"] or False
            if filename is not None:
                print(filename, force)
                if exists(filename):
                    print("Delete cloudmesh.yaml file:", filename)
                    if not force:
                        force = yn_choice("Would you like to delete the "
                                          "cloudmesh.yaml file")
                        print(force)
                    if force:
                        os.remove(filename)
                        Console.ok("Deleted the file " + filename + ". ok.")
                    else:
                        Console.ok("Please use Y to delete the file.")
                    pass
                else:
                    Console.error("File {} does not exist".format(filename))
            else:
                Console.error("No cloudmesh.yaml file found.")
            return ""

        elif arguments["cat"]:

            filename = _get_config_yaml_file(arguments)
            if exists(filename):
                with open(filename, 'r') as f:
                    lines = f.read().split("\n")
                print('\n'.join(lines))
            else:
                Console.error("File {} does not exist".format(filename))
            return ""

        elif arguments["edit"]:

            filename = _get_config_yaml_file(arguments)
            if exists(filename):
                try:
                    data = {
                        "editor": os.environ["EDITOR"],
                        "filename": filename
                    }
                    Console.ok("editing file " + filename)
                    os.system("{editor} {filename}".format(**data))
                except:
                    Console.error(
                        "No operating system environment variable EDITOR set.",
                        traceflag=False)
            else:
                Console.error("File {} does not exist".format(filename),
                              traceflag=False)
            return ""

        elif arguments['list'] and arguments['ssh']:
            output = arguments['--format'] or 'table'
            hosts = CloudRegister.list_ssh()
            print(Printer.list(hosts, output=output))
            return ""

        elif arguments['list']:

            filename = _get_config_yaml_file(arguments)
            info = arguments["--info"] or False
            output = arguments["--format"] or "table"

            if not filename:
                Console.error("File {} doesn't exist".format(filename))
            else:
                d = CloudRegister.list(filename,
                                       Default.cloud,
                                       info=info,
                                       output=output)
                print(d)
            return ""

        elif arguments['check']:
            filename = _get_config_yaml_file(arguments)
            if not filename:
                Console.error("File {} doesn't exist".format(
                    arguments["--yaml"] or 'cloudmesh.yaml'))
            else:
                CloudRegister.check_yaml_for_completeness(filename)
            return ""

        elif arguments['merge']:
            filename = arguments['FILENAME']
            CloudRegister.from_file(filename)
            return ""

        elif arguments['test']:
            filename = _get_config_yaml_file(arguments)
            CloudRegister.test(filename)
            return ""

        elif arguments['form']:
            filename = _get_config_yaml_file(arguments)
            if not filename:
                Console.error("File {} doesn't exist".format(
                    arguments["--yaml"] or 'cloudmesh.yaml'))
            else:
                CloudRegister.fill_out_form(filename)
            return ""

        elif arguments['source']:

            host = arguments['HOST']
            config = ConfigDict("cloudmesh.yaml")
            credentials = dict(
                config["cloudmesh"]["clouds"][host]["credentials"])

            # unset

            variables = list(os.environ)
            for attribute in variables:
                if attribute.startswith("OS_"):
                    print("x ", attribute)
                    del os.environ[attribute]

            # set
            for attribute, value in credentials.items():
                os.putenv(attribute, value)
                print("+ ", attribute)
            export(host, "table")

            return ""

        elif arguments['export']:

            output = arguments['--format']
            host = arguments['HOST']
            try:
                variables = list(os.environ)
                for attribute in variables:
                    if attribute.startswith("OS_"):
                        print("unset ", attribute)
                        del os.environ[attribute]
                export(host, output)
            except:
                Console.error("The export may not include all values",
                              traceflag=False)
            return ""

        elif arguments['json']:
            host = arguments['HOST']
            result = CloudRegister.get(host)
            if result:
                print(json.dumps(result, indent=4))
            else:
                print("Cloud {:} is not described in cloudmesh.yaml".format(
                    host))
            return ""

        elif arguments['remote']:

            force = arguments['--force']
            cloud = arguments['CLOUD']

            if cloud is None:
                # clouds =  [ConfigDict(filename="cloudmesh.yaml")["cloudmesh"]["active"][0]]
                clouds = ["kilo"]  # hardcode to kilo for now

            else:
                clouds = [cloud]

            for cloud in clouds:
                CloudRegister.remote(cloud, force)
                export(cloud, "table")

            config = ConfigDict("cloudmesh.yaml")
            if config["cloudmesh.profile.user"] == "TBD":
                name = config["cloudmesh.clouds.kilo.credentials.OS_USERNAME"]
                config["cloudmesh"]["profile"]["user"] = name
                config.save()
            return ""

        elif arguments['ec2']:

            cloud = arguments['CLOUD']
            zipfile = arguments['EC2ZIP']

            if cloud is None:
                clouds = [
                    ConfigDict(
                        filename="cloudmesh.yaml")["cloudmesh"]["active"][0]
                ]
            else:
                clouds = [cloud]

            for cloud in clouds:
                CloudRegister.ec2(cloud, zipfile)
                export(cloud, "table")

            return ""

        elif arguments['env']:
            try:
                CloudRegister.from_environ(arguments['--provider'])
            except Exception as e:
                Error.traceback(e)
            return ""

        elif arguments['cloud']:
            """
            if arguments['--dir']:
                cloud = arguments['--name']
                directory = arguments['--dir']
                Console.ok(directory)
                CloudRegister.directory(cloud, directory)

            else:
            """

            values_to_replace = ['tbd', 'null', 'tbd_not_used']

            cloud = arguments['CLOUD']
            if cloud is None:
                clouds = [
                    ConfigDict(
                        filename="cloudmesh.yaml")["cloudmesh"]["active"][0]
                ]
            else:
                clouds = [cloud]

            for cloud in clouds:

                config = ConfigDict("cloudmesh.yaml")

                cloud_config = config["cloudmesh.clouds"][cloud]

                # Checking credentials
                print("Checking cloud credentials...")
                for prop in cloud_config["credentials"]:
                    if cloud_config["credentials"][prop].lower(
                    ) in values_to_replace:
                        value = input(prop + "(" +
                                      cloud_config["credentials"][prop] +
                                      "): ")
                        cloud_config["credentials"][prop] = value
                # Checking defaults
                print("Checking cloud defaults...")
                for prop in cloud_config["default"]:
                    if cloud_config["default"][prop].lower(
                    ) in values_to_replace:
                        value = input(prop + "(" +
                                      cloud_config["default"][prop] + "): ")
                        cloud_config["default"][prop] = value
                config.save()
                export(cloud, "table")
            return ""

        elif arguments['user']:
            username = arguments["USERNAME"] or getpass.getuser()
            CloudRegister.set_username(username)

            Console.ok("Setting profile user to {} in the yaml file.".format(
                username))

            hosts = ssh_config()

            hosts.generate(key="india", username=username, verbose=True)

            return ""

        elif arguments['ENTRY'] is not None:
            name = arguments['ENTRY']
            Register.entry(name)
            return ""
        # if all fails do a simple list

        filename = _get_config_yaml_file(arguments)
        CloudRegister.list(filename)

        pass