Exemplo n.º 1
0
class TortugaProxyConfig(TortugaCli):
    def __init__(self):
        super(TortugaProxyConfig, self).__init__(validArgCount=4)

        self._cm = ConfigManager()
        self._kitApi = KitApi()

    def parseArgs(self, usage=None):
        # TODO: add stuff here
        self.addOption('-f',
                       '--force',
                       action='store_true',
                       default=False,
                       dest='bForce',
                       help='Override built-in sanity checks')

        self.addOption('-n',
                       '--dry-run',
                       action='store_true',
                       dest='bDryRun',
                       default=False,
                       help='Do not write anything to disk')

        super().parseArgs(usage=usage)

    def runCommand(self):
        self.parseArgs()

        if self.getNArgs() < 1:
            self.usage()

            return

        action = self.getArgs()[0]

        if action == 'list':
            self._listProxies()
        elif action == 'add':
            if self.getNArgs() != 3:
                self.usage()
                return

            self._addProxy()
        elif action == 'delete':
            self._deleteProxy()
        else:
            raise InvalidArgument('Unknown directive [%s]' % (action))

    def _getProxyCfg(self):         \
            # pylint: disable=no-self-use

        cfg = configparser.ConfigParser()

        cfg.read('/opt/tortuga/config/base/apache-component.conf')

        return cfg

    def __get_proxy_set(self, cfg):         \
            # pylint: disable=no-self-use

        return set(cfg.get('proxy', 'proxy_list').split(' ')) \
            if cfg.has_option('proxy', 'proxy_list') else set()

    def _getProxyMap(self, cfg):
        proxyMap = {}

        if not cfg.has_section('proxy'):
            return proxyMap

        proxy_option_list = self.__get_proxy_set(cfg)

        for opt in proxy_option_list:
            if not cfg.has_option('proxy', opt):
                continue

            proxyMap[opt] = cfg.get('proxy', opt)

        return proxyMap

    def _writeProxyMap(self, cfg, proxyMap):
        if not cfg.has_section('proxy'):
            cfg.add_section('proxy')

        # Determine differences between what exists on disk and what has
        # just been removed.
        for deleted_option in self.__get_proxy_set(cfg) - set(proxyMap.keys()):
            if not cfg.has_option('proxy', deleted_option):
                continue

            cfg.remove_option('proxy', deleted_option)

        cfg.set('proxy', 'proxy_list', ' '.join(list(proxyMap.keys())))

        for key, value in proxyMap.items():
            cfg.set('proxy', key, value)

        proxyDict = dict(cfg.items('proxy'))

        if self.getArgs().bDryRun:
            print('[dryrun] %s' % (pprint.pformat(proxyDict)))
            return

        with open('/opt/tortuga/config/base/apache-component.conf', 'w') as fp:
            cfg.write(fp)

    def _addProxy(self):
        proxy_from = self.getArgs()[1]
        proxy_to = self.getArgs()[2]

        cfg = self._getProxyCfg()

        proxyMap = self._getProxyMap(cfg)

        if proxy_from in proxyMap:
            if proxy_to == proxyMap[proxy_from]:
                print('Proxy already mapped')

                sys.exit(1)

            if not self.getArgs().bForce:
                print('URI [%s] is already proxied to [%s]' %
                      (proxy_from, proxyMap[proxy_from]))

                sys.exit(1)

        proxyMap[proxy_from] = proxy_to

        self._writeProxyMap(cfg, proxyMap)

    def __find_kit_by_name_and_version(self, os_name, os_version):
        """
        Iterate over list of all installed kits looking for a name and
        version match only.

        Returns Kit object, otherwise None.
        """

        kit = None

        for kit in self._kitApi.getKitList():
            if kit.getName() == os_name and \
               kit.getVersion() == os_version:
                break
        else:
            return None

        return kit

    def __get_existing_kit_by_url(self, proxy_uri):
        """
        Given a proxy URI, determine if the path matches that of an
        installed kit. Returns Kit object or None.
        """

        uri_parts = proxy_uri.split('/')

        if len(uri_parts) != 5:
            # Short-circuit any check if the URI is longer/shorter than
            # a properly formatted Tortuga kit URL.
            return None

        # Check if this URI is formatted like valid OS kit URL

        os_name = uri_parts[2]
        os_version = uri_parts[3]
        os_arch = uri_parts[4]

        fake_url = self._cm.getYumRootUrl(
            'INSTALLER') + '/%s/%s/%s' % (os_name, os_version, os_arch)

        o = urllib.parse.urlparse(fake_url)

        if o.path != proxy_uri:
            # The paths don't start with the requisite Tortuga path
            return None

        version = os_version.split('-')

        # Check if supplied 'version' element of the path matches the
        # Tortuga convention.

        if len(version) == 1:
            # Possibly an OS kit
            # bOsKit = True if os_arch == 'x86_64' else None
            pass
        elif len(version) == 2:
            # Possibly a non-OS kit. Non-OS kits must have the 'arch'
            # set to 'noarch'
            # bOsKit = False if os_arch == 'noarch' else None
            pass
        else:
            # version element doesn't match Tortuga format
            return None

        return self.__find_kit_by_name_and_version(os_name, os_version)

    def _deleteProxy(self):
        proxy_path = self.getArgs()[1]

        cfg = self._getProxyCfg()

        proxyMap = self._getProxyMap(cfg)

        if proxy_path in proxyMap:
            existingKit = self.__get_existing_kit_by_url(proxy_path)

            if existingKit and not self.getArgs().bForce:
                print('WARNING: an installed %s [%s] matches this URL.'
                      ' Use \'--force\' to override this sanity check.' %
                      ('OS kit' if existingKit.getIsOs() else 'kit',
                       existingKit))

                sys.exit(1)

        if proxy_path not in proxyMap:
            print('Error: proxy path [%s] not found' % (proxy_path))

            sys.exit(1)

        del proxyMap[proxy_path]

        self._writeProxyMap(cfg, proxyMap)

    def _listProxies(self):
        cfg = self._getProxyCfg()

        for key, value in self._getProxyMap(cfg).items():
            print('%s -> %s' % (key, value))
Exemplo n.º 2
0
class OSSupport(OsSupportBase):
    def __init__(self, osFamilyInfo):
        super(OSSupport, self).__init__(osFamilyInfo)

        self._cm = ConfigManager()
        self._globalParameterDbApi = GlobalParameterDbApi()

        try:
            depot_dir = \
                self._globalParameterDbApi.getParameter('depot').getValue()
        except ParameterNotFound:
            # Fallback to legacy default
            depot_dir = '/depot'

        self._cm.setDepotDir(depot_dir)

    def getPXEReinstallSnippet(self, ksurl, node, hardwareprofile=None,
                               softwareprofile=None): \
            # pylint: disable=no-self-use
        # General kickstart/kernel parameters

        # Find the first nic marked as bootable
        nics = [nic for nic in node.nics if nic.boot]

        if not nics:
            raise NicNotFound(
                'Node [%s] does not have a bootable NIC' % (node.name))

        # Choose the first one
        nic = nics[0]

        if hardwareprofile is None:
            hardwareprofile = node.hardwareprofile

        if softwareprofile is None:
            softwareprofile = node.softwareprofile

        # Use settings from software profile, if defined, otherwise use
        # settings from hardware profile.
        bootParams = getBootParameters(hardwareprofile, softwareprofile)

        kernel = bootParams['kernel']
        kernelParams = bootParams['kernelParams']
        initrd = bootParams['initrd']

        bootargs = [
        ]

        if softwareprofile.os.family.version == '7':
            # RHEL 7.x
            bootargs.append('inst.ks=%s' % (ksurl))
        else:
            # RHEL 5.x and 6.x
            bootargs.append('ks=%s' % (ksurl))

            bootargs.append('ksdevice=%s' % (nic.networkdevice.name))

        # Append kernel parameters, if defined.
        if kernelParams:
            bootargs.append(kernelParams)

        result = '''\
    kernel %s
    append initrd=%s %s''' % (kernel, initrd, ' '.join(bootargs))

        return result

    def __get_kickstart_network_entry(self, dbNode, hardwareprofile, nic): \
            # pylint: disable=no-self-use
        bProvisioningNic = nic.network == hardwareprofile.nics[0].network

        installer_private_ip = hardwareprofile.nics[0].ip

        if not bProvisioningNic and not nic.network.usingDhcp and not nic.ip:
            # Unconfigured public static IP network
            return None

        bActivate = False

        # By default, all interfaces are enabled at on boot
        bOnBoot = True

        # Use the network device name, as specified in the hardware profile
        netargs = [
            'network --device %s' % (nic.networkdevice.name)
        ]

        if bProvisioningNic:
            netargs.append(
                '--bootproto %s' % (
                    'static' if bProvisioningNic or
                    not nic.network.usingDhcp else 'dhcp'))

            netargs.append('--ip=%s' % (nic.ip))
            netargs.append('--netmask=%s' % (nic.network.netmask))
            netargs.append('--nameserver=%s' % (installer_private_ip))

            bActivate = True
        else:
            if nic.network and nic.network.usingDhcp:
                netargs.append('--bootproto dhcp')
            else:
                netargs.append('--bootproto static')

                if nic.ip:
                    netargs.append('--ip=%s' % (nic.ip))
                    netargs.append('--netmask=%s' % (nic.network.netmask))
                else:
                    # Do not enable interface if it's not configured
                    netargs.append('--onboot=no')

                    bOnBoot = False

        # Store provisioning network interface device name for
        # later reference in the template

        # Ensure all interfaces are activated
        if bActivate:
            netargs.append('--activate')

        bDefaultRoute = True

        if bProvisioningNic:
            # This is the nic connected to the provisioning network.

            if len(dbNode.nics) > 1:
                # Disable the default route on the management network.
                netargs.append('--nodefroute')

                bDefaultRoute = False
        else:
            # Disable DNS for all interfaces other than the
            # provisioning network
            if bOnBoot:
                netargs.append('--nodns')

        if nic.network.gateway and bDefaultRoute:
            netargs.append('--gateway %s' % (nic.network.gateway))

        return ' '.join(netargs)

    def __validate_node(self, node): \
            # pylint: disable=no-self-use
        """
        Raises:
            NodeNotFound
            NicNotFound
        """

        if not node.name:
            raise NodeNotFound('Node must have a name')

        if not node.nics:
            raise NicNotFound('Node [%s] has no associated nics' % (
                node.name))

    def __kickstart_get_timezone(self):
        tz = self._globalParameterDbApi.getParameter(
            'Timezone_zone').getValue()

        # Ensure timezone does not contain any spaces
        return tz.replace(' ', '_')

    def __kickstart_get_network_section(self, node, hardwareprofile):
        # Ensure nics are processed in order (ie. eth0, eth1, eth2...)
        nics = node.nics
        nics.sort(key=lambda nic: nic.networkdevice.name)

        network_entries = []
        hostname_set = False

        # Iterate over nics, adding 'network' Kickstart entries for each
        for nic in nics:
            networkString = self.__get_kickstart_network_entry(
                node, hardwareprofile, nic)

            if not networkString:
                continue

            if not hostname_set and nic.boot and \
                    nic.network.type == 'provision':
                networkString += ' --hostname=%s' % (node.name)

                hostname_set = True

            network_entries.append(networkString)

        return '\n'.join(network_entries)

    def __kickstart_get_repos(self, dbSwProfile, installer_private_ip):
        repo_entries = []

        for dbComponent in dbSwProfile.components:
            dbKit = dbComponent.kit
            if dbKit.isOs or dbKit.name != 'base':
                # Do not add repos for OS kits
                continue

            kitVer = '%s-%s' % (dbKit.version, dbKit.iteration)
            kitArch = 'noarch'

            subpath = '%s/%s/%s' % (dbKit.name, kitVer, kitArch)

            # Check if repository actually exists
            if not os.path.exists(os.path.join(self._cm.getDepotDir(),
                                               'kits',
                                               subpath,
                                               'repodata',
                                               'repomd.xml')):
                # Repository for specified kit is empty. Nothing to do...
                continue

            url = self._cm.getYumRootUrl(installer_private_ip) + \
                '/' + subpath

            repo_entries.append(
                'repo --name %s --baseurl=%s' % (dbKit.name, url))

        subpath = '3rdparty/%s/%s/%s' % (dbSwProfile.os.family.name,
                                         dbSwProfile.os.family.version,
                                         dbSwProfile.os.arch)

        if os.path.exists(os.path.join(self._cm.getRoot(),
                                       'repos',
                                       subpath,
                                       'repodata/repomd.xml')):
            # Third-party repository contains packages, include it in
            # Kickstart
            url = '%s/%s' % (
                self._cm.getYumRootUrl(installer_private_ip), subpath)

            repo_entries.append(
                'repo --name tortuga-third-party --baseurl=%s' % (url))

        return repo_entries

    def __get_kickstart_template(self, swprofile):
        ksTemplate = os.path.join(
            self._cm.getKitConfigBase(),
            'kickstart-%s.tmpl' % (swprofile.os.family.name.encode('ascii')))

        if not os.path.exists(ksTemplate):
            ksTemplate = os.path.join(
                self._cm.getKitConfigBase(),
                'kickstart-%s.tmpl' % (swprofile.name.encode('ascii')))

            if not os.path.exists(ksTemplate):
                ksTemplate = os.path.join(
                    self._cm.getKitConfigBase(), 'kickstart.tmpl')

        return ksTemplate

    def __kickstart_get_partition_section(self, softwareprofile):
        buf = """\
#!/bin/sh
# Determine how many drives we have
"""

        # Temporary workaround for RHEL 5.7 based distros
        # https://bugzilla.redhat.com/show_bug.cgi?format=multiple&id=709880
        if softwareprofile.os.version == '5.7':
            buf += 'set $(PYTHONPATH=/usr/lib/booty list-harddrives)\n'
        else:
            buf += 'set $(list-harddrives)\n'

        buf += """
d1=$1
d2=$3
d3=$5
d4=$7
"""

        clearpartstr = '''
cat >/tmp/partinfo << __PARTINFO__
zerombr
'''

        disksToPreserve = []

        # Need to get the drives to clear
        clearpartstr += 'clearpart '
        driveNumbers = []

        for dbPartition in softwareprofile.partitions:
            disk = dbPartition.device.split('.')[0]

            if disk not in driveNumbers:
                driveNumbers.append(disk)

                if not dbPartition.preserve:
                    # This is a partition to clear
                    if len(driveNumbers) == 1:
                        # First drive
                        clearpartstr += ('--all --initlabel'
                                         ' --drives="${d%s:-nodisk}' % (
                                             disk))
                    else:
                        clearpartstr += ',${d%s:-nodisk}' % (disk)
                else:
                    disksToPreserve.append(disk)

        clearpartstr += "--none" if not driveNumbers else '"'
        clearpartstr += '\n'

        for diskNum in driveNumbers:
            if diskNum in disksToPreserve:
                continue

            buf += '''
dd if=/dev/zero of=$d%s bs=512 count=1
''' % (diskNum)

        buf += clearpartstr

        bootloaderLocation = "mbr"

        # Now create partitions
        for dbPartition in softwareprofile.partitions:
            if dbPartition.bootLoader:
                # Can't control the partition in anaconda...it will be on
                # the drive with the boot partition
                bootloaderLocation = 'partition'

            buf += self._processPartition(dbPartition)

        # now do the bootloader
        buf += (
            'bootloader --location=%s --driveorder=${d1:-nodisk}\n' % (
                bootloaderLocation))

        buf += '__PARTINFO__\n'

        return buf

    def __get_template_subst_dict(self, node, hardwareprofile,
                                  softwareprofile):
        hardwareprofile = hardwareprofile \
            if hardwareprofile else node.hardwareprofile
        softwareprofile = softwareprofile \
            if softwareprofile else node.softwareprofile

        installer_public_fqdn = socket.getfqdn()
        installer_hostname = installer_public_fqdn.split('.')[0]

        installer_private_ip = hardwareprofile.nics[0].ip

        try:
            private_domain = self._globalParameterDbApi.\
                getParameter('DNSZone').getValue()
        except ParameterNotFound:
            private_domain = None

        installer_private_fqdn = '%s%s%s' % (
            installer_hostname,
            get_installer_hostname_suffix(
                hardwareprofile.nics[0], enable_interface_aliases=None),
            '.%s' % (private_domain) if private_domain else '')

        vals = node.name.split('.', 1)
        domain = vals[1].lower() if len(vals) == 2 else ''

        d = {
            'fqdn': node.name,
            'domain': domain,
            'hostname': installer_hostname,
            'installer_private_fqdn': installer_private_fqdn,
            'installer_private_domain': private_domain,
            'installer_private_ip': installer_private_ip,
            'puppet_master_fqdn': installer_public_fqdn,
            'installer_public_fqdn': installer_public_fqdn,
            'ntpserver': installer_private_ip,
            'os': softwareprofile.os.name,
            'osfamily': softwareprofile.os.family.name,
            'osfamilyvers': int(softwareprofile.os.family.version),
            # These are deprecated and included for backwards compatibility
            # only. Do not reference them in any new kickstart templates.
            'primaryinstaller': installer_private_fqdn,
            'puppetserver': installer_public_fqdn,
            'installerip': installer_private_ip,
        }

        # Add entry for install package source
        d['url'] = '%s/%s/%s/%s' % (
            self._cm.getYumRootUrl(installer_private_fqdn),
            softwareprofile.os.name,
            softwareprofile.os.version,
            softwareprofile.os.arch)

        d['lang'] = 'en_US.UTF-8'

        d['keyboard'] = 'us'

        d['networkcfg'] = self.__kickstart_get_network_section(
            node, hardwareprofile)

        d['rootpw'] = self._generatePassword()

        d['timezone'] = self.__kickstart_get_timezone()

        d['includes'] = '%include /tmp/partinfo'

        d['repos'] = '\n'.join(
            self.__kickstart_get_repos(
                softwareprofile, installer_private_fqdn))

        # Retain this for backwards compatibility with legacy Kickstart
        # templates
        d['packages'] = '\n'.join([])

        d['prescript'] = self.__kickstart_get_partition_section(
            softwareprofile)

        d['installer_url'] = self._cm.getInstallerUrl(installer_private_fqdn)

        d['cfmstring'] = self._cm.getCfmPassword()

        return d

    def getKickstartFileContents(self, node, hardwareprofile,
                                 softwareprofile):
        # Perform basic sanity checking before proceeding
        self.__validate_node(node)

        template_subst_dict = self.__get_template_subst_dict(
            node, hardwareprofile, softwareprofile)

        with open(self.__get_kickstart_template(softwareprofile)) as fp:
            tmpl = fp.read()

        return Template(tmpl).render(template_subst_dict)

    def _generatePassword(self): \
            # pylint: disable=no-self-use
        # Generate a random password, used when creating a Kickstart file
        # for package-based node provisioning.
        strlength = 8
        strchars = string.ascii_letters + string.digits
        rootpw = ''.join([choice(strchars) for _ in range(strlength)])
        rootpw = crypt.crypt(str(rootpw), str(time.time()))
        return rootpw

    def __get_partition_mountpoint(self, dbPartition): \
            # pylint: disable=no-self-use
        if not dbPartition.mountPoint:
            if dbPartition.fsType == 'swap':
                mountPoint = 'swap'
            else:
                # Any partition that does not have a mountpoint defined
                # is ignored.
                return None
        else:
            mountPoint = dbPartition.mountPoint

        return mountPoint

    def _processPartition(self, dbPartition): \
            # pylint: disable=no-self-use
        mountPoint = dbPartition.mountPoint \
            if dbPartition.mountPoint else \
            self.__get_partition_mountpoint(dbPartition)

        if not mountPoint:
            return ''

        result = ''

        # All partitions must have a mount point and partition type
        result = 'part %s --fstype %s' % (mountPoint, dbPartition.fsType)

        # This will throw an exception if the size stored in the
        # partition settings is not an integer.
        if dbPartition.size:
            result += ' --size=%d' % (dbPartition.size)
        else:
            # If partition size is not set or is zero, use '--recommended' flag
            if mountPoint == 'swap':
                result += ' --recommended'

        disk, part = dbPartition.device.split('.')

        optionsList = dbPartition.options.split(',') \
            if dbPartition.options else []

        if dbPartition.grow is not None:
            result += ' --grow'

            if dbPartition.maxSize is not None:
                result += ' --maxsize %d' % (dbPartition.maxSize)

        if optionsList:
            # Add the fs options...
            result += ' --fsoptions="%s"' % (','.join(optionsList))

        result += ' --noformat --onpart=${d%s:-nodisk}%s' % (disk, part) \
            if dbPartition.preserve else \
            ' --ondisk=${d%s:-nodisk}' % str(disk)

        result += '\n'

        return result