221 lines
8.1 KiB
Python
221 lines
8.1 KiB
Python
# Copyright 2020 Red Hat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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import argparse
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import logging
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import os
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import yaml
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from osc_lib.command import command
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from osc_lib.i18n import _
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from tripleoclient import constants
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from tripleoclient import utils
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LOG = logging.getLogger(__name__ + ".BackupOvercloud")
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class BackupOvercloud(command.Command):
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"""Backup the Overcloud"""
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def get_parser(self, prog_name):
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parser = argparse.ArgumentParser(
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description=self.get_description(),
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prog=prog_name,
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add_help=False
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)
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parser.add_argument(
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'--init',
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const='rear',
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nargs='?',
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action='store',
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help=_("Initialize environment for backup, "
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"using 'rear' or 'nfs' as args "
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"which will check for package install "
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"and configured ReaR or NFS server. "
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"Defaults to: rear. "
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"i.e. --init rear. "
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"WARNING: This flag will be deprecated "
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"and replaced by '--setup-rear' and "
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"'--setup-nfs'.")
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)
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parser.add_argument(
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'--setup-nfs',
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default=False,
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action='store_true',
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help=_("Setup the NFS server on the backup node "
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"which will install required packages "
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"and configuration on the host 'BackupNode' "
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"in the ansible inventory.")
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)
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parser.add_argument(
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'--setup-rear',
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default=False,
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action='store_true',
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help=_("Setup ReaR on the overcloud 'Controller' hosts which will "
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"install and configure ReaR.")
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)
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parser.add_argument(
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'--inventory',
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default='/home/stack/tripleo-inventory.yaml',
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help=_("Tripleo inventory file generated with "
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"tripleo-ansible-inventory command. "
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"Defaults to: /home/stack/tripleo-inventory.yaml.")
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)
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parser.add_argument(
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'--storage-ip',
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help=_("Storage IP is an optional parameter "
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"which allows for an ip of a storage "
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"server to be specified, overriding the "
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"default undercloud. "
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"WARNING: This flag will be deprecated in "
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"favor of '--extra-vars' which will allow "
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"to pass this and other variables.")
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)
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parser.add_argument(
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'--extra-vars',
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default=None,
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action='store',
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help=_("Set additional variables as Dict or as "
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"an absolute path of a JSON or YAML file type. "
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"i.e. --extra-vars '{\"key\": \"val\", "
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" \"key2\": \"val2\"}' "
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"i.e. --extra-vars /path/to/my_vars.yaml "
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"i.e. --extra-vars /path/to/my_vars.json. "
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"For more information about the variables that "
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"can be passed, visit: https://opendev.org/openstack/"
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"tripleo-ansible/src/branch/master/tripleo_ansible/"
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"roles/backup_and_restore/defaults/main.yml.")
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)
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return parser
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def _parse_extra_vars(self, raw_extra_vars):
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if raw_extra_vars is None:
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return {}
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elif os.path.exists(raw_extra_vars):
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with open(raw_extra_vars, 'r') as fp:
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extra_vars = yaml.safe_load(fp.read())
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else:
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try:
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extra_vars = yaml.safe_load(raw_extra_vars)
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except yaml.YAMLError as exc:
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raise RuntimeError(
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_('--extra-vars is not an existing file and cannot be '
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'parsed as YAML / JSON: %s') % exc)
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return extra_vars
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def _run_backup_overcloud(self, parsed_args):
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"""Backup defined overcloud nodes."""
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extra_vars = self._parse_extra_vars(parsed_args.extra_vars)
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if parsed_args.storage_ip:
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storage_ip = parsed_args.storage_ip
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extra_vars[
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'tripleo_backup_and_restore_nfs_server'
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] = storage_ip
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if not (os.path.isfile(parsed_args.inventory) and
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os.access(parsed_args.inventory, os.R_OK)):
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raise RuntimeError(
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_('The inventory file {} does not exist or is not '
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'readable'.format(parsed_args.inventory)))
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if parsed_args.setup_nfs is True or parsed_args.init == 'nfs':
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LOG.debug(_('Setting up NFS Backup node'))
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self._run_ansible_playbook(
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playbook='prepare-nfs-backup.yaml',
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inventory=parsed_args.inventory,
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tags='bar_setup_nfs_server',
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skip_tags=None,
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extra_vars=extra_vars
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)
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if parsed_args.setup_rear is True or parsed_args.init == 'rear':
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LOG.debug(_('Installing ReaR on controller nodes'))
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self._run_ansible_playbook(
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playbook='prepare-overcloud-backup.yaml',
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inventory=parsed_args.inventory,
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tags='bar_setup_rear',
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skip_tags=None,
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extra_vars=extra_vars
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)
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if (parsed_args.setup_nfs is False and
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parsed_args.setup_rear is False and
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parsed_args.init is None):
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LOG.debug(_('Starting Overcloud Backup'))
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self._run_ansible_playbook(
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playbook='cli-overcloud-backup.yaml',
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inventory=parsed_args.inventory,
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tags='bar_create_recover_image',
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skip_tags=None,
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extra_vars=extra_vars
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)
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def _run_ansible_playbook(self,
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playbook,
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inventory,
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tags,
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skip_tags,
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extra_vars):
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"""Run ansible playbook"""
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with utils.TempDirs() as tmp:
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utils.run_ansible_playbook(
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playbook=playbook,
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inventory=inventory,
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workdir=tmp,
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playbook_dir=constants.ANSIBLE_TRIPLEO_PLAYBOOKS,
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tags=tags,
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skip_tags=skip_tags,
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verbosity=utils.playbook_verbosity(self=self),
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extra_vars=extra_vars
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)
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def take_action(self, parsed_args):
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if parsed_args.init:
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LOG.warning("The following flags will be deprecated:"
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"[--init, --storage-ip]")
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self._run_backup_overcloud(parsed_args)
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print(
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'\n'
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' #############################################################\n'
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' # Disclaimer #\n'
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' # Backup verification is the End Users responsibility #\n'
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' # Please verify backup integrity before any possible #\n'
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' # disruptive actions against the Overcloud. The resulting #\n'
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' # backup file path will be shown on a successful execution. #\n'
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' # #\n'
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' # .-Stay safe and avoid future issues-. #\n'
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' #############################################################\n'
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)
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