353 lines
12 KiB
Python
353 lines
12 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 ansible_runner
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import logging
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import os
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import six
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import tempfile
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import yaml
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from six.moves import configparser
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from validations_libs import constants
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from validations_libs import utils
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LOG = logging.getLogger(__name__ + ".ansible")
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class Ansible(object):
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def __init__(self):
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self.log = logging.getLogger(__name__ + ".Ansible")
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def _playbook_check(self, play):
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"""Check if playbook exist"""
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if not os.path.exists(play):
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play = os.path.join(playbook_dir, play)
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if not os.path.exists(play):
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raise RuntimeError('No such playbook: {}'.format(play))
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self.log.debug('Ansible playbook {} found'.format(play))
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return play
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def _inventory(self, inventory):
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"""Handle inventory for Ansible"""
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if inventory:
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if isinstance(inventory, six.string_types):
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# check is file path
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if os.path.exists(inventory):
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return inventory
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elif isinstance(inventory, dict):
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inventory = yaml.safe_dump(
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inventory,
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default_flow_style=False
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)
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return ansible_runner.utils.dump_artifact(
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inventory,
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ansible_artifact_path,
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'hosts'
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)
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def _creates_ansible_fact_dir(self,
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temp_suffix='validagions-libs-ansible'):
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"""Creates ansible fact dir"""
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ansible_fact_path = os.path.join(
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os.path.join(
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tempfile.gettempdir(),
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temp_suffix
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),
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'fact_cache'
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)
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try:
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os.makedirs(ansible_fact_path)
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return ansible_fact_path
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except FileExistsError:
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self.log.debug(
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'Directory "{}" was not created because it'
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' already exists.'.format(
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ansible_fact_path
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)
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)
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def _get_extra_vars(self, extra_vars):
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"""Manage extra_vars into a dict"""
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extravars = dict()
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if extra_vars:
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if isinstance(extra_vars, dict):
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extravars.update(extra_vars)
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elif os.path.exists(extra_vars) and os.path.isfile(extra_vars):
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with open(extra_vars) as f:
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extravars.update(yaml.safe_load(f.read()))
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return extravars
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def _callback_whitelist(self, callback_whitelist):
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"""Set callback whitelist"""
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if callback_whitelist:
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callback_whitelist = ','.join([callback_whitelist, output_callback])
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else:
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callback_whitelist = output_callback
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return ','.join([callback_whitelist, 'profile_tasks'])
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def _ansible_env_var(self, output_callback, ssh_user, workdir, connection,
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gathering_policy, module_path, key,
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extra_env_variables):
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"""Handle Ansible env var for Ansible config execution"""
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cwd = os.getcwd()
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env = os.environ.copy()
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env['ANSIBLE_SSH_ARGS'] = (
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'-o UserKnownHostsFile={} '
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'-o StrictHostKeyChecking=no '
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'-o ControlMaster=auto '
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'-o ControlPersist=30m '
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'-o ServerAliveInterval=64 '
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'-o ServerAliveCountMax=1024 '
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'-o Compression=no '
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'-o TCPKeepAlive=yes '
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'-o VerifyHostKeyDNS=no '
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'-o ForwardX11=no '
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'-o ForwardAgent=yes '
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'-o PreferredAuthentications=publickey '
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'-T'
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).format(os.devnull)
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env['ANSIBLE_DISPLAY_FAILED_STDERR'] = True
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env['ANSIBLE_FORKS'] = 36
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env['ANSIBLE_TIMEOUT'] = ansible_timeout
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env['ANSIBLE_GATHER_TIMEOUT'] = 45
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env['ANSIBLE_SSH_RETRIES'] = 3
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env['ANSIBLE_PIPELINING'] = True
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env['ANSIBLE_REMOTE_USER'] = ssh_user
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env['ANSIBLE_STDOUT_CALLBACK'] = output_callback
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env['ANSIBLE_LIBRARY'] = os.path.expanduser(
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'~/.ansible/plugins/modules:'
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'{}:{}:'
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'/usr/share/ansible/plugins/modules:'
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'/usr/share/ceph-ansible/library:'
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'{}/library'.format(
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os.path.join(workdir, 'modules'),
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os.path.join(cwd, 'modules'),
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constants.DEFAULT_VALIDATIONS_BASEDIR
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)
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)
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env['ANSIBLE_LOOKUP_PLUGINS'] = os.path.expanduser(
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'~/.ansible/plugins/lookup:'
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'{}:{}:'
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'/usr/share/ansible/plugins/lookup:'
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'/usr/share/ceph-ansible/plugins/lookup:'
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'{}/lookup_plugins'.format(
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os.path.join(workdir, 'lookup'),
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os.path.join(cwd, 'lookup'),
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constants.DEFAULT_VALIDATIONS_BASEDIR
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)
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)
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env['ANSIBLE_CALLBACK_PLUGINS'] = os.path.expanduser(
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'~/.ansible/plugins/callback:'
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'{}:{}:'
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'/usr/share/ansible/plugins/callback:'
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'/usr/share/ceph-ansible/plugins/callback:'
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'{}/callback_plugins'.format(
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os.path.join(workdir, 'callback'),
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os.path.join(cwd, 'callback'),
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constants.DEFAULT_VALIDATIONS_BASEDIR
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)
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)
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env['ANSIBLE_ACTION_PLUGINS'] = os.path.expanduser(
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'~/.ansible/plugins/action:'
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'{}:{}:'
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'/usr/share/ansible/plugins/action:'
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'/usr/share/ceph-ansible/plugins/actions:'
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'{}/action_plugins'.format(
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os.path.join(workdir, 'action'),
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os.path.join(cwd, 'action'),
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constants.DEFAULT_VALIDATIONS_BASEDIR
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)
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)
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env['ANSIBLE_FILTER_PLUGINS'] = os.path.expanduser(
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'~/.ansible/plugins/filter:'
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'{}:{}:'
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'/usr/share/ansible/plugins/filter:'
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'/usr/share/ceph-ansible/plugins/filter:'
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'{}/filter_plugins'.format(
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os.path.join(workdir, 'filter'),
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os.path.join(cwd, 'filter'),
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constants.DEFAULT_VALIDATIONS_BASEDIR
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)
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)
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env['ANSIBLE_ROLES_PATH'] = os.path.expanduser(
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'~/.ansible/roles:'
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'{}:{}:'
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'/usr/share/ansible/roles:'
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'/usr/share/ceph-ansible/roles:'
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'/etc/ansible/roles:'
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'{}/roles'.format(
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os.path.join(workdir, 'roles'),
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os.path.join(cwd, 'roles'),
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constants.DEFAULT_VALIDATIONS_BASEDIR
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)
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)
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env['ANSIBLE_CALLBACK_WHITELIST'] = callback_whitelist
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env['ANSIBLE_RETRY_FILES_ENABLED'] = False
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env['ANSIBLE_HOST_KEY_CHECKING'] = False
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env['ANSIBLE_TRANSPORT'] = connection
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env['ANSIBLE_CACHE_PLUGIN_TIMEOUT'] = 7200
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if connection == 'local':
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env['ANSIBLE_PYTHON_INTERPRETER'] = sys.executable
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if gathering_policy in ('smart', 'explicit', 'implicit'):
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env['ANSIBLE_GATHERING'] = gathering_policy
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if module_path:
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env['ANSIBLE_LIBRARY'] = ':'.join(
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[env['ANSIBLE_LIBRARY'], module_path]
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)
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try:
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user_pwd = pwd.getpwuid(int(os.getenv('SUDO_UID', os.getuid())))
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except TypeError:
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home = os.path.expanduser('~')
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else:
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home = user_pwd.pw_dir
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env['ANSIBLE_LOG_PATH'] = os.path.join(home, 'ansible.log')
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if key:
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env['ANSIBLE_PRIVATE_KEY_FILE'] = key
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if extra_env_variables:
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if not isinstance(extra_env_variables, dict):
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msg = "extra_env_variables must be a dict"
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self.log.error(msg)
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raise SystemError(msg)
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else:
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env.update(extra_env_variables)
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return env
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def _encode_envvars(self, env):
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"""Encode a hash of values.
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:param env: A hash of key=value items.
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:type env: `dict`.
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"""
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for key, value in env.items():
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env[key] = six.text_type(value)
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else:
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return env
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def run(self, playbook, inventory, workdir, playbook_dir=None,
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connection='smart', output_callback='yaml',
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ssh_user='root', key=None, module_path=None,
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limit_hosts=None, tags=None, skip_tags=None,
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verbosity=0, quiet=False, extra_vars=None,
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gathering_policy='smart',
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extra_env_variables=None, parallel_run=False,
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callback_whitelist=None, ansible_cfg=None,
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ansible_timeout=30, reproduce_command=False,
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fail_on_rc=True):
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if not playbook_dir:
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playbook_dir = workdir
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playbook = self._playbook_check(play=playbook)
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self.log.info(
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'Running Ansible playbook: {},'
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' Working directory: {},'
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' Playbook directory: {}'.format(
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playbook,
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workdir,
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playbook_dir
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)
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)
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ansible_fact_path = self._creates_ansible_fact_dir()
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extravars = self._get_extra_vars(extra_vars)
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callback_whitelist = self._callback_whitelist(callback_whitelist)
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# Set ansible environment variables
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env = _ansible_env_var(output_callback, ssh_user, workdir, connection,
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gathering_policy, module_path, key,
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extra_env_variables)
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command_path = None
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with utils.TempDirs(chdir=False) as ansible_artifact_path:
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if 'ANSIBLE_CONFIG' not in env and not ansible_cfg:
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ansible_cfg = os.path.join(ansible_artifact_path, 'ansible.cfg')
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config = configparser.ConfigParser()
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config.add_section('defaults')
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config.set('defaults', 'internal_poll_interval', '0.05')
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with open(ansible_cfg, 'w') as f:
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config.write(f)
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env['ANSIBLE_CONFIG'] = ansible_cfg
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elif 'ANSIBLE_CONFIG' not in env and ansible_cfg:
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env['ANSIBLE_CONFIG'] = ansible_cfg
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r_opts = {
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'private_data_dir': workdir,
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'project_dir': playbook_dir,
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'inventory': self._inventory(inventory),
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'envvars': self._encode_envvars(env=env),
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'playbook': playbook,
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'verbosity': verbosity,
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'quiet': quiet,
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'extravars': extravars,
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'fact_cache': ansible_fact_path,
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'fact_cache_type': 'jsonfile',
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'artifact_dir': ansible_artifact_path,
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'rotate_artifacts': 256
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}
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if skip_tags:
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r_opts['skip_tags'] = skip_tags
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if tags:
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r_opts['tags'] = tags
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if limit_hosts:
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r_opts['limit'] = limit_hosts
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if parallel_run:
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r_opts['directory_isolation_base_path'] = ansible_artifact_path
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runner_config = ansible_runner.runner_config.RunnerConfig(**r_opts)
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runner_config.prepare()
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# NOTE(cloudnull): overload the output callback after prepare
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# to define the specific format we want.
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# This is only required until PR
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# https://github.com/ansible/ansible-runner/pull/387
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# is merged and released. After this PR has been
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# made available to us, this line should be removed.
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runner_config.env['ANSIBLE_STDOUT_CALLBACK'] = \
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r_opts['envvars']['ANSIBLE_STDOUT_CALLBACK']
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runner = ansible_runner.Runner(config=runner_config)
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status, rc = runner.run()
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return playbook, rc, status
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