81c1cae40d
The /var/lib/docker-puppet is deprecated and can now be found under /var/lib/container-puppet. We don't have Docker anymore so we try to avoid confusion in the directories. The directory still exists but a readme file points to the right directory. Change-Id: Ie3d05d18e2471d25c0c4ddaba4feece840b34196
576 lines
24 KiB
Python
Executable File
576 lines
24 KiB
Python
Executable File
#!/usr/bin/env python
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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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# Shell script tool to run puppet inside of the given container image.
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# Uses the config file at /var/lib/container-puppet/container-puppet.json as a source for a JSON
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# array of [config_volume, puppet_tags, manifest, config_image, [volumes]] settings
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# that can be used to generate config files or run ad-hoc puppet modules
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# inside of a container.
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import glob
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import json
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import logging
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import os
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import subprocess
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import sys
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import tempfile
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import time
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import multiprocessing
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from paunch import runner as containers_runner
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logger = None
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sh_script = '/var/lib/container-puppet/container-puppet.sh'
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container_cli = os.environ.get('CONTAINER_CLI', 'docker')
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container_log_stdout_path = os.environ.get('CONTAINER_LOG_STDOUT_PATH',
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'/var/log/containers/stdouts')
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cli_cmd = '/usr/bin/' + container_cli
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def get_logger():
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global logger
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if logger is None:
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logger = logging.getLogger()
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ch = logging.StreamHandler(sys.stdout)
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if os.environ.get('DEBUG') in ['True', 'true'] :
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logger.setLevel(logging.DEBUG)
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ch.setLevel(logging.DEBUG)
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else:
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logger.setLevel(logging.INFO)
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ch.setLevel(logging.INFO)
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formatter = logging.Formatter('%(asctime)s %(levelname)s: '
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'%(process)s -- %(message)s')
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ch.setFormatter(formatter)
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logger.addHandler(ch)
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return logger
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log = get_logger()
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log.info('Running container-puppet')
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config_volume_prefix = os.path.abspath(os.environ.get('CONFIG_VOLUME_PREFIX',
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'/var/lib/config-data'))
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log.debug('CONFIG_VOLUME_PREFIX: %s' % config_volume_prefix)
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if not os.path.exists(config_volume_prefix):
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os.makedirs(config_volume_prefix)
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if container_cli == 'docker':
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cli_dcmd = ['--volume', '/usr/share/openstack-puppet/modules/:/usr/share/openstack-puppet/modules/:ro']
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env = {}
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# FIXME: add log=log once we have paunch 4.0.1 in Pypi and promoted in RDO
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RUNNER = containers_runner.DockerRunner(
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'container-puppet', cont_cmd='docker')
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elif container_cli == 'podman':
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# podman doesn't allow relabeling content in /usr and
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# doesn't support named volumes
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cli_dcmd = ['--security-opt', 'label=disable',
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'--volume', '/usr/share/openstack-puppet/modules/:/usr/share/openstack-puppet/modules/:ro']
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# podman need to find dependent binaries that are in environment
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env = {'PATH': os.environ['PATH']}
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# FIXME: add log=log once we have paunch 4.0.1 in Pypi and promoted in RDO
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RUNNER = containers_runner.PodmanRunner(
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'container-puppet', cont_cmd='podman')
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else:
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log.error('Invalid container_cli: %s' % container_cli)
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sys.exit(1)
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# Controls whether puppet is bind mounted in from the host
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# NOTE: we require this to support the tarball extracted (Deployment archive)
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# puppet modules but our containers now also include puppet-tripleo so we
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# could use either
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if os.environ.get('MOUNT_HOST_PUPPET', 'true') == 'true':
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cli_dcmd.extend(['--volume', '/usr/share/openstack-puppet/modules/:/usr/share/openstack-puppet/modules/:ro'])
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# this is to match what we do in deployed-server
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def short_hostname():
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subproc = subprocess.Popen(['hostname', '-s'],
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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cmd_stdout, cmd_stderr = subproc.communicate()
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return cmd_stdout.decode('utf-8').rstrip()
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def pull_image(name):
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subproc = subprocess.Popen([cli_cmd, 'inspect', name],
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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universal_newlines=True)
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cmd_stdout, cmd_stderr = subproc.communicate()
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retval = subproc.returncode
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if retval == 0:
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log.info('Image already exists: %s' % name)
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return
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retval = -1
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count = 0
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log.info('Pulling image: %s' % name)
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while retval != 0:
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count += 1
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subproc = subprocess.Popen([cli_cmd, 'pull', name],
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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universal_newlines=True)
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cmd_stdout, cmd_stderr = subproc.communicate()
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retval = subproc.returncode
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if retval != 0:
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time.sleep(3)
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log.warning('%s pull failed: %s' % (container_cli, cmd_stderr))
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log.warning('retrying pulling image: %s' % name)
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if count >= 5:
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log.error('Failed to pull image: %s' % name)
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break
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if cmd_stdout:
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log.debug(cmd_stdout)
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if cmd_stderr:
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log.debug(cmd_stderr)
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def match_config_volumes(prefix, config):
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# Match the mounted config volumes - we can't just use the
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# key as e.g "novacomute" consumes config-data/nova
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try:
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volumes = config.get('volumes', [])
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except AttributeError:
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log.error('Error fetching volumes. Prefix: %s - Config: %s' % (prefix, config))
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raise
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return sorted([os.path.dirname(v.split(":")[0]) for v in volumes if
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v.startswith(prefix)])
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def get_config_hash(config_volume):
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hashfile = "%s.md5sum" % config_volume
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log.debug("Looking for hashfile %s for config_volume %s" % (hashfile, config_volume))
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hash_data = None
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if os.path.isfile(hashfile):
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log.debug("Got hashfile %s for config_volume %s" % (hashfile, config_volume))
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with open(hashfile) as f:
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hash_data = f.read().rstrip()
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return hash_data
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def rm_container(name):
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if os.environ.get('SHOW_DIFF', None):
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log.info('Diffing container: %s' % name)
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subproc = subprocess.Popen([cli_cmd, 'diff', name],
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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universal_newlines=True)
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cmd_stdout, cmd_stderr = subproc.communicate()
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if cmd_stdout:
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log.debug(cmd_stdout)
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if cmd_stderr:
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log.debug(cmd_stderr)
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log.info('Removing container: %s' % name)
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subproc = subprocess.Popen([cli_cmd, 'rm', name],
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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universal_newlines=True)
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cmd_stdout, cmd_stderr = subproc.communicate()
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if cmd_stdout:
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log.debug(cmd_stdout)
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if cmd_stderr and \
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cmd_stderr != 'Error response from daemon: ' \
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'No such container: {}\n'.format(name):
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log.debug(cmd_stderr)
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process_count = int(os.environ.get('PROCESS_COUNT',
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multiprocessing.cpu_count()))
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config_file = os.environ.get('CONFIG', '/var/lib/container-puppet/container-puppet.json')
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log.debug('CONFIG: %s' % config_file)
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# If specified, only this config_volume will be used
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config_volume_only = os.environ.get('CONFIG_VOLUME', None)
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with open(config_file) as f:
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json_data = json.load(f)
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# To save time we support configuring 'shared' services at the same
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# time. For example configuring all of the heat services
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# in a single container pass makes sense and will save some time.
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# To support this we merge shared settings together here.
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#
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# We key off of config_volume as this should be the same for a
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# given group of services. We are also now specifying the container
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# in which the services should be configured. This should match
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# in all instances where the volume name is also the same.
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configs = {}
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for service in (json_data or []):
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if service is None:
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continue
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if isinstance(service, dict):
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service = [
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service.get('config_volume'),
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service.get('puppet_tags'),
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service.get('step_config'),
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service.get('config_image'),
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service.get('volumes', []),
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service.get('privileged', False),
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]
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config_volume = service[0] or ''
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puppet_tags = service[1] or ''
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manifest = service[2] or ''
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config_image = service[3] or ''
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volumes = service[4] if len(service) > 4 else []
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privileged = service[5] if len(service) > 5 else False
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if not manifest or not config_image:
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continue
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log.debug('config_volume %s' % config_volume)
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log.debug('puppet_tags %s' % puppet_tags)
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log.debug('manifest %s' % manifest)
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log.debug('config_image %s' % config_image)
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log.debug('volumes %s' % volumes)
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log.debug('privileged %s' % privileged)
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# We key off of config volume for all configs.
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if config_volume in configs:
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# Append puppet tags and manifest.
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log.debug("Existing service, appending puppet tags and manifest")
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if puppet_tags:
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configs[config_volume][1] = '%s,%s' % (configs[config_volume][1],
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puppet_tags)
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if manifest:
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configs[config_volume][2] = '%s\n%s' % (configs[config_volume][2],
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manifest)
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if configs[config_volume][3] != config_image:
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log.warning("Config containers do not match even though"
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" shared volumes are the same!")
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if volumes:
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configs[config_volume][4].extend(volumes)
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else:
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if not config_volume_only or (config_volume_only == config_volume):
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log.debug("Adding new service")
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configs[config_volume] = service
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else:
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log.debug("Ignoring %s due to $CONFIG_VOLUME=%s" %
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(config_volume, config_volume_only))
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log.info('Service compilation completed.')
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if not os.path.exists(sh_script):
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with open(sh_script, 'w') as script_file:
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os.chmod(script_file.name, 0o755)
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script_file.write("""#!/bin/bash
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set -ex
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mkdir -p /etc/puppet
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cp -dR /tmp/puppet-etc/* /etc/puppet
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rm -Rf /etc/puppet/ssl # not in use and causes permission errors
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echo "{\\"step\\": $STEP}" > /etc/puppet/hieradata/docker_puppet.json
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TAGS=""
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if [ -n "$PUPPET_TAGS" ]; then
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TAGS="--tags \"$PUPPET_TAGS\""
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fi
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CHECK_MODE=""
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if [ -d "/tmp/puppet-check-mode" ]; then
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mkdir -p /etc/puppet/check-mode
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cp -a /tmp/puppet-check-mode/* /etc/puppet/check-mode
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CHECK_MODE="--hiera_config /etc/puppet/check-mode/hiera.yaml"
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fi
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# Create a reference timestamp to easily find all files touched by
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# puppet. The sync ensures we get all the files we want due to
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# different timestamp.
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origin_of_time=/var/lib/config-data/${NAME}.origin_of_time
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touch $origin_of_time
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sync
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export NET_HOST="${NET_HOST:-false}"
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set +e
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if [ "$NET_HOST" == "false" ]; then
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export FACTER_hostname=$HOSTNAME
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fi
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# $::deployment_type in puppet-tripleo
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export FACTER_deployment_type=containers
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export FACTER_uuid=$(cat /sys/class/dmi/id/product_uuid | tr '[:upper:]' '[:lower:]')
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/usr/bin/puppet apply --summarize \
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--detailed-exitcodes \
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--color=false \
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--logdest syslog \
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--logdest console \
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--modulepath=/etc/puppet/modules:/usr/share/openstack-puppet/modules \
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$TAGS \
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$CHECK_MODE \
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/etc/config.pp
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rc=$?
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set -e
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if [ $rc -ne 2 -a $rc -ne 0 ]; then
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exit $rc
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fi
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# Disables archiving
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if [ -z "$NO_ARCHIVE" ]; then
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archivedirs=("/etc" "/root" "/opt" "/var/lib/ironic/tftpboot" "/var/lib/ironic/httpboot" "/var/www" "/var/spool/cron" "/var/lib/nova/.ssh")
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rsync_srcs=""
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for d in "${archivedirs[@]}"; do
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if [ -d "$d" ]; then
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rsync_srcs+=" $d"
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fi
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done
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# On stack update, if a password was changed in a config file,
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# some services (e.g. mysql) must change their internal state
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# (e.g. password in mysql DB) when paunch restarts them; and
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# they need the old password to achieve that.
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# For those services, we update the config hash to notify
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# paunch that a restart is needed, but we do not update the
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# password file in container-puppet if the file already existed
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# before and let the service regenerate it instead.
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password_files="/root/.my.cnf"
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exclude_files=""
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for p in $password_files; do
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if [ -f "$p" -a -f "/var/lib/config-data/${NAME}$p" ]; then
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exclude_files+=" --exclude=$p"
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fi
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done
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rsync -a -R --delay-updates --delete-after $exclude_files $rsync_srcs /var/lib/config-data/${NAME}
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# Also make a copy of files modified during puppet run
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# This is useful for debugging
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echo "Gathering files modified after $(stat -c '%y' $origin_of_time)"
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mkdir -p /var/lib/config-data/puppet-generated/${NAME}
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rsync -a -R -0 --delay-updates --delete-after $exclude_files \
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--files-from=<(find $rsync_srcs -newer $origin_of_time -not -path '/etc/puppet*' -print0) \
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/ /var/lib/config-data/puppet-generated/${NAME}
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# Write a checksum of the config-data dir, this is used as a
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# salt to trigger container restart when the config changes
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# note: while being excluded from the output, password files
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# are still included in checksum computation
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additional_checksum_files=""
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excluded_original_passwords=""
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for p in $password_files; do
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if [ -f "$p" ]; then
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additional_checksum_files+=" $p"
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excluded_original_passwords+=" --exclude=/var/lib/config-data/*${p}"
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fi
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done
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# We need to exclude the swift ring backups as those change over time and
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# containers do not need to restart if they change
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EXCLUDE=--exclude='*/etc/swift/backups/*'\ --exclude='*/etc/libvirt/passwd.db'\ ${excluded_original_passwords}
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# We need to repipe the tar command through 'tar xO' to force text
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# output because otherwise the sed command cannot work. The sed is
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# needed because puppet puts timestamps as comments in cron and
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# parsedfile resources, hence triggering a change at every redeploy
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tar -c --mtime='1970-01-01' $EXCLUDE -f - /var/lib/config-data/${NAME} $additional_checksum_files | tar xO | \
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sed '/^#.*HEADER.*/d' | md5sum | awk '{print $1}' > /var/lib/config-data/${NAME}.md5sum
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tar -c --mtime='1970-01-01' $EXCLUDE -f - /var/lib/config-data/puppet-generated/${NAME} $additional_checksum_files --mtime='1970-01-01' | tar xO \
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| sed '/^#.*HEADER.*/d' | md5sum | awk '{print $1}' > /var/lib/config-data/puppet-generated/${NAME}.md5sum
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fi
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""")
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def mp_puppet_config(*args):
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(config_volume,puppet_tags,manifest,config_image,volumes,privileged,check_mode) = args[0]
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log = get_logger()
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log.info('Starting configuration of %s using image %s' % (config_volume,
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config_image))
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log.debug('config_volume %s' % config_volume)
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log.debug('puppet_tags %s' % puppet_tags)
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log.debug('manifest %s' % manifest)
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log.debug('config_image %s' % config_image)
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log.debug('volumes %s' % volumes)
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log.debug('privileged %s' % privileged)
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log.debug('check_mode %s' % check_mode)
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with tempfile.NamedTemporaryFile() as tmp_man:
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with open(tmp_man.name, 'w') as man_file:
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man_file.write('include ::tripleo::packages\n')
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man_file.write(manifest)
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uname = RUNNER.unique_container_name('container-puppet-%s' %
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config_volume)
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rm_container(uname)
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pull_image(config_image)
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common_dcmd = [cli_cmd, 'run',
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'--user', 'root',
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'--name', uname,
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'--env', 'PUPPET_TAGS=%s' % puppet_tags,
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'--env', 'NAME=%s' % config_volume,
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'--env', 'HOSTNAME=%s' % short_hostname(),
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'--env', 'NO_ARCHIVE=%s' % os.environ.get('NO_ARCHIVE', ''),
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'--env', 'STEP=%s' % os.environ.get('STEP', '6'),
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'--env', 'NET_HOST=%s' % os.environ.get('NET_HOST', 'false'),
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'--log-driver', 'json-file',
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'--volume', '/etc/localtime:/etc/localtime:ro',
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'--volume', '%s:/etc/config.pp:ro' % tmp_man.name,
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'--volume', '/etc/puppet/:/tmp/puppet-etc/:ro',
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# OpenSSL trusted CA injection
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'--volume', '/etc/pki/ca-trust/extracted:/etc/pki/ca-trust/extracted:ro',
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'--volume', '/etc/pki/tls/certs/ca-bundle.crt:/etc/pki/tls/certs/ca-bundle.crt:ro',
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'--volume', '/etc/pki/tls/certs/ca-bundle.trust.crt:/etc/pki/tls/certs/ca-bundle.trust.crt:ro',
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'--volume', '/etc/pki/tls/cert.pem:/etc/pki/tls/cert.pem:ro',
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'--volume', '%s:/var/lib/config-data/:rw' % config_volume_prefix,
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# Syslog socket for puppet logs
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'--volume', '/dev/log:/dev/log:rw']
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if privileged:
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common_dcmd.push('--privileged')
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if container_cli == 'podman':
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log_path = os.path.join(container_log_stdout_path, uname)
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logging = ['--log-opt',
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'path=%s.log' % log_path]
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|
common_dcmd.extend(logging)
|
|
|
|
|
|
dcmd = common_dcmd + cli_dcmd
|
|
|
|
if check_mode:
|
|
dcmd.extend([
|
|
'--volume',
|
|
'/etc/puppet/check-mode:/tmp/puppet-check-mode:ro'])
|
|
|
|
for volume in volumes:
|
|
if volume:
|
|
dcmd.extend(['--volume', volume])
|
|
|
|
dcmd.extend(['--entrypoint', sh_script])
|
|
|
|
if container_cli == 'docker':
|
|
# NOTE(flaper87): Always copy the DOCKER_* environment variables as
|
|
# they contain the access data for the docker daemon.
|
|
for k in filter(lambda k: k.startswith('DOCKER'), os.environ.keys()):
|
|
env[k] = os.environ.get(k)
|
|
|
|
if os.environ.get('NET_HOST', 'false') == 'true':
|
|
log.debug('NET_HOST enabled')
|
|
dcmd.extend(['--net', 'host', '--volume',
|
|
'/etc/hosts:/etc/hosts:ro'])
|
|
|
|
# script injection as the last mount to make sure it's accessible
|
|
# https://github.com/containers/libpod/issues/1844
|
|
dcmd.extend(['--volume', '%s:%s:ro' % (sh_script, sh_script)])
|
|
|
|
dcmd.append(config_image)
|
|
|
|
# https://github.com/containers/libpod/issues/1844
|
|
# This block will run "container_cli" run 5 times before to fail.
|
|
retval = -1
|
|
count = 0
|
|
log.debug('Running %s command: %s' % (container_cli, ' '.join(dcmd)))
|
|
while count < 3:
|
|
if count == 0:
|
|
cmd = dcmd
|
|
else:
|
|
cmd = [cli_cmd, 'start', '-a', uname]
|
|
count += 1
|
|
subproc = subprocess.Popen(cmd, stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE, env=env,
|
|
universal_newlines=True)
|
|
cmd_stdout, cmd_stderr = subproc.communicate()
|
|
retval = subproc.returncode
|
|
# puppet with --detailed-exitcodes will return 0 for success and no changes
|
|
# and 2 for success and resource changes. Other numbers are failures
|
|
if retval in [0,2]:
|
|
if cmd_stdout:
|
|
log.debug('%s run succeeded: %s' % (cmd, cmd_stdout))
|
|
if cmd_stderr:
|
|
log.warning(cmd_stderr)
|
|
# only delete successful runs, for debugging
|
|
rm_container(uname)
|
|
break
|
|
time.sleep(3)
|
|
log.warning('%s run failed after %s attempt(s): %s' % (cmd,
|
|
cmd_stderr,
|
|
count))
|
|
log.warning('Retrying running container: %s' % config_volume)
|
|
else:
|
|
if cmd_stdout:
|
|
log.debug(cmd_stdout)
|
|
if cmd_stderr:
|
|
log.debug(cmd_stderr)
|
|
log.error('Failed running container for %s' % config_volume)
|
|
log.info('Finished processing puppet configs for %s' % (config_volume))
|
|
return retval
|
|
|
|
# Holds all the information for each process to consume.
|
|
# Instead of starting them all linearly we run them using a process
|
|
# pool. This creates a list of arguments for the above function
|
|
# to consume.
|
|
process_map = []
|
|
|
|
check_mode = int(os.environ.get('CHECK_MODE', 0))
|
|
log.debug('CHECK_MODE: %s' % check_mode)
|
|
|
|
for config_volume in configs:
|
|
|
|
service = configs[config_volume]
|
|
puppet_tags = service[1] or ''
|
|
manifest = service[2] or ''
|
|
config_image = service[3] or ''
|
|
volumes = service[4] if len(service) > 4 else []
|
|
privileged = service[5] if len(service) > 5 else False
|
|
|
|
if puppet_tags:
|
|
puppet_tags = "file,file_line,concat,augeas,cron,%s" % puppet_tags
|
|
else:
|
|
puppet_tags = "file,file_line,concat,augeas,cron"
|
|
|
|
process_map.append([config_volume, puppet_tags, manifest, config_image,
|
|
volumes, privileged, check_mode])
|
|
|
|
for p in process_map:
|
|
log.debug('- %s' % p)
|
|
|
|
# Fire off processes to perform each configuration. Defaults
|
|
# to the number of CPUs on the system.
|
|
log.info('Starting multiprocess configuration steps. Using %d processes.' %
|
|
process_count)
|
|
p = multiprocessing.Pool(process_count)
|
|
returncodes = list(p.map(mp_puppet_config, process_map))
|
|
config_volumes = [pm[0] for pm in process_map]
|
|
success = True
|
|
for returncode, config_volume in zip(returncodes, config_volumes):
|
|
if returncode not in [0, 2]:
|
|
log.error('ERROR configuring %s' % config_volume)
|
|
success = False
|
|
|
|
|
|
# Update the startup configs with the config hash we generated above
|
|
startup_configs = os.environ.get('STARTUP_CONFIG_PATTERN', '/var/lib/tripleo-config/docker-container-startup-config-step_*.json')
|
|
log.debug('STARTUP_CONFIG_PATTERN: %s' % startup_configs)
|
|
infiles = glob.glob(startup_configs)
|
|
for infile in infiles:
|
|
with open(infile) as f:
|
|
infile_data = json.load(f)
|
|
|
|
for k, v in iter(infile_data.items()):
|
|
config_volumes = match_config_volumes(config_volume_prefix, v)
|
|
config_hashes = [get_config_hash(volume_path) for volume_path in config_volumes]
|
|
config_hashes = filter(None, config_hashes)
|
|
config_hash = '-'.join(config_hashes)
|
|
if config_hash:
|
|
env = v.get('environment', [])
|
|
env.append("TRIPLEO_CONFIG_HASH=%s" % config_hash)
|
|
log.debug("Updating config hash for %s, config_volume=%s hash=%s" % (k, config_volume, config_hash))
|
|
infile_data[k]['environment'] = env
|
|
|
|
outfile = os.path.join(os.path.dirname(infile), "hashed-" + os.path.basename(infile))
|
|
with open(outfile, 'w') as out_f:
|
|
os.chmod(out_f.name, 0o600)
|
|
json.dump(infile_data, out_f, indent=2)
|
|
|
|
if not success:
|
|
sys.exit(1)
|
|
|