7f5c616a94
This allows to optionally add volumes, where we could use a heat conditional to either put the volume path we want or put an empty string which should be safely skipped. Change-Id: I68f91ffdd8ceb14735adad1322fcf124c47b160c
263 lines
9.9 KiB
Python
Executable File
263 lines
9.9 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 docker container image.
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# Uses the config file at /var/lib/docker-puppet/docker-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 json
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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 multiprocessing
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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.rstrip()
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def pull_image(name):
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print('Pulling image: %s' % name)
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subproc = subprocess.Popen(['/usr/bin/docker', 'pull', name],
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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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print(cmd_stdout)
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print(cmd_stderr)
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def rm_container(name):
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if os.environ.get('SHOW_DIFF', None):
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print('Diffing container: %s' % name)
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subproc = subprocess.Popen(['/usr/bin/docker', 'diff', name],
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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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print(cmd_stdout)
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print(cmd_stderr)
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print('Removing container: %s' % name)
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subproc = subprocess.Popen(['/usr/bin/docker', 'rm', name],
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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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print(cmd_stdout)
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print(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/docker-puppet/docker-puppet.json')
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print('docker-puppet')
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print('CONFIG: %s' % config_file)
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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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]
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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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if not manifest or not config_image:
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continue
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print('---------')
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print('config_volume %s' % config_volume)
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print('puppet_tags %s' % puppet_tags)
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print('manifest %s' % manifest)
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print('config_image %s' % config_image)
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print('volumes %s' % volumes)
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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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print("Existing service, appending puppet tags and manifest\n")
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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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print("WARNING: Config containers do not match even though"
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" shared volumes are the same!\n")
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else:
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print("Adding new service\n")
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configs[config_volume] = service
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print('Service compilation completed.\n')
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def mp_puppet_config((config_volume, puppet_tags, manifest, config_image, volumes)):
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print('---------')
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print('config_volume %s' % config_volume)
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print('puppet_tags %s' % puppet_tags)
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print('manifest %s' % manifest)
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print('config_image %s' % config_image)
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print('volumes %s' % volumes)
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hostname = short_hostname()
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sh_script = '/var/lib/docker-puppet/docker-puppet-%s.sh' % config_volume
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with open(sh_script, 'w') as script_file:
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os.chmod(script_file.name, 0755)
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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 -a /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)s}' > /etc/puppet/hieradata/docker.json
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TAGS=""
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if [ -n "%(puppet_tags)s" ]; then
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TAGS='--tags "%(puppet_tags)s"'
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fi
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FACTER_hostname=%(hostname)s FACTER_uuid=docker /usr/bin/puppet apply --verbose $TAGS /etc/config.pp
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# Disables archiving
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if [ -z "%(no_archive)s" ]; then
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rm -Rf /var/lib/config-data/%(name)s
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# copying etc should be enough for most services
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mkdir -p /var/lib/config-data/%(name)s/etc
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cp -a /etc/* /var/lib/config-data/%(name)s/etc/
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if [ -d /root/ ]; then
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cp -a /root/ /var/lib/config-data/%(name)s/root/
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fi
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if [ -d /var/lib/ironic/tftpboot/ ]; then
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mkdir -p /var/lib/config-data/%(name)s/var/lib/ironic/
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cp -a /var/lib/ironic/tftpboot/ /var/lib/config-data/%(name)s/var/lib/ironic/tftpboot/
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fi
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if [ -d /var/lib/ironic/httpboot/ ]; then
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mkdir -p /var/lib/config-data/%(name)s/var/lib/ironic/
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cp -a /var/lib/ironic/httpboot/ /var/lib/config-data/%(name)s/var/lib/ironic/httpboot/
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fi
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# apache services may files placed in /var/www/
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if [ -d /var/www/ ]; then
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mkdir -p /var/lib/config-data/%(name)s/var/www
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cp -a /var/www/* /var/lib/config-data/%(name)s/var/www/
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fi
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fi
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""" % {'puppet_tags': puppet_tags, 'name': config_volume,
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'hostname': hostname,
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'no_archive': os.environ.get('NO_ARCHIVE', ''),
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'step': os.environ.get('STEP', '6')})
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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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rm_container('docker-puppet-%s' % config_volume)
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pull_image(config_image)
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dcmd = ['/usr/bin/docker', 'run',
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'--user', 'root',
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'--name', 'docker-puppet-%s' % config_volume,
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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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'--volume', '/usr/share/openstack-puppet/modules/:/usr/share/openstack-puppet/modules/:ro',
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'--volume', '/var/lib/config-data/:/var/lib/config-data/:rw',
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'--volume', 'tripleo_logs:/var/log/tripleo/',
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'--volume', '%s:%s:rw' % (sh_script, sh_script) ]
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for volume in volumes:
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if volume:
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dcmd.extend(['--volume', volume])
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dcmd.extend(['--entrypoint', sh_script])
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env = {}
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# NOTE(flaper87): Always copy the DOCKER_* environment variables as
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# they contain the access data for the docker daemon.
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for k in filter(lambda k: k.startswith('DOCKER'), os.environ.keys()):
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env[k] = os.environ.get(k)
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if os.environ.get('NET_HOST', 'false') == 'true':
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print('NET_HOST enabled')
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dcmd.extend(['--net', 'host', '--volume',
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'/etc/hosts:/etc/hosts:ro'])
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dcmd.append(config_image)
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subproc = subprocess.Popen(dcmd, stdout=subprocess.PIPE,
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stderr=subprocess.PIPE, env=env)
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cmd_stdout, cmd_stderr = subproc.communicate()
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print(cmd_stdout)
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print(cmd_stderr)
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if subproc.returncode != 0:
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print('Failed running docker-puppet.py for %s' % config_volume)
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rm_container('docker-puppet-%s' % config_volume)
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return subproc.returncode
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# Holds all the information for each process to consume.
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# Instead of starting them all linearly we run them using a process
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# pool. This creates a list of arguments for the above function
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# to consume.
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process_map = []
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for config_volume in configs:
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service = configs[config_volume]
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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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if puppet_tags:
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puppet_tags = "file,file_line,concat,%s" % puppet_tags
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else:
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puppet_tags = "file,file_line,concat"
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process_map.append([config_volume, puppet_tags, manifest, config_image, volumes])
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for p in process_map:
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print '--\n%s' % p
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# Fire off processes to perform each configuration. Defaults
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# to the number of CPUs on the system.
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p = multiprocessing.Pool(process_count)
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p.map(mp_puppet_config, process_map)
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