#!/usr/bin/env python
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
# Shell script tool to run puppet inside of the given docker container image.
# Uses the config file at /var/lib/docker-puppet/docker-puppet.json as a source for a JSON
# array of [config_volume, puppet_tags, manifest, config_image, [volumes]] settings
# that can be used to generate config files or run ad-hoc puppet modules
# inside of a container.
import json
import os
import subprocess
import sys
import tempfile
import multiprocessing
# this is to match what we do in deployed-server
def short_hostname():
subproc = subprocess.Popen(['hostname', '-s'],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
cmd_stdout, cmd_stderr = subproc.communicate()
return cmd_stdout.rstrip()
def pull_image(name):
print('Pulling image: %s' % name)
subproc = subprocess.Popen(['/usr/bin/docker', 'pull', name],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
cmd_stdout, cmd_stderr = subproc.communicate()
print(cmd_stdout)
print(cmd_stderr)
def rm_container(name):
if os.environ.get('SHOW_DIFF', None):
print('Diffing container: %s' % name)
subproc = subprocess.Popen(['/usr/bin/docker', 'diff', name],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
cmd_stdout, cmd_stderr = subproc.communicate()
print(cmd_stdout)
print(cmd_stderr)
print('Removing container: %s' % name)
subproc = subprocess.Popen(['/usr/bin/docker', 'rm', name],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
cmd_stdout, cmd_stderr = subproc.communicate()
print(cmd_stdout)
print(cmd_stderr)
process_count = int(os.environ.get('PROCESS_COUNT',
multiprocessing.cpu_count()))
config_file = os.environ.get('CONFIG', '/var/lib/docker-puppet/docker-puppet.json')
print('docker-puppet')
print('CONFIG: %s' % config_file)
with open(config_file) as f:
json_data = json.load(f)
# To save time we support configuring 'shared' services at the same
# time. For example configuring all of the heat services
# in a single container pass makes sense and will save some time.
# To support this we merge shared settings together here.
#
# We key off of config_volume as this should be the same for a
# given group of services. We are also now specifying the container
# in which the services should be configured. This should match
# in all instances where the volume name is also the same.
configs = {}
for service in (json_data or []):
if service is None:
continue
if isinstance(service, dict):
service = [
service.get('config_volume'),
service.get('puppet_tags'),
service.get('step_config'),
service.get('config_image'),
service.get('volumes', []),
]
config_volume = service[0] or ''
puppet_tags = service[1] or ''
manifest = service[2] or ''
config_image = service[3] or ''
volumes = service[4] if len(service) > 4 else []
if not manifest or not config_image:
continue
print('---------')
print('config_volume %s' % config_volume)
print('puppet_tags %s' % puppet_tags)
print('manifest %s' % manifest)
print('config_image %s' % config_image)
print('volumes %s' % volumes)
# We key off of config volume for all configs.
if config_volume in configs:
# Append puppet tags and manifest.
print("Existing service, appending puppet tags and manifest\n")
if puppet_tags:
configs[config_volume][1] = '%s,%s' % (configs[config_volume][1],
puppet_tags)
if manifest:
configs[config_volume][2] = '%s\n%s' % (configs[config_volume][2],
manifest)
if configs[config_volume][3] != config_image:
print("WARNING: Config containers do not match even though"
" shared volumes are the same!\n")
else:
print("Adding new service\n")
configs[config_volume] = service
print('Service compilation completed.\n')
def mp_puppet_config((config_volume, puppet_tags, manifest, config_image, volumes)):
print('---------')
print('config_volume %s' % config_volume)
print('puppet_tags %s' % puppet_tags)
print('manifest %s' % manifest)
print('config_image %s' % config_image)
print('volumes %s' % volumes)
hostname = short_hostname()
sh_script = '/var/lib/docker-puppet/docker-puppet-%s.sh' % config_volume
with open(sh_script, 'w') as script_file:
os.chmod(script_file.name, 0755)
script_file.write("""#!/bin/bash
set -ex
mkdir -p /etc/puppet
cp -a /tmp/puppet-etc/* /etc/puppet
rm -Rf /etc/puppet/ssl # not in use and causes permission errors
echo '{"step": %(step)s}' > /etc/puppet/hieradata/docker.json
TAGS=""
if [ -n "%(puppet_tags)s" ]; then
TAGS='--tags "%(puppet_tags)s"'
fi
FACTER_hostname=%(hostname)s FACTER_uuid=docker /usr/bin/puppet apply --verbose $TAGS /etc/config.pp
# Disables archiving
if [ -z "%(no_archive)s" ]; then
rm -Rf /var/lib/config-data/%(name)s
# copying etc should be enough for most services
mkdir -p /var/lib/config-data/%(name)s/etc
cp -a /etc/* /var/lib/config-data/%(name)s/etc/
if [ -d /root/ ]; then
cp -a /root/ /var/lib/config-data/%(name)s/root/
fi
if [ -d /var/lib/ironic/tftpboot/ ]; then
mkdir -p /var/lib/config-data/%(name)s/var/lib/ironic/
cp -a /var/lib/ironic/tftpboot/ /var/lib/config-data/%(name)s/var/lib/ironic/tftpboot/
fi
if [ -d /var/lib/ironic/httpboot/ ]; then
mkdir -p /var/lib/config-data/%(name)s/var/lib/ironic/
cp -a /var/lib/ironic/httpboot/ /var/lib/config-data/%(name)s/var/lib/ironic/httpboot/
fi
# apache services may files placed in /var/www/
if [ -d /var/www/ ]; then
mkdir -p /var/lib/config-data/%(name)s/var/www
cp -a /var/www/* /var/lib/config-data/%(name)s/var/www/
fi
fi
""" % {'puppet_tags': puppet_tags, 'name': config_volume,
'hostname': hostname,
'no_archive': os.environ.get('NO_ARCHIVE', ''),
'step': os.environ.get('STEP', '6')})
with tempfile.NamedTemporaryFile() as tmp_man:
with open(tmp_man.name, 'w') as man_file:
man_file.write('include ::tripleo::packages\n')
man_file.write(manifest)
rm_container('docker-puppet-%s' % config_volume)
pull_image(config_image)
dcmd = ['/usr/bin/docker', 'run',
'--user', 'root',
'--name', 'docker-puppet-%s' % config_volume,
'--volume', '%s:/etc/config.pp:ro' % tmp_man.name,
'--volume', '/etc/puppet/:/tmp/puppet-etc/:ro',
'--volume', '/usr/share/openstack-puppet/modules/:/usr/share/openstack-puppet/modules/:ro',
'--volume', '/var/lib/config-data/:/var/lib/config-data/:rw',
'--volume', 'tripleo_logs:/var/log/tripleo/',
'--volume', '%s:%s:rw' % (sh_script, sh_script) ]
for volume in volumes:
if volume:
dcmd.extend(['--volume', volume])
dcmd.extend(['--entrypoint', sh_script])
env = {}
# 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':
print('NET_HOST enabled')
dcmd.extend(['--net', 'host', '--volume',
'/etc/hosts:/etc/hosts:ro'])
dcmd.append(config_image)
subproc = subprocess.Popen(dcmd, stdout=subprocess.PIPE,
stderr=subprocess.PIPE, env=env)
cmd_stdout, cmd_stderr = subproc.communicate()
print(cmd_stdout)
print(cmd_stderr)
if subproc.returncode != 0:
print('Failed running docker-puppet.py for %s' % config_volume)
rm_container('docker-puppet-%s' % config_volume)
return subproc.returncode
# 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 = []
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 []
if puppet_tags:
puppet_tags = "file,file_line,concat,augeas,%s" % puppet_tags
else:
puppet_tags = "file,file_line,concat,augeas"
process_map.append([config_volume, puppet_tags, manifest, config_image, volumes])
for p in process_map:
print '--\n%s' % p
# Fire off processes to perform each configuration. Defaults
# to the number of CPUs on the system.
p = multiprocessing.Pool(process_count)
p.map(mp_puppet_config, process_map)