diff options
Diffstat (limited to 'docker/docker-puppet.py')
| -rwxr-xr-x | docker/docker-puppet.py | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/docker/docker-puppet.py b/docker/docker-puppet.py index d9d0c255..340a9e9f 100755 --- a/docker/docker-puppet.py +++ b/docker/docker-puppet.py @@ -18,9 +18,11 @@ # that can be used to generate config files or run ad-hoc puppet modules # inside of a container. +import glob import json import logging import os +import sys import subprocess import sys import tempfile @@ -55,6 +57,28 @@ def pull_image(name): log.debug(cmd_stderr) +def match_config_volume(prefix, config): + # Match the mounted config volume - we can't just use the + # key as e.g "novacomute" consumes config-data/nova + volumes = config.get('volumes', []) + config_volume=None + for v in volumes: + if v.startswith(prefix): + config_volume = os.path.relpath( + v.split(":")[0], prefix).split("/")[0] + break + return config_volume + + +def get_config_hash(prefix, config_volume): + hashfile = os.path.join(prefix, "%s.md5sum" % config_volume) + hash_data = None + if os.path.isfile(hashfile): + with open(hashfile) as f: + hash_data = f.read().rstrip() + return hash_data + + def rm_container(name): if os.environ.get('SHOW_DIFF', None): log.info('Diffing container: %s' % name) @@ -197,6 +221,10 @@ def mp_puppet_config((config_volume, puppet_tags, manifest, config_image, volume mkdir -p /var/lib/config-data/${NAME}/var/www cp -a /var/www/* /var/lib/config-data/${NAME}/var/www/ fi + + # Write a checksum of the config-data dir, this is used as a + # salt to trigger container restart when the config changes + tar cf - /var/lib/config-data/${NAME} | md5sum | awk '{print $1}' > /var/lib/config-data/${NAME}.md5sum fi """) @@ -297,5 +325,30 @@ for returncode, config_volume in zip(returncodes, config_volumes): log.error('ERROR configuring %s' % config_volume) success = False + +# Update the startup configs with the config hash we generated above +config_volume_prefix = os.environ.get('CONFIG_VOLUME_PREFIX', '/var/lib/config-data') +log.debug('CONFIG_VOLUME_PREFIX: %s' % config_volume_prefix) +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('/var/lib/tripleo-config/docker-container-startup-config-step_*.json') +for infile in infiles: + with open(infile) as f: + infile_data = json.load(f) + + for k, v in infile_data.iteritems(): + config_volume = match_config_volume(config_volume_prefix, v) + if config_volume: + config_hash = get_config_hash(config_volume_prefix, config_volume) + 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: + json.dump(infile_data, out_f) + if not success: sys.exit(1) |