261 lines
7.8 KiB
Python
261 lines
7.8 KiB
Python
# Copyright 2016 Canonical Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os
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from collections import OrderedDict
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from subprocess import check_call
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from charmhelpers.contrib.openstack import context, templating
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from charmhelpers.contrib.openstack.utils import (
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configure_installation_source,
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get_os_codename_install_source,
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os_release,
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token_cache_pkgs,
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enable_memcache,
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CompareOpenStackReleases,
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)
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from charmhelpers.fetch import (
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add_source,
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apt_install,
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apt_update,
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apt_upgrade,
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)
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from charmhelpers.core.hookenv import (
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log,
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config,
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)
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from charmhelpers.core.host import (
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lsb_release,
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service_start,
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service_stop,
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CompareHostReleases,
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)
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from heat_context import (
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API_PORTS,
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HeatIdentityServiceContext,
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HeatSecurityContext,
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InstanceUserContext,
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HeatApacheSSLContext,
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HeatHAProxyContext,
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)
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TEMPLATES = 'templates/'
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# The interface is said to be satisfied if anyone of the interfaces in
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# the list has a complete context.
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REQUIRED_INTERFACES = {
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'database': ['shared-db'],
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'messaging': ['amqp'],
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'identity': ['identity-service'],
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}
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BASE_PACKAGES = [
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'python-keystoneclient',
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'python-swiftclient', # work-around missing epoch in juno heat package
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'python-six',
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'uuid',
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'apache2',
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'haproxy',
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]
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VERSION_PACKAGE = 'heat-common'
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BASE_SERVICES = [
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'heat-api',
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'heat-api-cfn',
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'heat-engine'
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]
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# Cluster resource used to determine leadership when hacluster'd
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CLUSTER_RES = 'grp_heat_vips'
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SVC = 'heat'
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HEAT_DIR = '/etc/heat'
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HEAT_CONF = '/etc/heat/heat.conf'
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HEAT_API_PASTE = '/etc/heat/api-paste.ini'
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HAPROXY_CONF = '/etc/haproxy/haproxy.cfg'
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HTTPS_APACHE_CONF = '/etc/apache2/sites-available/openstack_https_frontend'
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HTTPS_APACHE_24_CONF = os.path.join('/etc/apache2/sites-available',
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'openstack_https_frontend.conf')
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ADMIN_OPENRC = '/root/admin-openrc-v3'
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MEMCACHED_CONF = '/etc/memcached.conf'
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CONFIG_FILES = OrderedDict([
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(HEAT_CONF, {
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'services': BASE_SERVICES,
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'contexts': [context.AMQPContext(ssl_dir=HEAT_DIR),
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context.SharedDBContext(relation_prefix='heat',
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ssl_dir=HEAT_DIR),
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context.OSConfigFlagContext(),
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context.InternalEndpointContext(),
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HeatIdentityServiceContext(service=SVC, service_user=SVC),
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HeatHAProxyContext(),
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HeatSecurityContext(),
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InstanceUserContext(),
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context.SyslogContext(),
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context.LogLevelContext(),
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context.WorkerConfigContext(),
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context.BindHostContext(),
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context.MemcacheContext(),
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context.OSConfigFlagContext()],
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}),
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(HEAT_API_PASTE, {
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'services': [s for s in BASE_SERVICES if 'api' in s],
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'contexts': [HeatIdentityServiceContext()],
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}),
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(HAPROXY_CONF, {
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'contexts': [context.HAProxyContext(singlenode_mode=True),
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HeatHAProxyContext()],
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'services': ['haproxy'],
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}),
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(HTTPS_APACHE_CONF, {
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'contexts': [HeatApacheSSLContext()],
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'services': ['apache2'],
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}),
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(HTTPS_APACHE_24_CONF, {
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'contexts': [HeatApacheSSLContext()],
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'services': ['apache2'],
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}),
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(ADMIN_OPENRC, {
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'contexts': [HeatIdentityServiceContext(service=SVC,
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service_user=SVC)],
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'services': []
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}),
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(MEMCACHED_CONF, {
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'hook_contexts': [context.MemcacheContext()],
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'services': ['memcached'],
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}),
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])
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def register_configs():
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release = os_release('heat-common')
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configs = templating.OSConfigRenderer(templates_dir=TEMPLATES,
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openstack_release=release)
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confs = [HEAT_CONF, HEAT_API_PASTE, HAPROXY_CONF, ADMIN_OPENRC]
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for conf in confs:
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configs.register(conf, CONFIG_FILES[conf]['contexts'])
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if os.path.exists('/etc/apache2/conf-available'):
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configs.register(HTTPS_APACHE_24_CONF,
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CONFIG_FILES[HTTPS_APACHE_24_CONF]['contexts'])
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else:
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configs.register(HTTPS_APACHE_CONF,
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CONFIG_FILES[HTTPS_APACHE_CONF]['contexts'])
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if enable_memcache(release=release):
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configs.register(MEMCACHED_CONF,
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CONFIG_FILES[MEMCACHED_CONF]['hook_contexts'])
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return configs
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def api_port(service):
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return API_PORTS[service]
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def determine_packages():
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# currently all packages match service names
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packages = BASE_PACKAGES + BASE_SERVICES
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packages.extend(token_cache_pkgs(source=config('openstack-origin')))
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return list(set(packages))
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def do_openstack_upgrade(configs):
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"""Perform an uprade of heat.
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Takes care of upgrading packages,
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rewriting configs and potentially any other post-upgrade
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actions.
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:param configs: The charms main OSConfigRenderer object.
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"""
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new_src = config('openstack-origin')
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new_os_rel = get_os_codename_install_source(new_src)
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log('Performing OpenStack upgrade to %s.' % (new_os_rel))
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configure_installation_source(new_src)
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dpkg_opts = [
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'--option', 'Dpkg::Options::=--force-confnew',
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'--option', 'Dpkg::Options::=--force-confdef',
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]
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apt_update()
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apt_upgrade(options=dpkg_opts, fatal=True, dist=True)
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packages = BASE_PACKAGES + BASE_SERVICES
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apt_install(packages=packages, options=dpkg_opts, fatal=True)
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# set CONFIGS to load templates from new release and regenerate config
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configs.set_release(openstack_release=new_os_rel)
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configs.write_all()
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migrate_database()
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def restart_map():
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"""Restarts on config change.
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Determine the correct resource map to be passed to
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charmhelpers.core.restart_on_change() based on the services configured.
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:returns: dict: A dictionary mapping config file to lists of services
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that should be restarted when file changes.
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"""
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_map = []
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for f, ctxt in CONFIG_FILES.iteritems():
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svcs = []
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for svc in ctxt['services']:
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svcs.append(svc)
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if svcs:
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_map.append((f, svcs))
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return OrderedDict(_map)
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def services():
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"""Returns a list of services associate with this charm"""
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_services = []
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for v in restart_map().values():
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_services = _services + v
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return list(set(_services))
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def migrate_database():
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"""Runs heat-manage to initialize a new database or migrate existing"""
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log('Migrating the heat database.')
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[service_stop(s) for s in services()]
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check_call(['heat-manage', 'db_sync'])
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[service_start(s) for s in services()]
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def setup_ipv6():
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ubuntu_rel = lsb_release()['DISTRIB_CODENAME'].lower()
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if CompareHostReleases(ubuntu_rel) < "trusty":
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raise Exception("IPv6 is not supported in the charms for Ubuntu "
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"versions less than Trusty 14.04")
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# Need haproxy >= 1.5.3 for ipv6 so for Trusty if we are <= Kilo we need to
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# use trusty-backports otherwise we can use the UCA.
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if (ubuntu_rel == 'trusty' and
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CompareOpenStackReleases(os_release('heat-common')) < 'liberty'):
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add_source('deb http://archive.ubuntu.com/ubuntu trusty-backports '
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'main')
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apt_update()
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apt_install('haproxy/trusty-backports', fatal=True)
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