e57e006015
- sync charmhelpers with fix-alpha helpers - fix up code where the alpha comparisons are done - fix tests which assumed mocks would just work on os_release() Change-Id: I752198f807bc82f07f2a50e295c4d2936c3ad745 Related-Bug: #1659575
585 lines
20 KiB
Python
585 lines
20 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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# vim: set ts=4:et
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import grp
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import horizon_contexts
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import os
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import pwd
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import subprocess
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import shutil
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import time
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from collections import OrderedDict
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import charmhelpers.contrib.openstack.context as context
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import charmhelpers.contrib.openstack.templating as 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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git_install_requested,
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git_clone_and_install,
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git_default_repos,
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os_release,
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git_src_dir,
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git_pip_venv_dir,
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git_yaml_value,
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pause_unit,
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resume_unit,
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make_assess_status_func,
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is_unit_paused_set,
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os_application_version_set,
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CompareOpenStackReleases,
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)
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from charmhelpers.contrib.python.packages import (
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pip_install,
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)
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from charmhelpers.core.hookenv import (
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config,
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log
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)
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from charmhelpers.core.host import (
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adduser,
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add_group,
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add_user_to_group,
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cmp_pkgrevno,
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lsb_release,
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mkdir,
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service_restart,
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path_hash,
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service,
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CompareHostReleases,
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)
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from charmhelpers.fetch import (
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apt_upgrade,
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apt_update,
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add_source,
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apt_install
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)
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BASE_PACKAGES = [
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'haproxy',
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'memcached',
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'openstack-dashboard',
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'openstack-dashboard-ubuntu-theme',
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'python-keystoneclient',
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'python-memcache',
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'python-novaclient',
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]
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VERSION_PACKAGE = 'openstack-dashboard'
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BASE_GIT_PACKAGES = [
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'apache2',
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'libapache2-mod-wsgi',
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'libffi-dev',
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'libpcre3-dev',
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'libssl-dev',
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'libxml2-dev',
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'libxslt1-dev',
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'libyaml-dev',
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'python-dev',
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'python-lesscpy',
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'python-pip',
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'python-setuptools',
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'zlib1g-dev',
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]
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REQUIRED_INTERFACES = {
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'identity': ['identity-service'],
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}
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# ubuntu packages that should not be installed when deploying from git
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GIT_PACKAGE_BLACKLIST = [
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'openstack-dashboard',
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'openstack-dashboard-ubuntu-theme',
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'python-keystoneclient',
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'python-novaclient',
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]
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APACHE_CONF_DIR = "/etc/apache2"
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LOCAL_SETTINGS = "/etc/openstack-dashboard/local_settings.py"
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DASHBOARD_CONF_DIR = "/etc/openstack-dashboard/"
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HAPROXY_CONF = "/etc/haproxy/haproxy.cfg"
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APACHE_CONF = "%s/conf.d/openstack-dashboard.conf" % (APACHE_CONF_DIR)
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APACHE_24_CONF = "%s/conf-available/openstack-dashboard.conf" \
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% (APACHE_CONF_DIR)
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PORTS_CONF = "%s/ports.conf" % (APACHE_CONF_DIR)
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APACHE_24_SSL = "%s/sites-available/default-ssl.conf" % (APACHE_CONF_DIR)
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APACHE_24_DEFAULT = "%s/sites-available/000-default.conf" % (APACHE_CONF_DIR)
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APACHE_SSL = "%s/sites-available/default-ssl" % (APACHE_CONF_DIR)
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APACHE_DEFAULT = "%s/sites-available/default" % (APACHE_CONF_DIR)
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INSTALL_DIR = "/usr/share/openstack-dashboard"
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ROUTER_SETTING = ('/usr/share/openstack-dashboard/openstack_dashboard/enabled/'
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'_40_router.py')
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KEYSTONEV3_POLICY = ('/usr/share/openstack-dashboard/openstack_dashboard/conf/'
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'keystonev3_policy.json')
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TEMPLATES = 'templates'
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CONFIG_FILES = OrderedDict([
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(LOCAL_SETTINGS, {
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'hook_contexts': [horizon_contexts.HorizonContext(),
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horizon_contexts.IdentityServiceContext(),
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context.SyslogContext(),
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horizon_contexts.LocalSettingsContext()],
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'services': ['apache2', 'memcached']
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}),
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(APACHE_CONF, {
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'hook_contexts': [horizon_contexts.HorizonContext(),
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context.SyslogContext()],
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'services': ['apache2', 'memcached'],
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}),
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(APACHE_24_CONF, {
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'hook_contexts': [horizon_contexts.HorizonContext(),
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context.SyslogContext()],
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'services': ['apache2', 'memcached'],
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}),
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(APACHE_SSL, {
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'hook_contexts': [horizon_contexts.ApacheSSLContext(),
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horizon_contexts.ApacheContext()],
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'services': ['apache2', 'memcached'],
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}),
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(APACHE_24_SSL, {
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'hook_contexts': [horizon_contexts.ApacheSSLContext(),
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horizon_contexts.ApacheContext()],
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'services': ['apache2', 'memcached'],
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}),
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(APACHE_DEFAULT, {
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'hook_contexts': [horizon_contexts.ApacheContext()],
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'services': ['apache2', 'memcached'],
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}),
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(APACHE_24_DEFAULT, {
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'hook_contexts': [horizon_contexts.ApacheContext()],
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'services': ['apache2', 'memcached'],
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}),
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(PORTS_CONF, {
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'hook_contexts': [horizon_contexts.ApacheContext()],
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'services': ['apache2', 'memcached'],
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}),
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(HAPROXY_CONF, {
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'hook_contexts': [
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horizon_contexts.HorizonHAProxyContext(),
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context.HAProxyContext(singlenode_mode=True),
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],
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'services': ['haproxy'],
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}),
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(ROUTER_SETTING, {
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'hook_contexts': [horizon_contexts.RouterSettingContext()],
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'services': ['apache2', 'memcached'],
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}),
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(KEYSTONEV3_POLICY, {
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'hook_contexts': [horizon_contexts.IdentityServiceContext()],
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'services': ['apache2', 'memcached'],
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}),
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])
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def register_configs():
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''' Register config files with their respective contexts. '''
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release = os_release('openstack-dashboard')
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configs = templating.OSConfigRenderer(templates_dir=TEMPLATES,
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openstack_release=release)
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confs = [LOCAL_SETTINGS,
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HAPROXY_CONF,
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PORTS_CONF]
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if CompareOpenStackReleases(release) >= 'mitaka':
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configs.register(KEYSTONEV3_POLICY,
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CONFIG_FILES[KEYSTONEV3_POLICY]['hook_contexts'])
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CONFIG_FILES[LOCAL_SETTINGS]['hook_contexts'].append(
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context.SharedDBContext(
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user=config('database-user'),
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database=config('database'),
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ssl_dir=DASHBOARD_CONF_DIR))
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for conf in confs:
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configs.register(conf, CONFIG_FILES[conf]['hook_contexts'])
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if os.path.isdir(APACHE_CONF_DIR) and cmp_pkgrevno('apache2', '2.4') >= 0:
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for conf in [APACHE_CONF, APACHE_SSL, APACHE_DEFAULT]:
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if os.path.isfile(conf):
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log('Removing old config %s' % (conf))
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os.remove(conf)
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configs.register(APACHE_24_DEFAULT,
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CONFIG_FILES[APACHE_24_DEFAULT]['hook_contexts'])
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configs.register(APACHE_24_CONF,
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CONFIG_FILES[APACHE_24_CONF]['hook_contexts'])
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configs.register(APACHE_24_SSL,
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CONFIG_FILES[APACHE_24_SSL]['hook_contexts'])
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else:
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configs.register(APACHE_DEFAULT,
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CONFIG_FILES[APACHE_DEFAULT]['hook_contexts'])
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configs.register(APACHE_CONF,
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CONFIG_FILES[APACHE_CONF]['hook_contexts'])
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configs.register(APACHE_SSL,
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CONFIG_FILES[APACHE_SSL]['hook_contexts'])
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if os.path.exists(os.path.dirname(ROUTER_SETTING)):
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configs.register(ROUTER_SETTING,
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CONFIG_FILES[ROUTER_SETTING]['hook_contexts'])
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return configs
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def restart_map():
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'''
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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 enable_ssl():
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''' Enable SSL support in local apache2 instance '''
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subprocess.call(['a2ensite', 'default-ssl'])
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subprocess.call(['a2enmod', 'ssl'])
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def determine_packages():
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"""Determine packages to install"""
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packages = BASE_PACKAGES
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if git_install_requested():
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packages.extend(BASE_GIT_PACKAGES)
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# don't include packages that will be installed from git
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packages = list(set(packages))
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for p in GIT_PACKAGE_BLACKLIST:
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packages.remove(p)
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release = get_os_codename_install_source(config('openstack-origin'))
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# Really should be handled as a dep in the openstack-dashboard package
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if CompareOpenStackReleases(release) >= 'mitaka':
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packages.append('python-pymysql')
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return list(set(packages))
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def do_openstack_upgrade(configs):
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"""
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Perform an upgrade. Takes care of upgrading packages, rewriting
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configs, database migrations 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(fatal=True)
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apt_upgrade(options=dpkg_opts, fatal=True, dist=True)
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# set CONFIGS to load templates from new release
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configs.set_release(openstack_release=new_os_rel)
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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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_os_release = os_release('openstack-dashboard')
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if (ubuntu_rel == 'trusty' and
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CompareOpenStackReleases(_os_release) < '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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def git_install(projects_yaml):
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"""Perform setup, and install git repos specified in yaml parameter."""
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if git_install_requested():
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git_pre_install()
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projects_yaml = git_default_repos(projects_yaml)
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git_clone_and_install(projects_yaml, core_project='horizon')
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git_post_install(projects_yaml)
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def git_pre_install():
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"""Perform horizon pre-install setup."""
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dirs = [
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'/etc/openstack-dashboard',
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'/usr/share/openstack-dashboard',
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'/usr/share/openstack-dashboard/bin/less',
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'/usr/share/openstack-dashboard-ubuntu-theme/static/ubuntu/css',
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'/usr/share/openstack-dashboard-ubuntu-theme/static/ubuntu/img',
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'/usr/share/openstack-dashboard-ubuntu-theme/templates',
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'/var/lib/openstack-dashboard',
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]
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adduser('horizon', shell='/bin/bash', system_user=True)
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subprocess.check_call(['usermod', '--home',
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'/usr/share/openstack-dashboard/', 'horizon'])
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add_group('horizon', system_group=True)
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add_user_to_group('horizon', 'horizon')
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for d in dirs:
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if d is '/var/lib/openstack-dashboard':
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mkdir(d, owner='horizon', group='horizon', perms=0700, force=False)
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else:
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mkdir(d, owner='root', group='root', perms=0755, force=False)
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def git_post_install(projects_yaml):
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"""Perform horizon post-install setup."""
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projects_yaml = git_default_repos(projects_yaml)
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src_dir = git_src_dir(projects_yaml, 'horizon')
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copy_files = {
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'manage': {
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'src': os.path.join(src_dir, 'manage.py'),
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'dest': '/usr/share/openstack-dashboard/manage.py',
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},
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'settings': {
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'src': os.path.join(src_dir, 'openstack_dashboard/settings.py'),
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'dest': '/usr/share/openstack-dashboard/settings.py',
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},
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'local_settings_example': {
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'src': os.path.join(src_dir, 'openstack_dashboard/local',
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'local_settings.py.example'),
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'dest': '/etc/openstack-dashboard/local_settings.py',
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},
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}
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for name, files in copy_files.iteritems():
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if os.path.exists(files['dest']):
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os.remove(files['dest'])
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shutil.copyfile(files['src'], files['dest'])
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copy_trees = {
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'openstack_dashboard': {
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'src': os.path.join(src_dir, 'openstack_dashboard'),
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'dest': '/usr/share/openstack-dashboard/openstack_dashboard',
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},
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}
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for name, dirs in copy_trees.iteritems():
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if os.path.exists(dirs['dest']):
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shutil.rmtree(dirs['dest'])
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shutil.copytree(dirs['src'], dirs['dest'])
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share_dir = '/usr/share/openstack-dashboard/openstack_dashboard'
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symlinks = [
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{'src': '/usr/share/openstack-dashboard/openstack_dashboard/static',
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'link': '/usr/share/openstack-dashboard/static'},
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{'src': '/usr/bin/lessc',
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'link': '/usr/share/openstack-dashboard/bin/less/lessc'},
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{'src': '/etc/openstack-dashboard/local_settings.py',
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'link': os.path.join(share_dir, 'local/local_settings.py')},
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{'src': os.path.join(git_pip_venv_dir(projects_yaml),
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'local/lib/python2.7/site-packages/horizon/static/horizon/'),
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'link': os.path.join(share_dir, 'static/horizon')},
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]
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for s in symlinks:
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if os.path.lexists(s['link']):
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os.remove(s['link'])
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os.symlink(s['src'], s['link'])
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os.chmod('/var/lib/openstack-dashboard', 0o750)
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os.chmod('/usr/share/openstack-dashboard/manage.py', 0o755),
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http_proxy = git_yaml_value(projects_yaml, 'http_proxy')
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if http_proxy:
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pip_install('python-memcached', proxy=http_proxy,
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venv=git_pip_venv_dir(projects_yaml))
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else:
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pip_install('python-memcached',
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venv=git_pip_venv_dir(projects_yaml))
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python = os.path.join(git_pip_venv_dir(projects_yaml), 'bin/python')
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subprocess.check_call([python, '/usr/share/openstack-dashboard/manage.py',
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'collectstatic', '--noinput'])
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subprocess.check_call([python, '/usr/share/openstack-dashboard/manage.py',
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'compress', '--force'])
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uid = pwd.getpwnam('horizon').pw_uid
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gid = grp.getgrnam('horizon').gr_gid
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os.chown('/etc/openstack-dashboard', uid, gid)
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os.chown('/usr/share/openstack-dashboard/openstack_dashboard/static',
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uid, gid)
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os.chown('/var/lib/openstack-dashboard', uid, gid)
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static_dir = '/usr/share/openstack-dashboard/openstack_dashboard/static'
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for root, dirs, files in os.walk(static_dir):
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for d in dirs:
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os.lchown(os.path.join(root, d), uid, gid)
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for f in files:
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os.lchown(os.path.join(root, f), uid, gid)
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if not is_unit_paused_set():
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service_restart('apache2')
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def git_post_install_late(projects_yaml):
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"""Perform horizon post-install setup."""
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projects_yaml = git_default_repos(projects_yaml)
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subprocess.check_call(['a2enconf', 'openstack-dashboard'])
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if not is_unit_paused_set():
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service_restart('apache2')
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python = os.path.join(git_pip_venv_dir(projects_yaml), 'bin/python')
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subprocess.check_call([python, '/usr/share/openstack-dashboard/manage.py',
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'collectstatic', '--noinput'])
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subprocess.check_call([python, '/usr/share/openstack-dashboard/manage.py',
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'compress', '--force'])
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# [thedac] Work around apache restart Bug#1552822
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# Allow for sleep time between stop and start
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def restart_on_change(restart_map, stopstart=False, sleep=0):
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"""Restart services based on configuration files changing
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This function is used a decorator, for example::
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@restart_on_change({
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|
'/etc/ceph/ceph.conf': [ 'cinder-api', 'cinder-volume' ]
|
|
'/etc/apache/sites-enabled/*': [ 'apache2' ]
|
|
})
|
|
def config_changed():
|
|
pass # your code here
|
|
|
|
In this example, the cinder-api and cinder-volume services
|
|
would be restarted if /etc/ceph/ceph.conf is changed by the
|
|
ceph_client_changed function. The apache2 service would be
|
|
restarted if any file matching the pattern got changed, created
|
|
or removed. Standard wildcards are supported, see documentation
|
|
for the 'glob' module for more information.
|
|
|
|
param: sleep Allow for sleep time between stop and start
|
|
Only used when stopstart=True
|
|
"""
|
|
def wrap(f):
|
|
def wrapped_f(*args, **kwargs):
|
|
if is_unit_paused_set():
|
|
return f(*args, **kwargs)
|
|
checksums = {path: path_hash(path) for path in restart_map}
|
|
f(*args, **kwargs)
|
|
restarts = []
|
|
for path in restart_map:
|
|
if path_hash(path) != checksums[path]:
|
|
restarts += restart_map[path]
|
|
services_list = list(OrderedDict.fromkeys(restarts))
|
|
if not stopstart:
|
|
for service_name in services_list:
|
|
service('restart', service_name)
|
|
else:
|
|
for action in ['stop', 'start']:
|
|
for service_name in services_list:
|
|
service(action, service_name)
|
|
if action == 'stop' and sleep:
|
|
time.sleep(sleep)
|
|
return wrapped_f
|
|
return wrap
|
|
|
|
|
|
def assess_status(configs):
|
|
"""Assess status of current unit
|
|
Decides what the state of the unit should be based on the current
|
|
configuration.
|
|
SIDE EFFECT: calls set_os_workload_status(...) which sets the workload
|
|
status of the unit.
|
|
Also calls status_set(...) directly if paused state isn't complete.
|
|
@param configs: a templating.OSConfigRenderer() object
|
|
@returns None - this function is executed for its side-effect
|
|
"""
|
|
assess_status_func(configs)()
|
|
os_application_version_set(VERSION_PACKAGE)
|
|
|
|
|
|
def assess_status_func(configs):
|
|
"""Helper function to create the function that will assess_status() for
|
|
the unit.
|
|
Uses charmhelpers.contrib.openstack.utils.make_assess_status_func() to
|
|
create the appropriate status function and then returns it.
|
|
Used directly by assess_status() and also for pausing and resuming
|
|
the unit.
|
|
|
|
NOTE(ajkavanagh) ports are not checked due to race hazards with services
|
|
that don't behave sychronously w.r.t their service scripts. e.g.
|
|
apache2.
|
|
@param configs: a templating.OSConfigRenderer() object
|
|
@return f() -> None : a function that assesses the unit's workload status
|
|
"""
|
|
return make_assess_status_func(
|
|
configs, REQUIRED_INTERFACES,
|
|
services=services(), ports=None)
|
|
|
|
|
|
def pause_unit_helper(configs):
|
|
"""Helper function to pause a unit, and then call assess_status(...) in
|
|
effect, so that the status is correctly updated.
|
|
Uses charmhelpers.contrib.openstack.utils.pause_unit() to do the work.
|
|
@param configs: a templating.OSConfigRenderer() object
|
|
@returns None - this function is executed for its side-effect
|
|
"""
|
|
_pause_resume_helper(pause_unit, configs)
|
|
|
|
|
|
def resume_unit_helper(configs):
|
|
"""Helper function to resume a unit, and then call assess_status(...) in
|
|
effect, so that the status is correctly updated.
|
|
Uses charmhelpers.contrib.openstack.utils.resume_unit() to do the work.
|
|
@param configs: a templating.OSConfigRenderer() object
|
|
@returns None - this function is executed for its side-effect
|
|
"""
|
|
_pause_resume_helper(resume_unit, configs)
|
|
|
|
|
|
def _pause_resume_helper(f, configs):
|
|
"""Helper function that uses the make_assess_status_func(...) from
|
|
charmhelpers.contrib.openstack.utils to create an assess_status(...)
|
|
function that can be used with the pause/resume of the unit
|
|
@param f: the function to be used with the assess_status(...) function
|
|
@returns None - this function is executed for its side-effect
|
|
"""
|
|
# TODO(ajkavanagh) - ports= has been left off because of the race hazard
|
|
# that exists due to service_start()
|
|
f(assess_status_func(configs),
|
|
services=services(),
|
|
ports=None)
|
|
|
|
|
|
def db_migration():
|
|
cmd = ['/usr/share/openstack-dashboard/manage.py', 'syncdb', '--noinput']
|
|
subprocess.call(cmd)
|