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#!/usr/bin/python
import os
import shutil
import subprocess
import glance_contexts
from collections import OrderedDict
from charmhelpers.fetch import (
apt_upgrade,
apt_update,
apt_install,
add_source)
from charmhelpers.core.hookenv import (
charm_dir,
config,
log,
relation_ids,
service_name)
from charmhelpers.core.host import (
adduser,
add_group,
add_user_to_group,
mkdir,
service_stop,
service_start,
service_restart,
lsb_release,
write_file,
)
from charmhelpers.contrib.openstack import (
templating,
context,)
from charmhelpers.contrib.hahelpers.cluster import (
eligible_leader,
)
from charmhelpers.contrib.openstack.alternatives import install_alternative
from charmhelpers.contrib.openstack.utils import (
get_os_codename_install_source,
git_install_requested,
git_clone_and_install,
git_src_dir,
configure_installation_source,
os_release,
)
from charmhelpers.core.templating import render
CLUSTER_RES = "grp_glance_vips"
PACKAGES = [
"apache2", "glance", "python-mysqldb", "python-swiftclient",
"python-psycopg2", "python-keystone", "python-six", "uuid", "haproxy", ]
BASE_GIT_PACKAGES = [
'libxml2-dev',
'libxslt1-dev',
'python-dev',
'python-pip',
'python-setuptools',
'zlib1g-dev',
]
SERVICES = [
"glance-api",
"glance-registry",
]
# ubuntu packages that should not be installed when deploying from git
GIT_PACKAGE_BLACKLIST = [
'glance',
'python-swiftclient',
'python-keystone',
]
CHARM = "glance"
GLANCE_CONF_DIR = "/etc/glance"
GLANCE_REGISTRY_CONF = "%s/glance-registry.conf" % GLANCE_CONF_DIR
GLANCE_REGISTRY_PASTE_INI = "%s/glance-registry-paste.ini" % GLANCE_CONF_DIR
GLANCE_API_CONF = "%s/glance-api.conf" % GLANCE_CONF_DIR
GLANCE_API_PASTE_INI = "%s/glance-api-paste.ini" % GLANCE_CONF_DIR
CEPH_CONF = "/etc/ceph/ceph.conf"
CHARM_CEPH_CONF = '/var/lib/charm/{}/ceph.conf'
HAPROXY_CONF = "/etc/haproxy/haproxy.cfg"
HTTPS_APACHE_CONF = "/etc/apache2/sites-available/openstack_https_frontend"
HTTPS_APACHE_24_CONF = "/etc/apache2/sites-available/" \
"openstack_https_frontend.conf"
CONF_DIR = "/etc/glance"
TEMPLATES = 'templates/'
def ceph_config_file():
return CHARM_CEPH_CONF.format(service_name())
CONFIG_FILES = OrderedDict([
(GLANCE_REGISTRY_CONF, {
'hook_contexts': [context.SharedDBContext(ssl_dir=GLANCE_CONF_DIR),
context.PostgresqlDBContext(),
context.IdentityServiceContext(
service='glance',
service_user='glance'),
context.SyslogContext(),
glance_contexts.LoggingConfigContext(),
glance_contexts.GlanceIPv6Context(),
context.WorkerConfigContext(),
context.OSConfigFlagContext(
charm_flag='registry-config-flags',
template_flag='registry_config_flags')],
'services': ['glance-registry']
}),
(GLANCE_API_CONF, {
'hook_contexts': [context.SharedDBContext(ssl_dir=GLANCE_CONF_DIR),
context.AMQPContext(ssl_dir=GLANCE_CONF_DIR),
context.PostgresqlDBContext(),
context.IdentityServiceContext(
service='glance',
service_user='glance'),
glance_contexts.CephGlanceContext(),
glance_contexts.ObjectStoreContext(),
glance_contexts.HAProxyContext(),
context.SyslogContext(),
glance_contexts.LoggingConfigContext(),
glance_contexts.GlanceIPv6Context(),
context.WorkerConfigContext(),
glance_contexts.MultiStoreContext(),
context.OSConfigFlagContext(
charm_flag='api-config-flags',
template_flag='api_config_flags')],
'services': ['glance-api']
}),
(GLANCE_API_PASTE_INI, {
'hook_contexts': [context.IdentityServiceContext()],
'services': ['glance-api']
}),
(GLANCE_REGISTRY_PASTE_INI, {
'hook_contexts': [context.IdentityServiceContext()],
'services': ['glance-registry']
}),
(ceph_config_file(), {
'hook_contexts': [context.CephContext()],
'services': ['glance-api', 'glance-registry']
}),
(HAPROXY_CONF, {
'hook_contexts': [context.HAProxyContext(singlenode_mode=True),
glance_contexts.HAProxyContext()],
'services': ['haproxy'],
}),
(HTTPS_APACHE_CONF, {
'hook_contexts': [glance_contexts.ApacheSSLContext()],
'services': ['apache2'],
}),
(HTTPS_APACHE_24_CONF, {
'hook_contexts': [glance_contexts.ApacheSSLContext()],
'services': ['apache2'],
})
])
def register_configs():
# Register config files with their respective contexts.
# Regstration of some configs may not be required depending on
# existing of certain relations.
release = os_release('glance-common')
configs = templating.OSConfigRenderer(templates_dir=TEMPLATES,
openstack_release=release)
confs = [GLANCE_REGISTRY_CONF,
GLANCE_API_CONF,
GLANCE_API_PASTE_INI,
GLANCE_REGISTRY_PASTE_INI,
HAPROXY_CONF]
if relation_ids('ceph'):
mkdir(os.path.dirname(ceph_config_file()))
mkdir(os.path.dirname(CEPH_CONF))
# Install ceph config as an alternative for co-location with
# ceph and ceph-osd charms - glance ceph.conf will be
# lower priority that both of these but thats OK
if not os.path.exists(ceph_config_file()):
# touch file for pre-templated generation
open(ceph_config_file(), 'w').close()
install_alternative(os.path.basename(CEPH_CONF),
CEPH_CONF, ceph_config_file())
confs.append(ceph_config_file())
for conf in confs:
configs.register(conf, CONFIG_FILES[conf]['hook_contexts'])
if os.path.exists('/etc/apache2/conf-available'):
configs.register(HTTPS_APACHE_24_CONF,
CONFIG_FILES[HTTPS_APACHE_24_CONF]['hook_contexts'])
else:
configs.register(HTTPS_APACHE_CONF,
CONFIG_FILES[HTTPS_APACHE_CONF]['hook_contexts'])
return configs
def determine_packages():
packages = [] + PACKAGES
if git_install_requested():
packages.extend(BASE_GIT_PACKAGES)
# don't include packages that will be installed from git
for p in GIT_PACKAGE_BLACKLIST:
packages.remove(p)
return list(set(packages))
def migrate_database():
'''Runs glance-manage to initialize a new database
or migrate existing
'''
cmd = ['glance-manage', 'db_sync']
subprocess.check_call(cmd)
def do_openstack_upgrade(configs):
"""Perform an uprade of cinder. Takes care of upgrading
packages, rewriting configs + database migration and potentially
any other post-upgrade actions.
:param configs: The charms main OSConfigRenderer object.
"""
new_src = config('openstack-origin')
new_os_rel = get_os_codename_install_source(new_src)
log('Performing OpenStack upgrade to %s.' % (new_os_rel))
configure_installation_source(new_src)
dpkg_opts = [
'--option', 'Dpkg::Options::=--force-confnew',
'--option', 'Dpkg::Options::=--force-confdef',
]
apt_update()
apt_upgrade(options=dpkg_opts, fatal=True, dist=True)
apt_install(determine_packages(), fatal=True)
# set CONFIGS to load templates from new release and regenerate config
configs.set_release(openstack_release=new_os_rel)
configs.write_all()
[service_stop(s) for s in services()]
if eligible_leader(CLUSTER_RES):
migrate_database()
[service_start(s) for s in services()]
def restart_map():
'''Determine the correct resource map to be passed to
charmhelpers.core.restart_on_change() based on the services configured.
:returns: dict: A dictionary mapping config file to lists of services
that should be restarted when file changes.
'''
_map = []
for f, ctxt in CONFIG_FILES.iteritems():
svcs = []
for svc in ctxt['services']:
svcs.append(svc)
if svcs:
_map.append((f, svcs))
return OrderedDict(_map)
def services():
''' Returns a list of services associate with this charm '''
_services = []
for v in restart_map().values():
_services = _services + v
return list(set(_services))
def setup_ipv6():
ubuntu_rel = lsb_release()['DISTRIB_CODENAME'].lower()
if ubuntu_rel < "trusty":
raise Exception("IPv6 is not supported in the charms for Ubuntu "
"versions less than Trusty 14.04")
# NOTE(xianghui): Need to install haproxy(1.5.3) from trusty-backports
# to support ipv6 address, so check is required to make sure not
# breaking other versions, IPv6 only support for >= Trusty
if ubuntu_rel == 'trusty':
add_source('deb http://archive.ubuntu.com/ubuntu trusty-backports'
' main')
apt_update()
apt_install('haproxy/trusty-backports', fatal=True)
def git_install(projects_yaml):
"""Perform setup, and install git repos specified in yaml parameter."""
if git_install_requested():
git_pre_install()
git_clone_and_install(projects_yaml, core_project='glance')
git_post_install(projects_yaml)
def git_pre_install():
"""Perform glance pre-install setup."""
dirs = [
'/var/lib/glance',
'/var/lib/glance/images',
'/var/lib/glance/image-cache',
'/var/lib/glance/image-cache/incomplete',
'/var/lib/glance/image-cache/invalid',
'/var/lib/glance/image-cache/queue',
'/var/log/glance',
]
logs = [
'/var/log/glance/glance-api.log',
'/var/log/glance/glance-registry.log',
]
adduser('glance', shell='/bin/bash', system_user=True)
add_group('glance', system_group=True)
add_user_to_group('glance', 'glance')
for d in dirs:
mkdir(d, owner='glance', group='glance', perms=0755, force=False)
for l in logs:
write_file(l, '', owner='glance', group='glance', perms=0600)
def git_post_install(projects_yaml):
"""Perform glance post-install setup."""
src_etc = os.path.join(git_src_dir(projects_yaml, 'glance'), 'etc')
configs = {
'src': src_etc,
'dest': '/etc/glance',
}
if os.path.exists(configs['dest']):
shutil.rmtree(configs['dest'])
shutil.copytree(configs['src'], configs['dest'])
glance_api_context = {
'service_description': 'Glance API server',
'service_name': 'Glance',
'user_name': 'glance',
'start_dir': '/var/lib/glance',
'process_name': 'glance-api',
'executable_name': '/usr/local/bin/glance-api',
'config_files': ['/etc/glance/glance-api.conf'],
'log_file': '/var/log/glance/api.log',
}
glance_registry_context = {
'service_description': 'Glance registry server',
'service_name': 'Glance',
'user_name': 'glance',
'start_dir': '/var/lib/glance',
'process_name': 'glance-registry',
'executable_name': '/usr/local/bin/glance-registry',
'config_files': ['/etc/glance/glance-registry.conf'],
'log_file': '/var/log/glance/registry.log',
}
# NOTE(coreycb): Needs systemd support
templates_dir = 'hooks/charmhelpers/contrib/openstack/templates'
templates_dir = os.path.join(charm_dir(), templates_dir)
render('git.upstart', '/etc/init/glance-api.conf',
glance_api_context, perms=0o644, templates_dir=templates_dir)
render('git.upstart', '/etc/init/glance-registry.conf',
glance_registry_context, perms=0o644, templates_dir=templates_dir)
service_restart('glance-api')
service_restart('glance-registry')
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