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import os
import uuid
from collections import OrderedDict
from charmhelpers.contrib.openstack import (
templating,
context,
)
from ceilometer_contexts import (
ApacheSSLContext,
LoggingConfigContext,
MongoDBContext,
CeilometerContext,
HAProxyContext
)
from charmhelpers.contrib.openstack.utils import (
get_os_codename_package,
get_os_codename_install_source,
configure_installation_source
)
from charmhelpers.core.hookenv import config, log
from charmhelpers.fetch import apt_update, apt_install, apt_upgrade
from copy import deepcopy
HAPROXY_CONF = '/etc/haproxy/haproxy.cfg'
CEILOMETER_CONF_DIR = "/etc/ceilometer"
CEILOMETER_CONF = "%s/ceilometer.conf" % CEILOMETER_CONF_DIR
HTTPS_APACHE_CONF = "/etc/apache2/sites-available/openstack_https_frontend"
HTTPS_APACHE_24_CONF = "/etc/apache2/sites-available/" \
"openstack_https_frontend.conf"
CLUSTER_RES = 'grp_ceilometer_vips'
CEILOMETER_SERVICES = [
'ceilometer-agent-central',
'ceilometer-collector',
'ceilometer-api',
'ceilometer-alarm-evaluator',
'ceilometer-alarm-notifier',
'ceilometer-agent-notification',
]
CEILOMETER_DB = "ceilometer"
CEILOMETER_SERVICE = "ceilometer"
CEILOMETER_PACKAGES = [
'haproxy',
'apache2',
'ceilometer-agent-central',
'ceilometer-collector',
'ceilometer-api',
'python-pymongo',
]
ICEHOUSE_PACKAGES = [
'ceilometer-alarm-notifier',
'ceilometer-alarm-evaluator',
'ceilometer-agent-notification'
]
ICEHOUSE_SERVICES = [
'ceilometer-alarm-notifier',
'ceilometer-alarm-evaluator',
'ceilometer-agent-notification'
]
CEILOMETER_ROLE = "ResellerAdmin"
SVC = 'ceilometer'
CONFIG_FILES = OrderedDict([
(CEILOMETER_CONF, {
'hook_contexts': [context.IdentityServiceContext(service=SVC,
service_user=SVC),
context.AMQPContext(ssl_dir=CEILOMETER_CONF_DIR),
LoggingConfigContext(),
MongoDBContext(),
CeilometerContext(),
context.SyslogContext(),
HAProxyContext()],
'services': CEILOMETER_SERVICES
}),
(HAPROXY_CONF, {
'hook_contexts': [context.HAProxyContext(singlenode_mode=True),
HAProxyContext()],
'services': ['haproxy'],
}),
(HTTPS_APACHE_CONF, {
'hook_contexts': [ApacheSSLContext()],
'services': ['apache2'],
}),
(HTTPS_APACHE_24_CONF, {
'hook_contexts': [ApacheSSLContext()],
'services': ['apache2'],
})
])
TEMPLATES = 'templates'
SHARED_SECRET = "/etc/ceilometer/secret.txt"
def register_configs():
"""
Register config files with their respective contexts.
Regstration of some configs may not be required depending on
existing of certain relations.
"""
# if called without anything installed (eg during install hook)
# just default to earliest supported release. configs dont get touched
# till post-install, anyway.
release = get_os_codename_package('ceilometer-common', fatal=False) \
or 'grizzly'
configs = templating.OSConfigRenderer(templates_dir=TEMPLATES,
openstack_release=release)
if (get_os_codename_install_source(
config('openstack-origin')) >= 'icehouse'):
CONFIG_FILES[CEILOMETER_CONF]['services'] = \
CONFIG_FILES[CEILOMETER_CONF]['services'] + ICEHOUSE_SERVICES
for conf in CONFIG_FILES:
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 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[f] = svcs
return _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 get_ceilometer_context():
''' Retrieve a map of all current relation data for agent configuration '''
ctxt = {}
for hcontext in CONFIG_FILES[CEILOMETER_CONF]['hook_contexts']:
ctxt.update(hcontext())
return ctxt
def do_openstack_upgrade(configs):
"""
Perform an upgrade. Takes care of upgrading packages, rewriting
configs, database migrations 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(fatal=True)
apt_upgrade(options=dpkg_opts, fatal=True, dist=True)
apt_install(packages=get_packages(),
options=dpkg_opts,
fatal=True)
# set CONFIGS to load templates from new release
configs.set_release(openstack_release=new_os_rel)
def get_packages():
packages = deepcopy(CEILOMETER_PACKAGES)
if (get_os_codename_install_source(
config('openstack-origin')) >= 'icehouse'):
packages = packages + ICEHOUSE_PACKAGES
return packages
def get_shared_secret():
"""
Returns the current shared secret for the ceilometer node. If the shared
secret does not exist, this method will generate one.
"""
secret = None
if not os.path.exists(SHARED_SECRET):
secret = str(uuid.uuid4())
set_shared_secret(secret)
else:
with open(SHARED_SECRET, 'r') as secret_file:
secret = secret_file.read().strip()
return secret
def set_shared_secret(secret):
"""
Sets the shared secret which is used to sign ceilometer messages.
:param secret: the secret to set
"""
with open(SHARED_SECRET, 'w') as secret_file:
secret_file.write(secret)
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