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#!/usr/bin/python
from base64 import b64decode
from charmhelpers.core.hookenv import (
log, ERROR, WARNING,
config,
is_relation_made,
relation_get,
relation_set,
relation_ids,
unit_get,
Hooks, UnregisteredHookError
)
from charmhelpers.fetch import (
apt_update,
apt_install,
filter_installed_packages,
apt_purge,
)
from charmhelpers.core.host import (
restart_on_change,
lsb_release,
)
from charmhelpers.contrib.hahelpers.cluster import(
get_hacluster_config,
eligible_leader
)
from charmhelpers.contrib.hahelpers.apache import(
install_ca_cert
)
from charmhelpers.contrib.openstack.utils import (
config_value_changed,
configure_installation_source,
openstack_upgrade_available,
os_requires_version,
)
from charmhelpers.payload.execd import execd_preinstall
from charmhelpers.core.sysctl import create as create_sysctl
from charmhelpers.contrib.charmsupport import nrpe
import sys
from neutron_utils import (
L3HA_PACKAGES,
register_configs,
restart_map,
services,
do_openstack_upgrade,
get_packages,
get_early_packages,
get_common_package,
get_topics,
git_install,
git_install_requested,
valid_plugin,
configure_ovs,
stop_services,
cache_env_data,
update_legacy_ha_files,
remove_legacy_ha_files,
install_legacy_ha_files,
cleanup_ovs_netns,
reassign_agent_resources,
stop_neutron_ha_monitor_daemon,
use_l3ha,
)
hooks = Hooks()
CONFIGS = register_configs()
@hooks.hook('install')
def install():
execd_preinstall()
src = config('openstack-origin')
if (lsb_release()['DISTRIB_CODENAME'] == 'precise' and
src == 'distro'):
src = 'cloud:precise-folsom'
configure_installation_source(src)
apt_update(fatal=True)
apt_install('python-six', fatal=True) # Force upgrade
if valid_plugin():
apt_install(filter_installed_packages(get_early_packages()),
fatal=True)
apt_install(filter_installed_packages(get_packages()),
fatal=True)
git_install(config('openstack-origin-git'))
else:
log('Please provide a valid plugin config', level=ERROR)
sys.exit(1)
# Legacy HA for Icehouse
update_legacy_ha_files()
@hooks.hook('config-changed')
@restart_on_change(restart_map())
def config_changed():
global CONFIGS
if git_install_requested():
if config_value_changed('openstack-origin-git'):
git_install(config('openstack-origin-git'))
CONFIGS.write_all()
else:
if openstack_upgrade_available(get_common_package()):
do_openstack_upgrade()
CONFIGS.write_all()
update_nrpe_config()
sysctl_dict = config('sysctl')
if sysctl_dict:
create_sysctl(sysctl_dict, '/etc/sysctl.d/50-quantum-gateway.conf')
# Re-run joined hooks as config might have changed
for r_id in relation_ids('shared-db'):
db_joined(relation_id=r_id)
for r_id in relation_ids('pgsql-db'):
pgsql_db_joined(relation_id=r_id)
for r_id in relation_ids('amqp'):
amqp_joined(relation_id=r_id)
for r_id in relation_ids('amqp-nova'):
amqp_nova_joined(relation_id=r_id)
for rid in relation_ids('zeromq-configuration'):
zeromq_configuration_relation_joined(rid)
if valid_plugin():
CONFIGS.write_all()
configure_ovs()
else:
log('Please provide a valid plugin config', level=ERROR)
sys.exit(1)
if config('plugin') == 'n1kv':
if not git_install_requested():
if config('enable-l3-agent'):
apt_install(filter_installed_packages('neutron-l3-agent'))
else:
apt_purge('neutron-l3-agent')
# Setup legacy ha configurations
update_legacy_ha_files()
@hooks.hook('upgrade-charm')
def upgrade_charm():
install()
config_changed()
update_legacy_ha_files(force=True)
@hooks.hook('shared-db-relation-joined')
def db_joined(relation_id=None):
if is_relation_made('pgsql-db'):
# raise error
e = ('Attempting to associate a mysql database when there is already '
'associated a postgresql one')
log(e, level=ERROR)
raise Exception(e)
relation_set(username=config('database-user'),
database=config('database'),
hostname=unit_get('private-address'),
relation_id=relation_id)
@hooks.hook('pgsql-db-relation-joined')
def pgsql_db_joined(relation_id=None):
if is_relation_made('shared-db'):
# raise error
e = ('Attempting to associate a postgresql database when there'
' is already associated a mysql one')
log(e, level=ERROR)
raise Exception(e)
relation_set(database=config('database'),
relation_id=relation_id)
@hooks.hook('amqp-nova-relation-joined')
def amqp_nova_joined(relation_id=None):
relation_set(relation_id=relation_id,
username=config('nova-rabbit-user'),
vhost=config('nova-rabbit-vhost'))
@hooks.hook('amqp-relation-joined')
def amqp_joined(relation_id=None):
relation_set(relation_id=relation_id,
username=config('rabbit-user'),
vhost=config('rabbit-vhost'))
@hooks.hook('amqp-nova-relation-departed')
@hooks.hook('amqp-nova-relation-changed')
@restart_on_change(restart_map())
def amqp_nova_changed():
if 'amqp-nova' not in CONFIGS.complete_contexts():
log('amqp relation incomplete. Peer not ready?')
return
CONFIGS.write_all()
@hooks.hook('amqp-relation-departed')
@restart_on_change(restart_map())
def amqp_departed():
if 'amqp' not in CONFIGS.complete_contexts():
log('amqp relation incomplete. Peer not ready?')
return
CONFIGS.write_all()
@hooks.hook('shared-db-relation-changed',
'pgsql-db-relation-changed',
'amqp-relation-changed',
'cluster-relation-changed',
'cluster-relation-joined')
@restart_on_change(restart_map())
def db_amqp_changed():
CONFIGS.write_all()
@hooks.hook('neutron-plugin-api-relation-changed')
@restart_on_change(restart_map())
def neutron_plugin_api_changed():
if use_l3ha():
apt_update()
apt_install(L3HA_PACKAGES, fatal=True)
CONFIGS.write_all()
@hooks.hook('quantum-network-service-relation-changed')
@restart_on_change(restart_map())
def nm_changed():
CONFIGS.write_all()
if relation_get('ca_cert'):
ca_crt = b64decode(relation_get('ca_cert'))
install_ca_cert(ca_crt)
if config('ha-legacy-mode'):
cache_env_data()
@hooks.hook("cluster-relation-departed")
@restart_on_change(restart_map())
def cluster_departed():
if config('plugin') in ['nvp', 'nsx']:
log('Unable to re-assign agent resources for'
' failed nodes with nvp|nsx',
level=WARNING)
return
if config('plugin') == 'n1kv':
log('Unable to re-assign agent resources for failed nodes with n1kv',
level=WARNING)
return
if not config('ha-legacy-mode') and eligible_leader(None):
reassign_agent_resources()
CONFIGS.write_all()
@hooks.hook('cluster-relation-broken')
@hooks.hook('stop')
def stop():
stop_services()
if config('ha-legacy-mode'):
# Cleanup ovs and netns for destroyed units.
cleanup_ovs_netns()
@hooks.hook('zeromq-configuration-relation-joined')
@os_requires_version('kilo', 'neutron-common')
def zeromq_configuration_relation_joined(relid=None):
relation_set(relation_id=relid,
topics=" ".join(get_topics()),
users="neutron nova")
@hooks.hook('zeromq-configuration-relation-changed')
@restart_on_change(restart_map(), stopstart=True)
def zeromq_configuration_relation_changed():
CONFIGS.write_all()
@hooks.hook('nrpe-external-master-relation-joined',
'nrpe-external-master-relation-changed')
def update_nrpe_config():
# python-dbus is used by check_upstart_job
apt_install('python-dbus')
hostname = nrpe.get_nagios_hostname()
current_unit = nrpe.get_nagios_unit_name()
nrpe_setup = nrpe.NRPE(hostname=hostname)
nrpe.add_init_service_checks(nrpe_setup, services(), current_unit)
cronpath = '/etc/cron.d/nagios-netns-check'
cron_template = ('*/5 * * * * root '
'/usr/local/lib/nagios/plugins/check_netns.sh '
'> /var/lib/nagios/netns-check.txt\n'
)
f = open(cronpath, 'w')
f.write(cron_template)
f.close()
nrpe_setup.add_check(
shortname="netns",
description='Network Namespace check {%s}' % current_unit,
check_cmd='check_status_file.py -f /var/lib/nagios/netns-check.txt'
)
nrpe_setup.write()
@hooks.hook('ha-relation-joined')
@hooks.hook('ha-relation-changed')
def ha_relation_joined():
if config('ha-legacy-mode'):
log('ha-relation-changed update_legacy_ha_files')
install_legacy_ha_files()
cache_env_data()
cluster_config = get_hacluster_config(exclude_keys=['vip'])
resources = {
'res_monitor': 'ocf:canonical:NeutronAgentMon',
}
resource_params = {
'res_monitor': 'op monitor interval="60s"',
}
clones = {
'cl_monitor': 'res_monitor meta interleave="true"',
}
relation_set(corosync_bindiface=cluster_config['ha-bindiface'],
corosync_mcastport=cluster_config['ha-mcastport'],
resources=resources,
resource_params=resource_params,
clones=clones)
@hooks.hook('ha-relation-departed')
def ha_relation_destroyed():
# If e.g. we want to upgrade to Juno and use native Neutron HA support then
# we need to un-corosync-cluster to enable the transition.
if config('ha-legacy-mode'):
stop_neutron_ha_monitor_daemon()
remove_legacy_ha_files()
if __name__ == '__main__':
try:
hooks.execute(sys.argv)
except UnregisteredHookError as e:
log('Unknown hook {} - skipping.'.format(e))
|