charm-heat/hooks/heat_relations.py

368 lines
10 KiB
Python
Executable File

#!/usr/bin/python
#
# Copyright 2012 Canonical Ltd.
#
# Authors:
# Yolanda Robla <yolanda.robla@canonical.com>
#
import os
import shutil
import subprocess
import sys
from charmhelpers.core.hookenv import (
Hooks,
UnregisteredHookError,
config,
charm_dir,
log,
relation_ids,
relation_get,
relation_set,
local_unit,
open_port,
unit_get,
status_set,
leader_get,
leader_set,
is_leader,
)
from charmhelpers.core.host import (
restart_on_change,
service_reload,
pwgen,
)
from charmhelpers.fetch import (
apt_install,
apt_update
)
from charmhelpers.contrib.hahelpers.cluster import (
is_elected_leader,
get_hacluster_config,
)
from charmhelpers.contrib.network.ip import (
get_iface_for_address,
get_netmask_for_address,
get_address_in_network,
get_ipv6_addr,
is_ipv6
)
from charmhelpers.contrib.openstack.utils import (
configure_installation_source,
openstack_upgrade_available,
set_os_workload_status,
sync_db_with_multi_ipv6_addresses,
)
from charmhelpers.contrib.openstack.ip import (
canonical_url,
ADMIN,
INTERNAL,
PUBLIC,
)
from heat_utils import (
do_openstack_upgrade,
restart_map,
determine_packages,
migrate_database,
register_configs,
CLUSTER_RES,
HEAT_CONF,
REQUIRED_INTERFACES,
setup_ipv6,
)
from heat_context import (
API_PORTS,
)
from charmhelpers.contrib.openstack.context import ADDRESS_TYPES
from charmhelpers.payload.execd import execd_preinstall
hooks = Hooks()
CONFIGS = register_configs()
@hooks.hook('install.real')
def install():
status_set('maintenance', 'Executing pre-install')
execd_preinstall()
configure_installation_source(config('openstack-origin'))
status_set('maintenance', 'Installing apt packages')
apt_update()
apt_install(determine_packages(), fatal=True)
_files = os.path.join(charm_dir(), 'files')
if os.path.isdir(_files):
for f in os.listdir(_files):
f = os.path.join(_files, f)
log('Installing %s to /usr/bin' % f)
shutil.copy2(f, '/usr/bin')
for port in API_PORTS.values():
open_port(port)
@hooks.hook('config-changed')
@restart_on_change(restart_map())
def config_changed():
if not config('action-managed-upgrade'):
if openstack_upgrade_available('heat-common'):
status_set('maintenance', 'Running openstack upgrade')
do_openstack_upgrade(CONFIGS)
if config('prefer-ipv6'):
status_set('maintenance', 'configuring ipv6')
setup_ipv6()
sync_db_with_multi_ipv6_addresses(config('database'),
config('database-user'),
relation_prefix='heat')
CONFIGS.write_all()
configure_https()
for rid in relation_ids('cluster'):
cluster_joined(relation_id=rid)
for r_id in relation_ids('ha'):
ha_joined(relation_id=r_id)
@hooks.hook('upgrade-charm')
def upgrade_charm():
leader_elected()
@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-relation-changed')
@restart_on_change(restart_map())
def amqp_changed():
if 'amqp' not in CONFIGS.complete_contexts():
log('amqp relation incomplete. Peer not ready?')
return
CONFIGS.write(HEAT_CONF)
@hooks.hook('shared-db-relation-joined')
def db_joined():
if config('prefer-ipv6'):
sync_db_with_multi_ipv6_addresses(config('database'),
config('database-user'),
relation_prefix='heat')
else:
relation_set(database=config('database'),
username=config('database-user'),
hostname=unit_get('private-address'))
@hooks.hook('shared-db-relation-changed')
@restart_on_change(restart_map())
def db_changed():
if 'shared-db' not in CONFIGS.complete_contexts():
log('shared-db relation incomplete. Peer not ready?')
return
CONFIGS.write(HEAT_CONF)
if is_elected_leader(CLUSTER_RES):
allowed_units = relation_get('allowed_units')
if allowed_units and local_unit() in allowed_units.split():
log('Cluster leader, performing db sync')
migrate_database()
else:
log('allowed_units either not presented, or local unit '
'not in acl list: %s' % repr(allowed_units))
def configure_https():
"""Enables SSL API Apache config if appropriate."""
# need to write all to ensure changes to the entire request pipeline
# propagate (c-api, haprxy, apache)
CONFIGS.write_all()
if 'https' in CONFIGS.complete_contexts():
cmd = ['a2ensite', 'openstack_https_frontend']
subprocess.check_call(cmd)
else:
cmd = ['a2dissite', 'openstack_https_frontend']
subprocess.check_call(cmd)
# TODO: improve this by checking if local CN certs are available
# first then checking reload status (see LP #1433114).
service_reload('apache2', restart_on_failure=True)
for rid in relation_ids('identity-service'):
identity_joined(rid=rid)
@hooks.hook('identity-service-relation-joined')
def identity_joined(rid=None):
public_url_base = canonical_url(CONFIGS, PUBLIC)
internal_url_base = canonical_url(CONFIGS, INTERNAL)
admin_url_base = canonical_url(CONFIGS, ADMIN)
api_url_template = '%s:8004/v1/$(tenant_id)s'
public_api_endpoint = (api_url_template % public_url_base)
internal_api_endpoint = (api_url_template % internal_url_base)
admin_api_endpoint = (api_url_template % admin_url_base)
cfn_url_template = '%s:8000/v1'
public_cfn_endpoint = (cfn_url_template % public_url_base)
internal_cfn_endpoint = (cfn_url_template % internal_url_base)
admin_cfn_endpoint = (cfn_url_template % admin_url_base)
relation_data = {
'heat_service': 'heat',
'heat_region': config('region'),
'heat_public_url': public_api_endpoint,
'heat_admin_url': admin_api_endpoint,
'heat_internal_url': internal_api_endpoint,
'heat-cfn_service': 'heat-cfn',
'heat-cfn_region': config('region'),
'heat-cfn_public_url': public_cfn_endpoint,
'heat-cfn_admin_url': admin_cfn_endpoint,
'heat-cfn_internal_url': internal_cfn_endpoint,
}
relation_set(relation_id=rid, **relation_data)
@hooks.hook('identity-service-relation-changed')
@restart_on_change(restart_map())
def identity_changed():
if 'identity-service' not in CONFIGS.complete_contexts():
log('identity-service relation incomplete. Peer not ready?')
return
CONFIGS.write_all()
configure_https()
@hooks.hook('amqp-relation-broken',
'identity-service-relation-broken',
'shared-db-relation-broken')
def relation_broken():
CONFIGS.write_all()
@hooks.hook('leader-elected')
def leader_elected():
if is_leader() and not leader_get('heat-domain-admin-passwd'):
leader_set({'heat-domain-admin-passwd': pwgen(32)})
@hooks.hook('cluster-relation-joined')
def cluster_joined(relation_id=None):
for addr_type in ADDRESS_TYPES:
address = get_address_in_network(
config('os-{}-network'.format(addr_type))
)
if address:
relation_set(
relation_id=relation_id,
relation_settings={'{}-address'.format(addr_type): address}
)
if config('prefer-ipv6'):
private_addr = get_ipv6_addr(exc_list=[config('vip')])[0]
relation_set(relation_id=relation_id,
relation_settings={'private-address': private_addr})
@hooks.hook('cluster-relation-changed',
'cluster-relation-departed')
@restart_on_change(restart_map(), stopstart=True)
def cluster_changed():
CONFIGS.write_all()
@hooks.hook('ha-relation-joined')
def ha_joined(relation_id=None):
cluster_config = get_hacluster_config()
resources = {
'res_heat_haproxy': 'lsb:haproxy'
}
resource_params = {
'res_heat_haproxy': 'op monitor interval="5s"'
}
vip_group = []
for vip in cluster_config['vip'].split():
if is_ipv6(vip):
res_heat_vip = 'ocf:heartbeat:IPv6addr'
vip_params = 'ipv6addr'
else:
res_heat_vip = 'ocf:heartbeat:IPaddr2'
vip_params = 'ip'
iface = (get_iface_for_address(vip) or
config('vip_iface'))
netmask = (get_netmask_for_address(vip) or
config('vip_cidr'))
if iface is not None:
vip_key = 'res_heat_{}_vip'.format(iface)
resources[vip_key] = res_heat_vip
resource_params[vip_key] = (
'params {ip}="{vip}" cidr_netmask="{netmask}"'
' nic="{iface}"'.format(ip=vip_params,
vip=vip,
iface=iface,
netmask=netmask)
)
vip_group.append(vip_key)
if len(vip_group) >= 1:
relation_set(relation_id=relation_id,
groups={'grp_heat_vips': ' '.join(vip_group)})
init_services = {
'res_heat_haproxy': 'haproxy'
}
clones = {
'cl_heat_haproxy': 'res_heat_haproxy'
}
relation_set(relation_id=relation_id,
init_services=init_services,
corosync_bindiface=cluster_config['ha-bindiface'],
corosync_mcastport=cluster_config['ha-mcastport'],
resources=resources,
resource_params=resource_params,
clones=clones)
@hooks.hook('ha-relation-changed')
def ha_changed():
clustered = relation_get('clustered')
if not clustered or clustered in [None, 'None', '']:
log('ha_changed: hacluster subordinate not fully clustered.')
else:
log('Cluster configured, notifying other services and updating '
'keystone endpoint configuration')
for rid in relation_ids('identity-service'):
identity_joined(rid=rid)
def main():
try:
hooks.execute(sys.argv)
except UnregisteredHookError as e:
log('Unknown hook {} - skipping.'.format(e))
set_os_workload_status(CONFIGS, REQUIRED_INTERFACES)
if __name__ == '__main__':
main()