def synchronize_service_credentials():
'''
Broadcast service credentials to peers or consume those that have been
broadcasted by peer, depending on hook context.
'''
if (not cluster.eligible_leader(CLUSTER_RES) or
not os.path.isfile(SERVICE_PASSWD_PATH)):
return
utils.juju_log('INFO', 'Synchronizing service passwords to all peers.')
unison.sync_to_peers(peer_interface='cluster',
paths=[SERVICE_PASSWD_PATH], user=SSH_USER,
verbose=True)
def synchronize_service_credentials():
'''
Broadcast service credentials to peers or consume those that have been
broadcasted by peer, depending on hook context.
'''
if not os.path.isdir(LIB_PATH):
return
peers = cluster.peer_units()
if peers and not cluster.oldest_peer(peers):
utils.juju_log('INFO', 'Deferring action to oldest service unit.')
return
utils.juju_log('INFO', 'Synchronizing service passwords to all peers.')
try:
unison.sync_to_peers(peer_interface='cluster',
paths=[LIB_PATH], user=SSH_USER,
verbose=True)
except Exception:
# to skip files without perms safely
pass
def synchronize_service_credentials():
'''
Broadcast service credentials to peers or consume those that have been
broadcasted by peer, depending on hook context.
'''
if not os.path.isdir(LIB_PATH):
return
peers = cluster.peer_units()
if peers and not cluster.oldest_peer(peers):
utils.juju_log('INFO', 'Deferring action to oldest service unit.')
return
utils.juju_log('INFO', 'Synchronizing service passwords to all peers.')
try:
unison.sync_to_peers(peer_interface='cluster',
paths=[LIB_PATH],
user=SSH_USER,
verbose=True)
except Exception:
# to skip files without perms safely
pass
def identity_changed(relation_id=None, remote_unit=None):
""" A service has advertised its API endpoints, create an entry in the
service catalog.
Optionally allow this hook to be re-fired for an existing
relation+unit, for context see see db_changed().
"""
if not cluster.eligible_leader(CLUSTER_RES):
utils.juju_log('INFO',
'Deferring identity_changed() to service leader.')
return
settings = utils.relation_get_dict(relation_id=relation_id,
remote_unit=remote_unit)
# the minimum settings needed per endpoint
single = set(['service', 'region', 'public_url', 'admin_url',
'internal_url'])
if single.issubset(settings):
# other end of relation advertised only one endpoint
if 'None' in [v for k, v in settings.iteritems()]:
# Some backend services advertise no endpoint but require a
# hook execution to update auth strategy.
relation_data = {}
# Check if clustered and use vip + haproxy ports if so
if cluster.is_clustered():
relation_data["auth_host"] = config['vip']
relation_data["service_host"] = config['vip']
else:
relation_data["auth_host"] = config['hostname']
relation_data["service_host"] = config['hostname']
relation_data["auth_port"] = config['admin-port']
relation_data["service_port"] = config['service-port']
if config['https-service-endpoints'] in ['True', 'true']:
# Pass CA cert as client will need it to
# verify https connections
ca = get_ca(user=SSH_USER)
ca_bundle = ca.get_ca_bundle()
relation_data['https_keystone'] = 'True'
relation_data['ca_cert'] = b64encode(ca_bundle)
if relation_id:
relation_data['rid'] = relation_id
# Allow the remote service to request creation of any additional
# roles. Currently used by Horizon
for role in get_requested_roles(settings):
utils.juju_log('INFO',
"Creating requested role: %s" % role)
create_role(role)
utils.relation_set(**relation_data)
return
else:
ensure_valid_service(settings['service'])
add_endpoint(region=settings['region'],
service=settings['service'],
publicurl=settings['public_url'],
adminurl=settings['admin_url'],
internalurl=settings['internal_url'])
service_username = settings['service']
https_cn = urlparse.urlparse(settings['internal_url'])
https_cn = https_cn.hostname
else:
# assemble multiple endpoints from relation data. service name
# should be prepended to setting name, ie:
# realtion-set ec2_service=$foo ec2_region=$foo ec2_public_url=$foo
# relation-set nova_service=$foo nova_region=$foo nova_public_url=$foo
# Results in a dict that looks like:
# { 'ec2': {
# 'service': $foo
# 'region': $foo
# 'public_url': $foo
# }
# 'nova': {
# 'service': $foo
# 'region': $foo
# 'public_url': $foo
# }
# }
endpoints = {}
for k, v in settings.iteritems():
ep = k.split('_')[0]
x = '_'.join(k.split('_')[1:])
if ep not in endpoints:
endpoints[ep] = {}
endpoints[ep][x] = v
services = []
https_cn = None
for ep in endpoints:
# weed out any unrelated relation stuff Juju might have added
# by ensuring each possible endpiont has appropriate fields
# ['service', 'region', 'public_url', 'admin_url', 'internal_url']
if single.issubset(endpoints[ep]):
ep = endpoints[ep]
ensure_valid_service(ep['service'])
add_endpoint(region=ep['region'], service=ep['service'],
publicurl=ep['public_url'],
adminurl=ep['admin_url'],
internalurl=ep['internal_url'])
services.append(ep['service'])
if not https_cn:
https_cn = urlparse.urlparse(ep['internal_url'])
https_cn = https_cn.hostname
service_username = '******'.join(services)
if 'None' in [v for k, v in settings.iteritems()]:
return
if not service_username:
return
token = get_admin_token()
utils.juju_log('INFO',
"Creating service credentials for '%s'" % service_username)
service_password = get_service_password(service_username)
create_user(service_username, service_password, config['service-tenant'])
grant_role(service_username, config['admin-role'],
config['service-tenant'])
# Allow the remote service to request creation of any additional roles.
# Currently used by Swift and Ceilometer.
for role in get_requested_roles(settings):
utils.juju_log('INFO',
"Creating requested role: %s" % role)
create_role(role, service_username,
config['service-tenant'])
# As of https://review.openstack.org/#change,4675, all nodes hosting
# an endpoint(s) needs a service username and password assigned to
# the service tenant and granted admin role.
# note: config['service-tenant'] is created in utils.ensure_initial_admin()
# we return a token, information about our API endpoints, and the generated
# service credentials
relation_data = {
"admin_token": token,
"service_host": config["hostname"],
"service_port": config["service-port"],
"auth_host": config["hostname"],
"auth_port": config["admin-port"],
"service_username": service_username,
"service_password": service_password,
"service_tenant": config['service-tenant'],
"https_keystone": "False",
"ssl_cert": "",
"ssl_key": "",
"ca_cert": ""
}
if relation_id:
relation_data['rid'] = relation_id
# Check if clustered and use vip + haproxy ports if so
if cluster.is_clustered():
relation_data["auth_host"] = config['vip']
relation_data["service_host"] = config['vip']
# generate or get a new cert/key for service if set to manage certs.
if config['https-service-endpoints'] in ['True', 'true']:
ca = get_ca(user=SSH_USER)
cert, key = ca.get_cert_and_key(common_name=https_cn)
ca_bundle = ca.get_ca_bundle()
relation_data['ssl_cert'] = b64encode(cert)
relation_data['ssl_key'] = b64encode(key)
relation_data['ca_cert'] = b64encode(ca_bundle)
relation_data['https_keystone'] = 'True'
unison.sync_to_peers(peer_interface='cluster',
paths=[SSL_DIR], user=SSH_USER, verbose=True)
utils.relation_set(**relation_data)
synchronize_service_credentials()