charm-cinder/hooks/cinder_contexts.py

86 lines
2.5 KiB
Python

from charmhelpers.core.hookenv import (
config,
relation_ids,
service_name,
)
from charmhelpers.contrib.openstack.context import (
OSContextGenerator,
ApacheSSLContext as SSLContext,
)
from charmhelpers.contrib.openstack.utils import (
get_os_codename_install_source
)
from charmhelpers.contrib.hahelpers.cluster import (
determine_apache_port,
determine_api_port,
)
class ImageServiceContext(OSContextGenerator):
interfaces = ['image-service']
def __call__(self):
if not relation_ids('image-service'):
return {}
return {'glance_api_version': config('glance-api-version')}
class CephContext(OSContextGenerator):
interfaces = ['ceph-cinder']
def __call__(self):
"""Used to generate template context to be added to cinder.conf in the
presence of a ceph relation.
"""
# TODO(this should call is_relation_made)
if not relation_ids('ceph'):
return {}
service = service_name()
if get_os_codename_install_source(config('openstack-origin')) \
>= "icehouse":
volume_driver = 'cinder.volume.drivers.rbd.RBDDriver'
else:
volume_driver = 'cinder.volume.driver.RBDDriver'
return {
'volume_driver': volume_driver,
# ensure_ceph_pool() creates pool based on service name.
'rbd_pool': service,
'rbd_user': service,
'host': service
}
class HAProxyContext(OSContextGenerator):
interfaces = ['cinder-haproxy']
def __call__(self):
'''Extends the main charmhelpers HAProxyContext with a port mapping
specific to this charm.
Also used to extend cinder.conf context with correct api_listening_port
'''
haproxy_port = config('api-listening-port')
api_port = determine_api_port(config('api-listening-port'))
apache_port = determine_apache_port(config('api-listening-port'))
ctxt = {
'service_ports': {'cinder_api': [haproxy_port, apache_port]},
'osapi_volume_listen_port': api_port,
}
return ctxt
class ApacheSSLContext(SSLContext):
interfaces = ['https']
external_ports = [8776]
service_namespace = 'cinder'
def __call__(self):
# late import to work around circular dependency
from cinder_utils import service_enabled
if not service_enabled('cinder-api'):
return {}
return super(ApacheSSLContext, self).__call__()