def ceph_changed(rid=None, unit=None):
if 'ceph' not in CONFIGS.complete_contexts():
log('ceph relation incomplete. Peer not ready?')
return
if not ensure_ceph_keyring(
service=service_name(), user='******', group='nova'):
log('Could not create ceph keyring: peer not ready?')
return
CONFIGS.write(ceph_config_file())
CONFIGS.write(CEPH_SECRET)
CONFIGS.write(NOVA_CONF)
# With some refactoring, this can move into NovaComputeCephContext
# and allow easily extended to support other compute flavors.
key = relation_get(attribute='key', rid=rid, unit=unit)
if config('virt-type') in ['kvm', 'qemu', 'lxc'] and key:
create_libvirt_secret(secret_file=CEPH_SECRET,
secret_uuid=CEPH_SECRET_UUID,
key=key)
if is_request_complete(get_ceph_request()):
log('Request complete')
# Ensure that nova-compute is restarted since only now can we
# guarantee that ceph resources are ready, but only if not paused.
if (not is_unit_paused_set() and
not is_broker_action_done('nova_compute_restart', rid, unit)):
service_restart('nova-compute')
mark_broker_action_done('nova_compute_restart', rid, unit)
else:
send_request_if_needed(get_ceph_request())
def ceph_changed(rid=None, unit=None):
if 'ceph' not in CONFIGS.complete_contexts():
log('ceph relation incomplete. Peer not ready?')
return
if not ensure_ceph_keyring(service=service_name(), user='******',
group='nova'):
log('Could not create ceph keyring: peer not ready?')
return
CONFIGS.write(ceph_config_file())
CONFIGS.write(CEPH_SECRET)
CONFIGS.write(NOVA_CONF)
# With some refactoring, this can move into NovaComputeCephContext
# and allow easily extended to support other compute flavors.
key = relation_get(attribute='key', rid=rid, unit=unit)
if config('virt-type') in ['kvm', 'qemu', 'lxc'] and key:
create_libvirt_secret(secret_file=CEPH_SECRET,
secret_uuid=CEPH_SECRET_UUID, key=key)
if is_request_complete(get_ceph_request()):
log('Request complete')
# Ensure that nova-compute is restarted since only now can we
# guarantee that ceph resources are ready, but only if not paused.
if (not is_unit_paused_set() and
not is_broker_action_done('nova_compute_restart', rid,
unit)):
service_restart('nova-compute')
mark_broker_action_done('nova_compute_restart', rid, unit)
else:
send_request_if_needed(get_ceph_request())
def _handle_ceph_request():
"""Handles the logic for sending and acknowledging Ceph broker requests."""
# First, we create a request. We will test if this request is equivalent
# to a previous one. If it is not, we will send it.
request = get_ceph_request()
log("New ceph request {} created.".format(request.request_id), level=DEBUG)
# Here we will know if the new request is equivalent, and if it is, whether
# it has completed, or just sent.
states = get_request_states(request, relation='ceph')
log("Request states: {}.".format(states), level=DEBUG)
complete = True
sent = True
# According to existing ceph broker messaging logic, we are expecting only
# 1 rid.
for rid in states.keys():
if not states[rid]['complete']:
complete = False
if not states[rid]['sent']:
sent = False
if not sent and not complete:
break
# If either complete or sent is True, then get_request_states has validated
# that the current request is equivalent to a previously sent request.
if complete:
log('Previous request complete.')
# If the request is complete, we need to restart nova once and mark it
# restarted. The broker response comes from a specific unit, and can
# only be read when this hook is invoked by the remote unit (the
# broker), unless specifically queried for the given unit. Therefore,
# we iterate across all units to find which has the broker response,
# and we process the response regardless of this execution context.
broker_rid, broker_unit = _get_broker_rid_unit_for_previous_request()
# If we cannot determine which unit has the response, then it means
# there is no response yet.
if (broker_rid, broker_unit) == (None, None):
log(
"Aborting because there is no broker response "
"for any unit at the moment.",
level=DEBUG)
return
# Ensure that nova-compute is restarted since only now can we
# guarantee that ceph resources are ready, but only if not paused.
if (not is_unit_paused_set() and not is_broker_action_done(
'nova_compute_restart', broker_rid, broker_unit)):
log('Restarting Nova Compute as per request '
'{}.'.format(request.request_id),
level=DEBUG)
service_restart('nova-compute')
mark_broker_action_done('nova_compute_restart', broker_rid,
broker_unit)
else:
if sent:
log("Request {} already sent, not sending "
"another.".format(request.request_id),
level=DEBUG)
else:
log("Request {} not sent, sending it "
"now.".format(request.request_id),
level=DEBUG)
for rid in relation_ids('ceph'):
log('Sending request {}'.format(request.request_id),
level=DEBUG)
relation_set(relation_id=rid, broker_req=request.request)
