def test_configure_compression(self):
"""Enable compression and validate properties flush through to pool."""
if not self.mimic_or_newer:
logging.info('Skipping test, Mimic or newer required.')
return
if self.application_name == 'ceph-osd':
# The ceph-osd charm itself does not request pools, neither does
# the BlueStore Compression configuration options it have affect
# pool properties.
logging.info('test does not apply to ceph-osd charm.')
return
elif self.application_name == 'ceph-radosgw':
# The Ceph RadosGW creates many light weight pools to keep track of
# metadata, we only compress the pool containing actual data.
app_pools = ['.rgw.buckets.data']
else:
# Retrieve which pools the charm under test has requested skipping
# metadata pools as they are deliberately not compressed.
app_pools = [
pool
for pool in zaza_ceph.get_pools_from_broker_req(
self.application_name, model_name=self.model_name)
if 'metadata' not in pool
]
ceph_pools_detail = zaza_ceph.get_ceph_pool_details(
model_name=self.model_name)
logging.debug('BEFORE: {}'.format(ceph_pools_detail))
try:
logging.info('Checking Ceph pool compression_mode prior to change')
self._assert_pools_properties(
app_pools, ceph_pools_detail,
{'options': {'compression_mode': 'none'}})
except KeyError:
logging.info('property does not exist on pool, which is OK.')
logging.info('Changing "bluestore-compression-mode" to "force" on {}'
.format(self.application_name))
with self.config_change(
{'bluestore-compression-mode': 'none'},
{'bluestore-compression-mode': 'force'}):
# Retrieve pool details from Ceph after changing configuration
ceph_pools_detail = zaza_ceph.get_ceph_pool_details(
model_name=self.model_name)
logging.debug('CONFIG_CHANGE: {}'.format(ceph_pools_detail))
logging.info('Checking Ceph pool compression_mode after to change')
self._assert_pools_properties(
app_pools, ceph_pools_detail,
{'options': {'compression_mode': 'force'}})
ceph_pools_detail = zaza_ceph.get_ceph_pool_details(
model_name=self.model_name)
logging.debug('AFTER: {}'.format(ceph_pools_detail))
logging.debug(juju_utils.get_relation_from_unit(
'ceph-mon', self.application_name, None,
model_name=self.model_name))
logging.info('Checking Ceph pool compression_mode after restoring '
'config to previous value')
self._assert_pools_properties(
app_pools, ceph_pools_detail,
{'options': {'compression_mode': 'none'}})
def test_pools_from_broker_req(self):
self.patch_object(ceph_utils.juju_utils, 'get_relation_from_unit')
self.get_relation_from_unit.return_value = {
'broker_req': ('{"api-version": 1, "ops": ['
'{"op": "create-pool", "name": "cinder-ceph", '
'"compression-mode": null},'
'{"op": "create-pool", "name": "cinder-ceph", '
'"compression-mode": "aggressive"}]}'),
}
self.assertEquals(
ceph_utils.get_pools_from_broker_req('anApplication',
'aModelName'),
['cinder-ceph'])
self.get_relation_from_unit.assert_called_once_with(
'ceph-mon', 'anApplication', None, model_name='aModelName')