StarlingX miscellaneous tools and utilities
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#
# Copyright (c) 2016-2018 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
import exception
from i18n import _LI
# noinspection PyUnresolvedReferences
from oslo_log import log as logging
LOG = logging.getLogger(__name__)
def osd_pool_set_quota(ceph_api, pool_name, max_bytes=0, max_objects=0):
"""Set the quota for an OSD pool_name
Setting max_bytes or max_objects to 0 will disable that quota param
:param pool_name: OSD pool_name
:param max_bytes: maximum bytes for OSD pool_name
:param max_objects: maximum objects for OSD pool_name
"""
# Update quota if needed
prev_quota = osd_pool_get_quota(ceph_api, pool_name)
if prev_quota["max_bytes"] != max_bytes:
resp, b = ceph_api.osd_set_pool_quota(pool_name, 'max_bytes',
max_bytes, body='json')
if resp.ok:
LOG.info(_LI("Set OSD pool_name quota: "
"pool_name={}, max_bytes={}").format(
pool_name, max_bytes))
else:
e = exception.CephPoolSetQuotaFailure(
pool=pool_name, name='max_bytes',
value=max_bytes, reason=resp.reason)
LOG.error(e)
raise e
if prev_quota["max_objects"] != max_objects:
resp, b = ceph_api.osd_set_pool_quota(pool_name, 'max_objects',
max_objects,
body='json')
if resp.ok:
LOG.info(_LI("Set OSD pool_name quota: "
"pool_name={}, max_objects={}").format(
pool_name, max_objects))
else:
e = exception.CephPoolSetQuotaFailure(
pool=pool_name, name='max_objects',
value=max_objects, reason=resp.reason)
LOG.error(e)
raise e
def osd_pool_get_quota(ceph_api, pool_name):
resp, quota = ceph_api.osd_get_pool_quota(pool_name, body='json')
if not resp.ok:
e = exception.CephPoolGetQuotaFailure(
pool=pool_name, reason=resp.reason)
LOG.error(e)
raise e
else:
return {"max_objects": quota["output"]["quota_max_objects"],
"max_bytes": quota["output"]["quota_max_bytes"]}
def osd_pool_exists(ceph_api, pool_name):
response, body = ceph_api.osd_pool_get(
pool_name, "pg_num", body='json')
if response.ok:
return True
return False
def osd_pool_create(ceph_api, pool_name, pg_num, pgp_num):
if pool_name.endswith("-cache"):
# ruleset 1: is the ruleset for the cache tier
# Name: cache_tier_ruleset
ruleset = 1
else:
# ruleset 0: is the default ruleset if no crushmap is loaded or
# the ruleset for the backing tier if loaded:
# Name: storage_tier_ruleset
ruleset = 0
response, body = ceph_api.osd_pool_create(
pool_name, pg_num, pgp_num, pool_type="replicated",
ruleset=ruleset, body='json')
if response.ok:
LOG.info(_LI("Created OSD pool: "
"pool_name={}, pg_num={}, pgp_num={}, "
"pool_type=replicated, ruleset={}").format(
pool_name, pg_num, pgp_num, ruleset))
else:
e = exception.CephPoolCreateFailure(
name=pool_name, reason=response.reason)
LOG.error(e)
raise e
# Explicitly assign the ruleset to the pool on creation since it is
# ignored in the create call
response, body = ceph_api.osd_set_pool_param(
pool_name, "crush_ruleset", ruleset, body='json')
if response.ok:
LOG.info(_LI("Assigned crush ruleset to OS pool: "
"pool_name={}, ruleset={}").format(
pool_name, ruleset))
else:
e = exception.CephPoolRulesetFailure(
name=pool_name, reason=response.reason)
LOG.error(e)
ceph_api.osd_pool_delete(
pool_name, pool_name,
sure='--yes-i-really-really-mean-it',
body='json')
raise e
def osd_pool_delete(ceph_api, pool_name):
"""Delete an osd pool
:param pool_name: pool name
"""
response, body = ceph_api.osd_pool_delete(
pool_name, pool_name,
sure='--yes-i-really-really-mean-it',
body='json')
if response.ok:
LOG.info(_LI("Deleted OSD pool {}").format(pool_name))
else:
e = exception.CephPoolDeleteFailure(
name=pool_name, reason=response.reason)
LOG.warn(e)
raise e
def osd_set_pool_param(ceph_api, pool_name, param, value):
response, body = ceph_api.osd_set_pool_param(
pool_name, param, value,
force=None, body='json')
if response.ok:
LOG.info('OSD set pool param: '
'pool={}, name={}, value={}'.format(
pool_name, param, value))
else:
raise exception.CephPoolSetParamFailure(
pool_name=pool_name,
param=param,
value=str(value),
reason=response.reason)
return response, body
def osd_get_pool_param(ceph_api, pool_name, param):
response, body = ceph_api.osd_get_pool_param(
pool_name, param, body='json')
if response.ok:
LOG.debug('OSD get pool param: '
'pool={}, name={}, value={}'.format(
pool_name, param, body['output'][param]))
else:
raise exception.CephPoolGetParamFailure(
pool_name=pool_name,
param=param,
reason=response.reason)
return body['output'][param]