118 lines
3.3 KiB
Python
Executable File
118 lines
3.3 KiB
Python
Executable File
# Copyright 2016 Canonical Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from subprocess import CalledProcessError, check_output
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import sys
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sys.path.append('hooks')
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import rados
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from charmhelpers.core.hookenv import log, action_get, action_fail
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from charmhelpers.contrib.storage.linux.ceph import pool_set, \
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set_pool_quota, snapshot_pool, remove_pool_snapshot
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# Connect to Ceph via Librados and return a connection
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def connect():
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try:
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cluster = rados.Rados(conffile='/etc/ceph/ceph.conf')
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cluster.connect()
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return cluster
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except (rados.IOError,
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rados.ObjectNotFound,
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rados.NoData,
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rados.NoSpace,
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rados.PermissionError) as rados_error:
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log("librados failed with error: {}".format(str(rados_error)))
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def create_crush_rule():
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# Shell out
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pass
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def list_pools():
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try:
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cluster = connect()
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pool_list = cluster.list_pools()
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cluster.shutdown()
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return pool_list
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except (rados.IOError,
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rados.ObjectNotFound,
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rados.NoData,
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rados.NoSpace,
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rados.PermissionError) as e:
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action_fail(e.message)
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def pool_get():
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key = action_get("key")
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pool_name = action_get("pool_name")
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try:
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value = (check_output(['ceph', 'osd', 'pool', 'get', pool_name, key])
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.decode('UTF-8'))
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return value
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except CalledProcessError as e:
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action_fail(e.message)
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def set_pool():
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key = action_get("key")
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value = action_get("value")
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pool_name = action_get("pool_name")
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pool_set(service='ceph', pool_name=pool_name, key=key, value=value)
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def pool_stats():
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try:
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pool_name = action_get("pool-name")
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cluster = connect()
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ioctx = cluster.open_ioctx(pool_name)
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stats = ioctx.get_stats()
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ioctx.close()
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cluster.shutdown()
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return stats
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except (rados.Error,
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rados.IOError,
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rados.ObjectNotFound,
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rados.NoData,
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rados.NoSpace,
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rados.PermissionError) as e:
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action_fail(e.message)
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def delete_pool_snapshot():
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pool_name = action_get("pool-name")
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snapshot_name = action_get("snapshot-name")
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remove_pool_snapshot(service='ceph',
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pool_name=pool_name,
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snapshot_name=snapshot_name)
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# Note only one or the other can be set
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def set_pool_max_bytes():
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pool_name = action_get("pool-name")
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max_bytes = action_get("max")
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set_pool_quota(service='ceph',
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pool_name=pool_name,
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max_bytes=max_bytes)
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def snapshot_ceph_pool():
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pool_name = action_get("pool-name")
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snapshot_name = action_get("snapshot-name")
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snapshot_pool(service='ceph',
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pool_name=pool_name,
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snapshot_name=snapshot_name)
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