96 lines
2.8 KiB
Python
96 lines
2.8 KiB
Python
# Copyright 2020 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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import socket
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from .lib import base_requires
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from charms.reactive import (
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when,
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)
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from charmhelpers.contrib.storage.linux.ceph import (
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CephBrokerRq,
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)
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class CephClient(base_requires.CephRequires):
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ceph_pool_app_name = 'cephfs'
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@when('endpoint.{endpoint_name}.joined')
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def joined(self):
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super().joined()
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@when('endpoint.{endpoint_name}.changed')
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def changed(self):
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super().changed()
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@when('endpoint.{endpoint_name}.departed')
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def departed(self):
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super().changed()
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@when('endpoint.{endpoint_name}.broken')
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def broken(self):
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super().broken()
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@property
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def fsid(self):
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return self.all_joined_units.received.get('fsid')
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def mds_key(self):
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"""Retrieve the cephx key for the local mds unit"""
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return self.all_joined_units.received.get(
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'{}_mds_key'.format(socket.gethostname()))
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def initial_ceph_response(self):
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data = {
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'mds_key': self.mds_key(),
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'fsid': self.fsid(),
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'auth': self.auth(),
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'mon_hosts': self.mon_hosts()
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}
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return data
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def announce_mds_name(self):
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for relation in self.relations:
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relation.to_publish_raw['mds-name'] = socket.gethostname()
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def request_cephfs(self, name):
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rq = self.get_current_request() or CephBrokerRq()
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rq.add_op({
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'op': 'create-cephfs',
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'mds_name': name,
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'data_pool': "{}_data".format(name),
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'metadata_pool': "{}_metadata".format(name)})
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self.send_request_if_needed(rq)
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def initialize_mds(self, name, replicas=3):
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"""
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Request pool setup and mds creation
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@param name: name of mds pools to create
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@param replicas: number of replicas for supporting pools
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"""
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self.create_replicated_pool(
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name="{}_data".format(name),
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replicas=replicas,
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weight=None,
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app_name=self.ceph_pool_app_name)
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self.create_replicated_pool(
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name="{}_metadata".format(name),
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replicas=replicas,
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weight=None,
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app_name=self.ceph_pool_app_name)
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self.request_cephfs(name)
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