125 lines
4.5 KiB
Python
125 lines
4.5 KiB
Python
# Copyright 2017 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 json
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from charms.reactive import hook
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from charms.reactive import RelationBase
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from charms.reactive import scopes
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from charmhelpers.core import hookenv
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from charmhelpers.core.hookenv import log
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from charmhelpers.contrib.network.ip import format_ipv6_addr
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from charmhelpers.contrib.storage.linux.ceph import (
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CephBrokerRq,
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is_request_complete,
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send_request_if_needed,
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)
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class CephClientRequires(RelationBase):
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scope = scopes.GLOBAL
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auto_accessors = ['auth', 'key']
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@hook('{requires:ceph-client}-relation-{joined}')
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def joined(self):
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self.set_state('{relation_name}.connected')
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@hook('{requires:ceph-client}-relation-{changed,departed}')
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def changed(self):
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data = {
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'key': self.key(),
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'auth': self.auth(),
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'mon_hosts': self.mon_hosts()
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}
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if all(data.values()):
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self.set_state('{relation_name}.available')
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json_rq = self.get_local(key='broker_req')
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if json_rq:
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rq = CephBrokerRq()
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j = json.loads(json_rq)
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rq.ops = j['ops']
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log("changed broker_req: {}".format(rq.ops))
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if rq and is_request_complete(rq,
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relation=self.relation_name):
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log("Setting ceph-client.pools.available")
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self.set_state('{relation_name}.pools.available')
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else:
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log("incomplete request. broker_req not found")
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@hook('{requires:ceph-client}-relation-{broken}')
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def broken(self):
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self.remove_state('{relation_name}.available')
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self.remove_state('{relation_name}.connected')
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self.remove_state('{relation_name}.pools.available')
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def create_pool(self, name, replicas=3, weight=None):
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"""
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Request pool setup
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@param name: name of pool to create
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@param replicas: number of replicas for supporting pools
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"""
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# json.dumps of the CephBrokerRq()
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json_rq = self.get_local(key='broker_req')
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if not json_rq:
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rq = CephBrokerRq()
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rq.add_op_create_pool(name="{}".format(name),
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replica_count=replicas,
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weight=weight)
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self.set_local(key='broker_req', value=rq.request)
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send_request_if_needed(rq, relation=self.relation_name)
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else:
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rq = CephBrokerRq()
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try:
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j = json.loads(json_rq)
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log("Json request: {}".format(json_rq))
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rq.ops = j['ops']
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send_request_if_needed(rq, relation=self.relation_name)
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except ValueError as err:
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log("Unable to decode broker_req: {}. Error: {}".format(
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json_rq, err))
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def get_remote_all(self, key, default=None):
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"""Return a list of all values presented by remote units for key"""
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# TODO: might be a nicer way todo this - written a while back!
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values = []
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for conversation in self.conversations():
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for relation_id in conversation.relation_ids:
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for unit in hookenv.related_units(relation_id):
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value = hookenv.relation_get(key,
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unit,
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relation_id) or default
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if value:
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values.append(value)
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return list(set(values))
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def mon_hosts(self):
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"""List of all monitor host public addresses"""
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hosts = []
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addrs = self.get_remote_all('ceph-public-address')
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for ceph_addrs in addrs:
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# NOTE(jamespage): This looks odd but deals with
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# use with ceph-proxy which
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# presents all monitors in
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# a single space delimited field.
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for addr in ceph_addrs.split(' '):
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hosts.append(format_ipv6_addr(addr) or addr)
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hosts.sort()
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return hosts
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