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requires.py
66
requires.py
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@ -1,34 +1,76 @@
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import socket
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from charms.reactive import hook
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from charms.reactive import hook, set_state
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from charms.reactive import RelationBase
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from charms.reactive import scopes
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from charms.reactive import is_state
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from charmhelpers.core.hookenv import (
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DEBUG)
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from charmhelpers.core.hookenv import (
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log, status_set, service_name)
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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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# Each CephFS juju service gets its own set of data/metadata pools
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def create_broker_requests():
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log("Creating broker request")
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name = socket.gethostname()
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rq = CephBrokerRq()
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rq.add_op_create_pool(name="{}_data".format(service_name()),
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replica_count=3,
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weight=None)
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rq.add_op_create_pool(name="{}_metadata".format(service_name()),
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replica_count=3,
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weight=None)
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# Create CephFS
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rq.ops.append(
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{
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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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}
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)
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return rq
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def async_pool_request():
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status_set('maintenance', "Requesting CephFS pool creation")
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rq = create_broker_requests()
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if is_request_complete(rq, relation='mds'):
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log('Broker request complete', level=DEBUG)
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set_state("cephfs.pools.created")
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status_set('maintenance', "CephFS pools created")
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else:
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log('sending broker request: {}'.format(rq),
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level=DEBUG)
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send_request_if_needed(rq, relation='mds')
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class CephClient(RelationBase):
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scope = scopes.GLOBAL
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auto_accessors = ['key', 'fsid', 'auth', 'mon_hosts', 'admin_key']
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auto_accessors = ['key', 'fsid', 'auth',
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'ceph-public-address']
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@hook('{requires:ceph-mds}-relation-{joined,changed}')
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def changed(self):
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self.set_remote(key='mds-name', value=socket.gethostname())
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self.set_state('{relation_name}.connected')
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admin_key = None
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key = None
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fsid = None
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auth = None
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mon_hosts = None
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ceph_public_address = None
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try:
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key = self.key
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except AttributeError:
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pass
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try:
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admin_key = self.admin_key
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except AttributeError:
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pass
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try:
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fsid = self.fsid
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except AttributeError:
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@ -40,20 +82,20 @@ class CephClient(RelationBase):
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pass
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try:
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mon_hosts = self.mon_hosts
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ceph_public_address = self.ceph_public_address
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except AttributeError:
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pass
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data = {
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'key': key,
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'admin_key': admin_key,
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'fsid': fsid,
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'auth': auth,
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'mon_hosts': mon_hosts
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'ceph_public_address': ceph_public_address
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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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async_pool_request()
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@hook('{requires:ceph-mds}-relation-{broken,departed}')
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def broken(self):
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