70 lines
2.4 KiB
Python
70 lines
2.4 KiB
Python
#!/usr/bin/python
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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 charms.reactive import RelationBase
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from charms.reactive import hook
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from charms.reactive import scopes
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class KeystoneRequires(RelationBase):
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scope = scopes.GLOBAL
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# These remote data fields will be automatically mapped to accessors
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# with a basic documentation string provided.
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auto_accessors = ['private-address', 'service_host', 'service_protocol',
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'service_port', 'service_tenant', 'service_username',
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'service_password', 'service_tenant_id', 'auth_host',
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'auth_protocol', 'auth_port']
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@hook('{requires:keystone}-relation-joined')
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def joined(self):
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self.set_state('{relation_name}.connected')
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def update_state(self):
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if self.base_data_complete():
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self.set_state('{relation_name}.available')
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else:
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self.remove_state('{relation_name}.available')
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@hook('{requires:keystone}-relation-changed')
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def changed(self):
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self.update_state()
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@hook('{requires:keystone}-relation-{broken,departed}')
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def departed(self):
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self.update_state()
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def base_data_complete(self):
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"""
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Get the connection string, if available, or None.
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"""
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for field in self.auto_accessors:
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attr_method = getattr(self, field.replace('-', '_'))
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if not attr_method():
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return False
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return True
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def register_endpoints(self, service, region, public_url, internal_url, admin_url):
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"""
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Register this service with keystone
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"""
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relation_info = {
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'service': service,
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'public_url': public_url,
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'internal_url': internal_url,
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'admin_url': admin_url,
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'region': region,
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}
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self.set_local(**relation_info)
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self.set_remote(**relation_info)
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