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from charmhelpers.core import hookenv
from charms.reactive import hook
from charms.reactive import RelationBase
from charms.reactive import scopes
class GrafanaProvides(RelationBase):
scope = scopes.GLOBAL
@hook('{provides:grafana-source}-relation-{joined,changed}')
def changed(self):
self.set_state('{relation_name}.available')
@hook('{provides:grafana-source}-relation-{broken,departed}')
def broken(self):
self.remove_state('{relation_name}.available')
def provide(self, source_type, port, description, username=None, password=None):
relation_info = {
'type': source_type,
'url': 'http://{}:{}'.format(hookenv.unit_get('private-address'), port),
'description': description,
}
if username and password:
relation_info['username'] = username
relation_info['password'] = password
self.set_remote(**relation_info)
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