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Configuring Grafana datasource over the relation #5

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Configuring Grafana datasource over the relation #5

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28 changes: 11 additions & 17 deletions src/interface_http.py
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
import sys
import logging
sys.path.append('lib')

from ops.framework import (
Expand All @@ -8,10 +9,7 @@
ObjectEvents,
)

from adapters import (
framework,
k8s,
)
from adapters import framework

# Ideally, this interface and its tests should be located in its own
# repository. However, to keep the initial development process simple,
Expand Down Expand Up @@ -98,17 +96,13 @@ def relation_name(self):
return self._relation_name

def on_relation_changed(self, event):
# TODO: Add some logic here to pick up the right relation in case
# the client charm is related to more than one unit. E.g. when the
# server is in HA mode.
relation = self.adapter.get_relations(self.relation_name)[0]
juju_app = relation.app.name
juju_model = self.adapter.get_model_name()

# Fetch the k8s Service resource fronting the server pods
service_spec = k8s.get_service_spec(juju_model=juju_model,
juju_app=juju_app)

server_details = ServerDetails(host=service_spec.host,
port=service_spec.port)
remote_relation_data = event.relation.data[event.unit]
logging.debug(
"Received from Prom: %s " % list(remote_relation_data.items())
)

server_details = ServerDetails(
host=remote_relation_data['ingress-address'],
port=remote_relation_data['prometheus-port']
)
self.on.server_available.emit(server_details)