Merge pull request #1071 from alesstimec/machine-charm-dashboard-rela…

…tion-fix-02

Another fix for the dashboard relation.

charms/jimm/src/charm.py

@@ -26,6 +26,7 @@
     BlockedStatus,
     MaintenanceStatus,
     ModelError,
+    Relation,
     WaitingStatus,
 )
 
@@ -133,13 +134,7 @@ def _on_config_changed(self, _):
 
         dashboard_relation = self.model.get_relation("dashboard")
         if dashboard_relation:
-            dashboard_relation.data[self.app].update(
-                {
-                    "controller-url": "wss://{}".format(self.config["dns-name"]),
-                    "identity-provider-url": self.config["candid-url"],
-                    "is-juju": str(False),
-                }
-            )
+            self._update_dashboard_relation(dashboard_relation)
 
     def _on_leader_elected(self, _):
         """Update the JIMM configuration that comes from unit
@@ -357,7 +352,11 @@ def _snap(self, *args):
 
     def _on_dashboard_relation_joined(self, event):
         if self.model.unit.is_leader():
-            event.relation.data[self.app].update(
+            self._update_dashboard_relation(event.relation)
+
+    def _update_dashboard_relation(self, relation: Relation):
+        if self.model.unit.is_leader():
+            relation.data[self.app].update(
                 {
                     "controller_url": "wss://{}".format(self.config["dns-name"]),
                     "identity_provider_url": self.config["candid-url"],