Add label

src/charm.py

@@ -278,6 +278,9 @@ def patch_port(self, use_node_port: bool = False) -> None:
                     name=service_name,
                     namespace=self._namespace,
                     ownerReferences=pod0.metadata.ownerReferences,
+                    labels={
+                        "app.kubernetes.io/name": self.app.name,
+                    },
                 ),
                 spec=lightkube.models.core_v1.ServiceSpec(
                     selector={"app.kubernetes.io/name": self.app.name},

src/upgrade.py

@@ -91,8 +91,8 @@ def _on_pgbouncer_pebble_ready(self, event: WorkloadEvent) -> None:
         if self.state not in ["upgrading", "recovery"]:
             return
 
-        if self.charm.unit.is_leader():
-            self.charm.patch_port(self.charm.client_relation.external_connectivity())
+        if self.charm.unit.is_leader() and self.charm.client_relation.external_connectivity():
+            self.charm.patch_port(True)
             for relation in self.model.relations.get(CLIENT_RELATION_NAME, []):
                 self.charm.client_relation.update_connection_info(relation)
 

tests/unit/test_charm.py

@@ -495,6 +495,7 @@ def test_patch_port(self, _client):
                 name="pgbouncer-k8s-nodeport",
                 namespace=self.charm._namespace,
                 ownerReferences=_client.return_value.get.return_value.metadata.ownerReferences,
+                labels={"app.kubernetes.io/name": "pgbouncer-k8s"},
             ),
             spec=lightkube.models.core_v1.ServiceSpec(
                 selector={"app.kubernetes.io/name": self.charm.app.name},