Fix cluster frame display issue (#5518)

* Fix cluster frame display issue

- Add some defensive code to prevent this sort of infinite loop

- Add some unit tests

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* fix unit tests

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Fix build

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Fix lint

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Factor out injectable for getting of cluster config data

Signed-off-by: Sebastian Malton <sebastian@malton.name>

src/common/cluster-types.ts

@@ -67,6 +67,15 @@ export interface ClusterModel {
   labels?: Record<string, string>;
 }
 
+/**
+ * This data is retreived from the kubeconfig file before calling the cluster constructor.
+ *
+ * That is done to remove the external dependency on the construction of Cluster instances.
+ */
+export interface ClusterConfigData {
+  clusterServerUrl: string;
+}
+
 /**
  * The complete set of cluster settings or preferences
  */