feat: Kubernetes cluster plugin (#18760)

* refactor: k8s plugins

Signed-off-by: Matthew Clarke <mclarke@spotify.com>

* feat: add kubernetes cluster plugin

Signed-off-by: Matthew Clarke <mclarke@spotify.com>

* fix: yarn fix

Signed-off-by: Matthew Clarke <mclarke@spotify.com>

* fix: tsc

Signed-off-by: Matthew Clarke <mclarke@spotify.com>

* fix: types

Signed-off-by: Matthew Clarke <mclarke@spotify.com>

* chore: missing changeset

Signed-off-by: Matthew Clarke <mclarke@spotify.com>

* chore: update api report

Signed-off-by: Matthew Clarke <mclarke@spotify.com>

---------

Signed-off-by: Matthew Clarke <mclarke@spotify.com>

packages/app/package.json

@@ -52,6 +52,7 @@
     "@backstage/plugin-jenkins": "workspace:^",
     "@backstage/plugin-kafka": "workspace:^",
     "@backstage/plugin-kubernetes": "workspace:^",
+    "@backstage/plugin-kubernetes-cluster": "workspace:^",
     "@backstage/plugin-lighthouse": "workspace:^",
     "@backstage/plugin-linguist": "workspace:^",
     "@backstage/plugin-linguist-common": "workspace:^",

packages/app/src/components/catalog/EntityPage.tsx

@@ -103,6 +103,10 @@ import {
 } from '@backstage/plugin-jenkins';
 import { EntityKafkaContent } from '@backstage/plugin-kafka';
 import { EntityKubernetesContent } from '@backstage/plugin-kubernetes';
+import {
+  isKubernetesClusterAvailable,
+  EntityKubernetesClusterContent,
+} from '@backstage/plugin-kubernetes-cluster';
 import {
   EntityLastLighthouseAuditCard,
   EntityLighthouseContent,
@@ -898,6 +902,13 @@ const resourcePage = (
         </Grid>
       </Grid>
     </EntityLayout.Route>
+    <EntityLayout.Route
+      path="/kubernetes-cluster"
+      title="Kubernetes Cluster"
+      if={isKubernetesClusterAvailable}
+    >
+      <EntityKubernetesClusterContent />
+    </EntityLayout.Route>
     <EntityLayout.Route
       path="/puppetdb"
       title="Puppet"