Kube-router annotate.yml: Use group 'k8s-cluster' instead of 'all' (#5087) (#5088)

roles/network_plugin/kube-router/tasks/annotate.yml

@@ -18,4 +18,4 @@
   with_items:
   - "{{ kube_router_annotations_all }}"
   delegate_to: "{{ groups['kube-master'][0] }}"
-  when: kube_router_annotations_all is defined and inventory_hostname in groups['all']
\ No newline at end of file
+  when: kube_router_annotations_all is defined and inventory_hostname in groups['k8s-cluster']