Fix tag based deploy of apps by skipping kubeadm dns tasks (#3462)

roles/kubernetes-apps/ansible/tasks/cleanup_dns.yml

@@ -22,6 +22,7 @@
     state: absent
   when:
     - kubeadm_enabled|default(false)
+    - kubeadm_init is defined
     - kubeadm_init.changed|default(false)
     - inventory_hostname == groups['kube-master'][0]
 
@@ -50,5 +51,6 @@
     - 'svc'
   when:
     - kubeadm_enabled|default(false)
+    - kubeadm_init is defined
     - kubeadm_init.changed|default(false)
     - inventory_hostname == groups['kube-master'][0]