wait 5 * 4 secs until Tiller starts

roles/kubernetes-apps/metrics/tasks/main.yml

@@ -1,6 +1,10 @@
 ---
 - name: Metrics | Make sure Helm is installed
   command: "{{ bin_dir }}/helm version"
+  register: helm_ready_result
+  until: helm_ready_result|succeeded
+  retries: 4
+  delay: 5
   when:
     - prometheus_operator_enabled
     - inventory_hostname == groups['kube-master'][0]
@@ -21,7 +25,7 @@
 
 - name: Metrics | Install K8s cluster metrics
   command: "{{ bin_dir }}/helm upgrade --install kube-prometheus     coreos/kube-prometheus     --namespace {{ monitoring_namespace }}"
-  when: 
+  when:
     - prometheus_operator_enabled
     - k8s_metrics_enabled
     - inventory_hostname == groups['kube-master'][0]