recator to use kube module, finally fix race condition in storage tasks

contrib/network-storage/heketi/roles/provision/tasks/heketi.yml

@@ -0,0 +1,25 @@
+---
+- name: "Kubernetes Apps | Lay Down Heketi"
+  become: true
+  template: { src: "heketi-deployment.json.j2", dest: "{{ kube_config_dir }}/heketi-deployment.json" }
+  register: "rendering"
+- name: "Kubernetes Apps | Install and configure Heketi"
+  kube:
+    name: "GlusterFS"
+    filename: "{{ kube_config_dir }}/heketi-deployment.json"
+    state: "{{ rendering.changed | ternary('latest', 'present') }}"
+- name: "Ensure heketi is up and running."
+  changed_when: false
+  register: "heketi_state"
+  vars:
+    heketi_state: { stdout: "{}" }
+    pods_query: "items[?kind=='Pod'].status.conditions|[0][?type=='Ready'].status|[0]"
+    deployments_query: "items[?kind=='Deployment'].status.conditions|[0][?type=='Available'].status|[0]"
+  command: "{{ bin_dir }}/kubectl get deployments,pods --selector=glusterfs --output=json"
+  until:
+      - "heketi_state.stdout|from_json|json_query(pods_query) == 'True'"
+      - "heketi_state.stdout|from_json|json_query(deployments_query) == 'True'"
+  retries: 60
+  delay: 5
+- set_fact:
+    heketi_pod_name: "{{ heketi_state.stdout|from_json|json_query(\"items[?kind=='Pod'].metadata.name|[0]\") }}"