Add DaemonSet check for wait-for-pods role

To wait for pods are up which are managed by daemonset controller
as well as statefulsets controller.
This works even if there are not such controllers.

Change-Id: Ib88a9023db6aac151bce71a2bb4ffbcea570e4f5

roles/wait-for-pods/tasks/main.yaml

@@ -10,14 +10,31 @@
       register: _statefulsets
 
     - name: Ensure the number of ready replicas matches the replicas
-      shell: kubectl get {{ zj_item }} -ogo-template='{{ '{{' }}eq .status.replicas .status.readyReplicas{{ '}}' }}'
+      shell: kubectl get {{ zj_sts_item }} -ogo-template='{{ '{{' }}eq .status.replicas .status.readyReplicas{{ '}}' }}'
       register: _is_ready
       until: _is_ready.stdout == 'true'
       retries: 60
       delay: 5
       loop: "{{ _statefulsets.stdout_lines }}"
       loop_control:
-        loop_var: zj_item
+        loop_var: zj_sts_item
+
+# For the DaemonSet, very similar with StatefulSet
+- name: Wait for all DaemonSets to become ready
+  block:
+    - name: Retrieve all DaemonSets
+      command: kubectl get daemonset -o name
+      register: _daemonsets
+
+    - name: Ensure the ready number matches the scheduled number
+      shell: kubectl get {{ zj_ds_item }} -ogo-template='{{ '{{' }}eq .status.currentNumberScheduled .status.numberReady{{ '}}' }}'
+      register: _is_ready
+      until: _is_ready.stdout == 'true'
+      retries: 60
+      delay: 5
+      loop: "{{ _daemonsets.stdout_lines }}"
+      loop_control:
+        loop_var: zj_ds_item
 
 - name: Wait for all pods to become ready
   command: kubectl wait --for=condition=Ready --timeout=120s pod --all