Stop reporting changes when docker pull is already up to date.

playbooks/common/openshift-cluster/upgrades/v3_1_to_v3_2/pre.yml

@@ -163,6 +163,8 @@
   - name: Verify containers are available for upgrade
     command: >
       docker pull {{ openshift.common.cli_image }}:{{ openshift_image_tag }}
+    register: pull_result
+    changed_when: "'Downloaded newer image' in pull_result.stdout"
     when: openshift.common.is_containerized | bool
 
   - name: Check latest available OpenShift RPM version

roles/etcd/tasks/main.yml

@@ -12,6 +12,8 @@
 
 - name: Pull etcd container
   command: docker pull {{ openshift.etcd.etcd_image }}
+  register: pull_result
+  changed_when: "'Downloaded newer image' in pull_result.stdout"
   when: etcd_is_containerized | bool
 
 - name: Install etcd container service file

roles/openshift_cli/tasks/main.yml

@@ -6,6 +6,8 @@
 - name: Pull CLI Image
   command: >
     docker pull {{ openshift.common.cli_image }}:{{ openshift_image_tag }}
+  register: pull_result
+  changed_when: "'Downloaded newer image' in pull_result.stdout"
   when: openshift.common.is_containerized | bool
 
 - name: Create /usr/local/bin/openshift cli wrapper

roles/openshift_master/tasks/main.yml

@@ -30,6 +30,8 @@
 - name: Pull master image
   command: >
     docker pull {{ openshift.master.master_image }}:{{ openshift_image_tag }}
+  register: pull_result
+  changed_when: "'Downloaded newer image' in pull_result.stdout"
   when: openshift.common.is_containerized | bool
 
 - name: Create openshift.common.data_dir

roles/openshift_node/tasks/main.yml

@@ -41,11 +41,15 @@
 - name: Pull node image
   command: >
     docker pull {{ openshift.node.node_image }}:{{ openshift_image_tag }}
+  register: pull_result
+  changed_when: "'Downloaded newer image' in pull_result.stdout"
   when: openshift.common.is_containerized | bool
 
 - name: Pull OpenVSwitch image
   command: >
     docker pull {{ openshift.node.ovs_image }}:{{ openshift_image_tag }}
+  register: pull_result
+  changed_when: "'Downloaded newer image' in pull_result.stdout"
   when: openshift.common.is_containerized | bool and openshift.common.use_openshift_sdn | bool
 
 - name: Install the systemd units
@@ -129,12 +133,12 @@
   service: name={{ openshift.common.service_type }}-node enabled=yes state=started
   register: node_start_result
   ignore_errors: yes
-  
+
 - name: Wait 30 seconds for docker initialization whenever node has failed
   pause:
     seconds: 30
   when: node_start_result | failed
-  
+
 - name: Start and enable node again
   service: name={{ openshift.common.service_type }}-node enabled=yes state=started
   register: node_start_result