Merge pull request #59 from smarterclayton/publish

Add an image publisher step

playbooks/publish_image.yaml

@@ -0,0 +1,38 @@
+---
+- name: Publish the most recent image
+  hosts: localhost
+  connection: local
+  gather_facts: no
+  tasks:
+
+  - name: Require openshift_gcp_image
+    fail:
+      msg: "A source image name or family is required for image publishing.  Please ensure `openshift_gcp_image` is defined."
+    when: openshift_gcp_image is undefined
+
+  - name: Require openshift_gcp_target_image
+    fail:
+      msg: "A target image name or family is required for image publishing.  Please ensure `openshift_gcp_target_image` is defined."
+    when: openshift_gcp_target_image is undefined
+
+  - block:
+      - name: Retrieve images in the {{ openshift_gcp_target_image }} family
+        command: >
+          gcloud --project "{{ openshift_gcp_project }}" compute images list 
+            "--filter=family={{ openshift_gcp_target_image }}" 
+            --format=json --sort-by ~creationTimestamp
+        register: images
+      - name: Prune oldest images
+        command: >
+          gcloud --project "{{ openshift_gcp_project }}" compute images delete "{{ item['name'] }}"
+        with_items: "{{ (images.stdout | default('[]') | from_json )[( openshift_gcp_keep_images | int ):] }}"
+    when: openshift_gcp_keep_images is defined
+
+  - name: Copy the latest image in the family {{ openshift_gcp_image }} to {{ openshift_gcp_target_image }}
+    command: >
+      gcloud --project "{{ openshift_gcp_target_project | default(openshift_gcp_project) }}" 
+        beta compute images create 
+        "{{ openshift_gcp_target_image_name | default(openshift_gcp_target_image + '-' + lookup('pipe','date +%Y%m%d-%H%M%S')) }}" 
+        --family "{{ openshift_gcp_target_image }}"
+        --source-image-family "{{ openshift_gcp_image }}"
+        --source-image-project "{{ openshift_gcp_project }}"