Allow keystone role to pull images

Change-Id: I64aff93368da7580b6cc1369a42be0904a670f98
Partially-Implements: blueprint pre-pull-images

ansible/roles/keystone/tasks/deploy.yml

@@ -0,0 +1,14 @@
+---
+- include: config.yml
+  when: inventory_hostname in groups['keystone']
+
+- include: bootstrap.yml
+  when: inventory_hostname in groups['keystone']
+
+- include: start.yml
+  when: inventory_hostname in groups['keystone']
+
+- include: register.yml
+  when: inventory_hostname in groups['keystone']
+
+- include: check.yml

ansible/roles/keystone/tasks/main.yml

@@ -1,14 +1,2 @@
 ---
-- include: config.yml
-  when: inventory_hostname in groups['keystone']
-
-- include: bootstrap.yml
-  when: inventory_hostname in groups['keystone']
-
-- include: start.yml
-  when: inventory_hostname in groups['keystone']
-
-- include: register.yml
-  when: inventory_hostname in groups['keystone']
-
-- include: check.yml
+- include: "{{ action }}.yml"

ansible/roles/keystone/tasks/pull.yml

@@ -0,0 +1,7 @@
+---
+- name: Pulling keystone image
+  kolla_docker:
+    action: "pull_image"
+    common_options: "{{ docker_common_options }}"
+    image: "{{ keystone_image_full }}"
+  when: inventory_hostname in groups['keystone']