Allow haproxy role to pull images

Change-Id: I094f1d35f60bf566ba7382504a7425f16ae975d8
Partially-Implements: blueprint pre-pull-images

ansible/roles/haproxy/tasks/deploy.yml

@@ -0,0 +1,6 @@
+---
+- include: config.yml
+  when: inventory_hostname in groups['haproxy']
+
+- include: start.yml
+  when: inventory_hostname in groups['haproxy']

ansible/roles/haproxy/tasks/main.yml

@@ -1,6 +1,2 @@
 ---
-- include: config.yml
-  when: inventory_hostname in groups['haproxy']
-
-- include: start.yml
-  when: inventory_hostname in groups['haproxy']
+- include: "{{ action }}.yml"

ansible/roles/haproxy/tasks/pull.yml

@@ -0,0 +1,14 @@
+---
+- name: Pulling keepalived image
+  kolla_docker:
+    action: "pull_image"
+    common_options: "{{ docker_common_options }}"
+    image: "{{ keepalived_image_full }}"
+  when: inventory_hostname in groups['haproxy']
+
+- name: Pulling haproxy image
+  kolla_docker:
+    action: "pull_image"
+    common_options: "{{ docker_common_options }}"
+    image: "{{ haproxy_image_full }}"
+  when: inventory_hostname in groups['haproxy']