Switch to ensure-docker role

Change-Id: I3731640af6189b24c6baaccae59adf2dfcf96f46
Signed-off-by: Andrii Ostapenko <andrii.ostapenko@att.com>

tools/gate/playbooks/docker-image-build.yaml

@@ -16,51 +16,9 @@
   tasks:
     - include_vars: vars.yaml
 
-    - name: Install Docker (Debian)
-      when: ansible_os_family == 'Debian'
-      block:
-        - file:
-            path: "{{ item }}"
-            state: directory
-          with_items:
-            - /etc/docker/
-            - /etc/systemd/system/docker.service.d/
-            - /var/lib/docker/
-        - mount:
-            path: /var/lib/docker/
-            src: tmpfs
-            fstype: tmpfs
-            opts: size=25g
-            state: mounted
-        - copy: "{{ item }}"
-          with_items:
-            - content: "{{ docker_daemon | to_json }}"
-              dest: /etc/docker/daemon.json
-            - src: files/docker-systemd.conf
-              dest: /etc/systemd/system/docker.service.d/
-        - apt_key:
-            url: https://download.docker.com/linux/ubuntu/gpg
-        - apt_repository:
-            repo: deb http://{{ zuul_site_mirror_fqdn }}/deb-docker xenial stable
-        - apt:
-            name: "{{ item }}"
-            allow_unauthenticated: True
-          with_items:
-            - docker-ce
-            - python3-pip
-            - python3-setuptools
-        - pip:
-            name: docker
-            version: 2.7.0
-            executable: pip3
-        # NOTE(SamYaple): Allow all connections from containers to host so the
-        # containers can access the http server for git and wheels
-        - iptables:
-            action: insert
-            chain: INPUT
-            in_interface: docker0
-            jump: ACCEPT
-      become: True
+    - name: Ensure docker
+      include_role:
+        name: ensure-docker
 
     - name: Debug inputs
       block: