collect-container-logs: add role

We use this in a few different places and it's really useful
to collect all the logs of all containers.

Change-Id: Idc46a47f444bf48cd040f4f9724f3a6ee8bc8f8e

test-playbooks/registry/test-registry-post.yaml

@@ -1,24 +1,3 @@
 - hosts: all
-  tasks:
-    - name: List containers
-      command: "{{ container_command }} ps -a --format '{{ '{{ .Names }}' }}'"
-      register: docker_containers
-      ignore_errors: true
-
-    - name: Create container log dir
-      file:
-        path: "{{ ansible_user_dir }}/zuul-output/logs/{{ container_command }}"
-        state: directory
-
-    - name: Save container logs
-      loop: "{{ docker_containers.stdout_lines | default([]) }}"
-      shell: "{{ container_command }} logs {{ item }} &> {{ ansible_user_dir }}/zuul-output/logs/{{ container_command }}/{{ item }}.txt"
-      args:
-        executable: /bin/bash
-      ignore_errors: true
-
-    - name: Open container logs permissions
-      file:
-        dest: "{{ ansible_user_dir }}/zuul-output/logs/{{ container_command }}"
-        mode: u=rwX,g=rX,o=rX
-        recurse: yes
+  roles:
+    - collect-container-logs