Add docker-wrapper method for docker-compose

Signed-off-by: Knut Ahlers <knut@ahlers.me>

defaults/main.yml

@@ -5,6 +5,7 @@ docker_compose_stop_action: down
 docker_compose_validate: true
 docker_compose_reload_max_delay: 0 # Have no delay, should be less than docker_compose_reload_minutes
 
+docker_compose_use_docker_image: false
 docker_compose_add_cleanjob: false
 
 docker_compose_config:

tasks/docker-wrapper.yml

@@ -0,0 +1,21 @@
+---
+
+- name: Install wrapper script
+  copy:
+    content: |
+      #!/bin/bash
+      set -euo pipefail
+
+      exec docker run --rm -ti \
+              -v "/var/run/docker.sock:/var/run/docker.sock" \
+              -v "/etc/docker-compose:/etc/docker-compose:ro" \
+              luzifer/docker-compose \
+              "$@"
+    dest: /usr/local/bin/docker-compose
+    group: root
+    mode: '0755'
+    owner: root
+
+- set_fact: docker_compose_binary_path="/usr/local/bin/docker-compose"
+
+...

tasks/main.yml

@@ -4,6 +4,11 @@
 
 - name: "Loading distribution specific instructions for {{ ansible_distribution }}"
   include: "{{ ansible_distribution }}.yml"
+  when: not docker_compose_use_docker_image
+
+- name: Install shell wrapper for docker-compose image
+  include: "docker-wrapper.yml"
+  when: docker_compose_use_docker_image
 
 # Configure docker-compose