Add support for Archlinux.

tasks/docker-compose.yml

@@ -13,6 +13,7 @@
   when: >
     docker_compose_current_version.stdout is defined
     and docker_compose_version not in docker_compose_current_version.stdout
+    and ansible_os_family != "Archlinux"
 
 - name: Install Docker Compose (if configured).
   get_url:
@@ -22,3 +23,12 @@
   when: >
     docker_compose_current_version.stdout is not defined
     or docker_compose_version not in docker_compose_current_version.stdout
+    and ansible_os_family != "Archlinux"
+
+- name: Install Docker Compose (Archlinux)
+  package:
+    name: "docker-compose"
+    state: "{{ docker_package_state }}"
+  notify: restart docker
+  ignore_errors: "{{ ansible_check_mode }}"
+  when: ansible_os_family == 'Archlinux'

tasks/main.yml

@@ -11,6 +11,15 @@
     state: "{{ docker_package_state }}"
   notify: restart docker
   ignore_errors: "{{ ansible_check_mode }}"
+  when: ansible_os_family != 'Archlinux'
+
+- name: Install Docker (Archlinux).
+  package:
+    name: "docker"
+    state: "{{ docker_package_state }}"
+  notify: restart docker
+  ignore_errors: "{{ ansible_check_mode }}"
+  when: ansible_os_family == 'Archlinux'
 
 - name: Ensure /etc/docker/ directory exists.
   file: