Add proxy configuration.

defaults/main.yml

@@ -27,3 +27,8 @@ docker_yum_repo_enable_test: 0
 
 # A list of users who will be added to the docker group.
 docker_users: []
+
+# proxy settings
+http_proxy: ""
+https_proxy: ""
+no_proxy: ""

tasks/docker-service.yml

@@ -0,0 +1,16 @@
+---
+- name: Ensure docker service dir exists.
+  file:
+    path: /etc/systemd/system/docker.service.d
+    state: directory
+
+- name: Add Docker configuration with proxy set.
+  template:
+    src: proxy.conf.j2
+    dest: /etc/systemd/system/docker.service.d/proxy.conf
+  register: proxy_template
+
+- name: Reload systemd daemon if template is changed.
+  systemd:
+    daemon_reload: true
+  when: proxy_template is changed

tasks/main.yml

@@ -15,6 +15,9 @@
 - import_tasks: docker-1809-shim.yml
   when: ansible_service_mgr == 'systemd'
 
+- import_tasks: docker-service.yml
+  when: ansible_service_mgr == 'systemd'
+
 - name: Ensure Docker is started and enabled at boot.
   service:
     name: docker

templates/proxy.conf.j2

@@ -0,0 +1,5 @@
+# {{ ansible_managed }}
+[Service]
+Environment='HTTP_PROXY={{ http_proxy }}'
+Environment='HTTPS_PROXY={{ https_proxy }}'
+Environment='NO_PROXY={{ no_proxy }}'