Add watchtower to manage auto-update of containers

playbook.yml

@@ -23,6 +23,7 @@
       - docker_registry
       - drone
       - websites
+      - watchtower
 
     smtp_host: postfix
     smtp_port: 587

roles/docker/tasks/services/watchtower.yml

@@ -0,0 +1,12 @@
+---
+- name: watchtower container
+  docker_container:
+    name: watchtower
+    image: v2tec/watchtower
+    restart_policy: unless-stopped
+    networks:
+      - name: external_services
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
+      - /root/.docker/config.json:/config.json
+    command: ["--label-enable"]

roles/docker/tasks/services/websites.yml

@@ -11,6 +11,8 @@
       VIRTUAL_HOST : "{{ data_coop_website.domain }}"
       LETSENCRYPT_HOST: "{{ data_coop_website.domain }}"
       LETSENCRYPT_EMAIL: "{{ letsencrypt_email }}"
+    labels:
+      com.centurylinklabs.watchtower.enable: "true"    
 
 - name: setup cryptohagen.dk website docker container
   docker_container:
@@ -23,3 +25,5 @@
       VIRTUAL_HOST : "{{ cryptohagen_website.domain }}"
       LETSENCRYPT_HOST: "{{ cryptohagen_website.domain }}"
       LETSENCRYPT_EMAIL: "{{ letsencrypt_email }}"
+    labels:
+      com.centurylinklabs.watchtower.enable: "true"