save LE certificates on data disk

closes #25

ansible/roles/traefik/tasks/main.yml

@@ -2,10 +2,14 @@
   file:
     path: "{{ service_dir }}"
     state: directory
+- name: Create data directory
+  file:
+    path: "{{ data_dir }}"
+    state: directory
 - name: Create acme file
   copy:
     content: ""
-    dest: "{{ service_dir }}/acme.json"
+    dest: "{{ data_dir }}/acme.json"
     force: no
     mode: 0600
 - name: Copy Docker Compose script

ansible/roles/traefik/templates/docker-compose.yml.j2

@@ -18,7 +18,7 @@ services:
       - /var/run/docker.sock:/var/run/docker.sock
       - {{ service_dir }}/traefik.toml:/etc/traefik/traefik.toml
       - {{ service_dir }}/services.toml:/etc/traefik/services.toml
-      - {{ service_dir }}/acme.json:/acme.json
+      - {{ data_dir }}/acme.json:/acme.json
     networks:
       - traefik
     labels:

ansible/roles/traefik/vars/main.yml

@@ -1,2 +1,3 @@
 service_name: traefik
 service_dir: "{{ base_service_dir }}/{{ service_name }}"
+data_dir: "{{ base_data_dir }}/{{ service_name }}"