Switch NextCloud to docker_compose in Ansible + upgrade to v22

roles/docker/tasks/services/nextcloud.yml

@@ -1,48 +1,42 @@
 ---
+- name: setup nextcloud containers
+  docker_compose:
+    project_name: "nextcloud"
+    pull: "yes"
+    definition:
+      services:
+        postgres:
+          image: "postgres:10"
+          restart: "unless-stopped"
+          networks:
+            - "nextcloud"
+          volumes:
+            - "{{ nextcloud.volume_folder }}/postgres:/var/lib/postgresql/data"
+          environment: 
+            POSTGRES_DB: "nextcloud"
+            POSTGRES_PASSWORD: "{{ postgres_passwords.nextcloud }}"
+            POSTGRES_USER: "nextcloud"
         
-- name: nextcloud network
-  docker_network:
-    name: nextcloud
+        app:
+          image: "nextcloud:22-apache"
+          restart: "unless-stopped"
+          networks:
+            - "nextcloud"
+            - "external_services"
+          volumes:
+          - "{{ nextcloud.volume_folder }}/app:/var/www/html"
+          environment:
+            VIRTUAL_HOST: "{{ nextcloud.domain }}"
+            LETSENCRYPT_HOST: "{{ nextcloud.domain }}"
+            LETSENCRYPT_EMAIL: "{{ letsencrypt_email }}"
+            POSTGRES_HOST: "nextcloud_postgres_1"
+            POSTGRES_DB: "nextcloud"
+            POSTGRES_USER: "nextcloud"
+            POSTGRES_PASSWORD: "{{ postgres_passwords.nextcloud }}"
 
-- name: nextcloud database volume
-  docker_volume:
-    name: nextcloud_db
-
-- name: nextcloud database container
-  docker_container:
-    name: nextcloud_db
-    image: postgres:10
-    state: started
-    restart_policy: always
-    networks:
-      - name: nextcloud
-    volumes:
-      - nextcloud_db:/var/lib/postgresql/data
-    env:
-      POSTGRES_DB: somethingelse
-      POSTGRES_USER: nextcloud
-      POSTGRES_PASSWORD: "{{ postgres_passwords.nextcloud }}"
-
-- name: nextcloud app volume
-  docker_volume:
-    name: nextcloud_app
-
-- name: nextcloud app container
-  docker_container:
-    name: nextcloud_app
-    image: nextcloud:apache
-    state: started
-    restart_policy: always
-    networks:
-      - name: nextcloud
-      - name: external_services
-    volumes:
-      - nextcloud_app:/var/www/html
-    env:
-      VIRTUAL_HOST: "{{ nextcloud.domain }}"
-      LETSENCRYPT_HOST: "{{ nextcloud.domain }}"
-      LETSENCRYPT_EMAIL: "{{ letsencrypt_email }}"
-      POSTGRES_HOST: nextcloud_db
-      POSTGRES_DB: nextcloud
-      POSTGRES_USER: nextcloud
-      POSTGRES_PASSWORD: "{{ postgres_passwords.nextcloud }}"
+      networks:
+          nextcloud:
+          postfix:
+            external: true
+          external_services:
+            external: true