add nextcloud stack using NFS and remote postgres db

ansible/roles/nextcloud/docker-stack.yml.j2

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+# vi: ft=yaml
+version: '3.8'
+
+networks:
+  traefik:
+    external: true
+
+volumes:
+  data:
+    driver_opts:
+      type: "nfs"
+      o: "addr=192.168.30.10,nolock,soft,rw"
+      device: ":/mnt/data/nextcloud/data"
+
+services:
+  app:
+    image: nextcloud:26
+    volumes:
+      - type: volume
+        source: data
+        target: /var/www/html
+        volume:
+          nocopy: true
+    environment:
+      - POSTGRES_USER=swarm
+      - POSTGRES_DB=nextcloud
+      - POSTGRES_PASSWORD={{ database_passwords.nextcloud }}
+      - POSTGRES_HOST=192.168.30.10
+    networks:
+      - traefik
+    deploy:
+      labels:
+        - traefik.enable=true
+        - traefik.http.routers.nextcloud.entrypoints=websecure
+        - traefik.http.routers.nextcloud.rule=Host(`cloud.pim.kunis.nl`)
+        - traefik.http.routers.nextcloud.tls=true
+        - traefik.http.routers.nextcloud.tls.certresolver=letsencrypt
+        - traefik.http.routers.nextcloud.service=nextcloud
+        - traefik.http.services.nextcloud.loadbalancer.server.port=80
+        - traefik.docker.network=traefik

ansible/roles/nextcloud/tasks/main.yml

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+- name: Deploy Docker stack
+  docker_stack:
+    name: nextcloud
+    compose:
+      - "{{ lookup('template', '{{ role_path }}/docker-stack.yml.j2') | from_yaml }}"