feat: add drawio instance for nextcloud and opencloud

Signed-off-by: Bert-Jan Fikse <bert-jan@whatwedo.ch>

roles/drawio/templates/docker-compose.yml.j2

@@ -0,0 +1,28 @@
+services:
+  drawio:
+    image: {{ drawio_image }}
+    container_name: {{ drawio_service_name }}
+    restart: unless-stopped
+    networks:
+      - {{ drawio_traefik_network }}
+{% if drawio_extra_hosts is defined and drawio_extra_hosts | length > 0 %}
+    extra_hosts:
+{% for host in drawio_extra_hosts %}
+      - "{{ host }}"
+{% endfor %}
+{% endif %}
+    labels:
+      - traefik.enable=true
+      - traefik.docker.network={{ drawio_traefik_network }}
+      - traefik.http.routers.{{ drawio_service_name }}.rule=Host(`{{ drawio_domain }}`)
+      - traefik.http.services.{{ drawio_service_name }}.loadbalancer.server.port={{ drawio_port }}
+{% if drawio_use_ssl %}
+      - traefik.http.routers.{{ drawio_service_name }}.entrypoints=websecure
+      - traefik.http.routers.{{ drawio_service_name }}.tls=true
+{% else %}
+      - traefik.http.routers.{{ drawio_service_name }}.entrypoints=web
+{% endif %}
+
+networks:
+  {{ drawio_traefik_network }}:
+    external: true