Add user support

README.md

@@ -45,6 +45,7 @@ containers:
     active: true
     image: nextcloud
     container_name: nextcloud
+	user: www-data
     include_global_env_vars: false
     volumes:
       - "{{ appdata_path }}/nextcloud/html:/var/www/html"

templates/docker-compose.yml.j2

@@ -18,6 +18,9 @@ services:
 {% if container.build is defined %}
     build: {{ container.build }}
 {% endif %}
+{% if container.user is defined %}
+	user: {{ container.user }}
+{$ endif %}
 {% if container.privileged is defined %}
     privileged: {{ container.privileged }}
 {% endif %}