container: support custom built images, mariadb, bind mounts, custom user

docs/container.md

@@ -27,13 +27,23 @@ docker_vhost_domains:
 # Other optional variables
 
 ```
-docker_database: postgres # Database to set up in a separate container, supports postgres and mongo
-database_passwords: # Needed for postgres
+docker_service_suffix: production # For running multiple instances of the same service
+
+docker_host_user: true # Creates a user on the host and makes the docker container use the same uid/gid. Bind mount volume directories will be owned by this user
+
+docker_database: postgres # Database to set up in a separate container, supports postgres, mariadb and mongo
+database_passwords: # Needed for postgres and mariadb
   gitea: secret
 
+docker_additional_services:
+  - memcached
+
 docker_volumes:
-  - gitea_data:/data
-  - /var/lib/gitea/.ssh:/data/git/.ssh
+  - name: data
+    path: /data
+  - src: /var/lib/gitea/.ssh
+    path: /data/git/.ssh
+
 docker_published_ports:
   - "127.0.0.1:{{ ports.gitea.ssh }}:22"
 docker_env:
@@ -42,4 +52,9 @@ docker_env:
 
 docker_network_mode: host # Usually you don't want to define this
 
+dockerfile: # For building a custom container image locally
+  run:
+    - "apt-get update && apt-get install -y libmemcached-dev zlib1g-dev && pecl install memcached-3.2.0 && docker-php-ext-enable memcached"
+
+
 ```