diff --git a/roles/container/meta/argument_specs.yml b/roles/container/meta/argument_specs.yml
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+---
+
+argument_specs:
+  main:
+    short_description: Docker container
+    description: "Sets up a docker container. Supports defining networks, building a custom image, setting up memcached, databases and a reverse proxy, creating a user on the host to run the container as, named volumes, bind mounts (either auto-created or existing)."
+    options:
+      docker_service:
+        description: "The name of the docker service (example: gitea)"
+        type: str
+        required: true
+      docker_service_suffix:
+        description: "A suffix used to allow running multiple instances of the same service on a host. If docker_service is gitea and docker_service_suffix production, the container will be gitea_production"
+        type: str
+        required: false
+      docker_image:
+        description: "Docker image to use for the container. If dockerfile is defined, it will be used as base for locally built image (example: gitea/gitea:latest)"
+        type: str
+        required: true
+      docker_host_user:
+        description: "If true, creates a user on the host for this service. The container will run as this user's uid/gid. Bind mount volumes will be owned by this user."
+        type: bool
+        required: false
+        default: true
+
+      docker_database:
+        description: "Database type to set up. It will be run in a docker container accessible to the service at host <service name (with _suffix if suffix is defined)>_db on default port."
+        type: str
+        required: false
+        choices:
+          - postgres
+          - mariadb
+          - mongodb
+          - none
+        default: none
+      databse_passwords:
+        description: "database_passwords[docker_service] is a string with the password used for communication between the service and database. Required if docker_database is postgres or mariadb"
+        type: dict
+        required: false
+      docker_additional_services:
+        description: "List of additional services to configure (in separate containers). These will be accessible with hostname <docker_service_name>[_suffix]_<additional_service>"
+        type: list
+        required: false
+        elements: str
+        choices:
+          - memcached
+        default: []
+
+      docker_volume_type:
+        description: "Defines whether to use named volumes or bind mounts for volume definitions with name"
+        type: str
+        required: false
+        choices:
+          - named
+          - bind
+        default: named
+      docker_volumes:
+        description: "List of docker volumes to be mounted inside the container. Each element is a dict with path and exactly one of name, src, template or rclone."
+        type: list
+        required: false
+        default: []
+        elements: dict
+        options:
+          path:
+            description: "The path inside the container to mount at"
+            type: str
+            required: true
+          name:
+            description: "If docker_volume_type is named, the name of the named volume to be mounted at path. If docker_volume_type is bind, the name of the folder to create under /opt/<service>[/suffix]/mounts/ and mount at path."
+            type: str
+            required: false
+          src:
+            description: "Host path to bind mount inside the container."
+            type: str
+            required: false
+          template:
+            description: "Name of template without .j2 extension. Will be templated at /opt/<service>[/suffix]/mounts/<template> and mounted inside the container."
+            type: str
+            required: false
+          rclone:
+            description: "Name of the rclone volume to mount. Must be defined using the rclone_config variable."
+            type: str
+            required: false
+      reverse_proxy_type:
+        description: "Defines which kind of reverse proxy to configure for the container. Traefik support is experimental."
+        type: str
+        required: false
+        choices:
+          - caddy
+          - traefik
+          - none
+        default: caddy
+      docker_image_http_port:
+        description: "The port for http listener inside the container. Will be mapped to the host port defined in ports. Required if reverse_proxy_type is not none."
+        type: int
+        required: false
+      ports:
+        description: "ports[docker_service]['http'] or ports[docker_service]['https'] defines the port on which the container will listen on for reverse proxy connections. Required if reverse_proxy_type is caddy."
+        type: dict
+        required: false
+      docker_vhost_domains:
+        description: "docker_vhost_domains[docker_service] is a list which defines which domains should be proxied to the container. Required if reverse_proxy_type is not none"
+
+      docker_published_ports:
+        description: "A list of published ports in docker format (<host listen address>:<host port>:<container port>)"
+        type: list
+        required: false
+        default: []