UserSpace

The UserSpace enables users to deploy and manage containers running on the rc_visard. Standalone containers and docker-compose stacks are supported.

Note

Familiarity with Docker containers is required.

If available and enabled, the UserSpace can be accessed in the Web GUI in the menu under UserSpace. This page shows the running apps and containers with their current state and health, in case a health-check is available. Each container lists the published ports. If their protocol is http or https, these containers can be accessed directly in the Web GUI.

Configuration

Configure UserSpace via the Web GUI

To configure the UserSpace via the Web GUI, navigate to UserSpace and click on Configure UserSpace.

Print the Roboception UserSpace Key from here or https://roboception.com/roboception-userspace-key/ and place it in front of the camera so that it is completely visible in both, left and right camera images.

Use the buttons to enable/disable or reset the UserSpace. Resetting will delete all containers, volumes, and the portainer configuration, including secrets and users, and cannot be undone.

Configure HTTP proxy

If your organization uses a proxy server to connect to the internet, you need to configure this proxy server for Docker and portainer in order to pull container images stored in container registries like Docker Hub and pull git repositories in portainer. These proxy settings apply only to Docker and portainer itself, not to the apps running in containers.

Usually this also means that you need to trust the CA certificate of the proxy server in order to use HTTPS connections.

Both can be configured via Web GUI under UserSpace and then Configure UserSpace.

View running applications

UserSpace information including running apps and their published ports can be queried via REST-API userspace endpoint or viewed in the Web GUI in the menu under UserSpace.

Container labels org.opencontainers.image.XXX can be used to provide additional information to the API which is also shown in the Web GUI, see REST-API UserSpaceContainer definition.

Network access to UserSpace applications

To access containers via network, the container ports need to be published to host ports.

If a container provides a web interface via http or https, use container labels to show a button in the Web GUI to open that directly:

  • com.roboception.app.http: all exposed TCP ports use http
  • com.roboception.app.https.port=1234,5678: comma separated list with https ports

Interfaces

Docker containers managed in the UserSpace can use the public interfaces of the rc_visard. In particular, Docker containers can access synchronized image sets via gRPC and can call the REST-API interface. The rc_visard (the host) can be accessed under the Docker bridge IP (in default Docker bridge network 172.17.0.1).

Restrictions

Some restrictions for containers apply:

  • Containers cannot be privileged.
  • No access to the host network (a Docker bridge network is used instead).
  • Only paths inside cloned git repositories with a docker-compose stack can be mounted, all other host paths cannot be mounted.
  • Host devices cannot be accessed. This includes e.g. USB and GPU devices.
  • Well known and internally used ports on the host cannot be bound. This includes ports below 1024, ports from 4200 to 4299 and the ports 2342, 2343, 2344, 2345, 3956, 4840, 5353, 6379, 7000, 7001, 7002, 7003, 9100, 9118, 9256, 9445, 9446, 11311, 22350, 22352, 50010, 50051, 50052, 50053 and 50054.