`display-operator`

display-operator gives a pod on a liken cluster a screen to draw on, with no privilege and no host path. You write a claim that names the screen, such as the connector HDMI-A-1, a monitor by its model or serial, or any screen at least 1920 pixels wide. The pod that holds the claim gets a Wayland socket, and its window is on that screen. You don’t configure anything on the machine.

Things you can run this way:

a kiosk: one fullscreen browser on the screen by the door,
a dashboard on a wall monitor, with each panel in its own pod,
a film or a game on the TV, with a camera feed in the corner.

Start here:

Install the operator . The install applies the manifests that this site serves at /deploy/ , so you don’t need a clone.
Put a window on a screen : the claim, the Deployment, and what the container gets.
Put regions on a screen : a Layout gives each pod its own rectangle of one screen.
Take a picture of a screen : see what a screen shows, from your laptop.
Devices : every attribute that a claim can select on.

How it works

The operator runs the Weston compositor in its own pod. The pod claims the machine’s graphics card, which liken publishes, and publishes each connector of the card as its own device under the Dynamic Resource Allocation (DRA) driver display.liken.sh. When your pod’s claim is prepared, the compositor opens a Wayland socket for it, and a window on that socket shows on that screen.

The operator also creates a Display for each monitor. It reports the panel’s brightness, power, and other controls, and you can set them there without a claim. A monitor’s speakers pair with its screen through monitor.liken.sh/id, which this operator and audio-operator both read from the same monitor.

display-operator is one of the extension operators for claiming hardware . You install it only if your cluster needs screens.