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Zephyr Docker Images

This repository contains the Dockerfiles for the following images:

  • Base Image (ci-base): contains only the minimal set of software needed for basic development without the toolchains.
  • CI Image (ci): contains toolchains, the zephyr sdk and additional packages needed for ci operations.
  • Developer Image (zephyr-build): includes additional tools that can be useful for Zephyr development.

Developer Docker Image

Overview

The Developer docker image includes all tools included in the CI image as well as the additional tools that can be useful for Zephyr development, such as the VNC server for testing display sample applications.

The Base docker images should be used to build custom docker images with 3rd party toolchains and tooling.

These images include the Zephyr SDK, which supports building most Zephyr targets.

Installation

Using Pre-built Developer Docker Image

The pre-built developer docker image is available on both GitHub Container Registry (ghcr.io) and DockerHub (docker.io).

GitHub Container Registry (ghcr.io)

docker run -ti -v $HOME/Work/zephyrproject:/workdir \
           ghcr.io/zephyrproject-rtos/zephyr-build:latest

DockerHub (docker.io)

docker run -ti -v $HOME/Work/zephyrproject:/workdir \
           docker.io/zephyrprojectrtos/zephyr-build:latest

Building Developer Docker Image

The developer docker image can be built using the following command:

docker build -f Dockerfile.devel --build-arg UID=$(id -u) --build-arg GID=$(id -g) -t zephyr-build:v<tag> .

It can be used for building Zephyr samples and tests by mounting the Zephyr workspace into it:

docker run -ti -v <path to zephyr workspace>:/workdir zephyr-build:v<tag>

Usage

Building a sample application

Follow the steps below to build and run a sample application:

west build -b qemu_x86 samples/hello_world
west build -t run

Building display sample applications

It is possible to build and run the native POSIX sample applications that produce display outputs by connecting to the Docker instance using a VNC client.

In order to allow the VNC client to connect to the Docker instance, the port 5900 needs to be forwarded to the host:

docker run -ti -p 5900:5900 -v <path to zephyr workspace>:/workdir zephyr-build:v<tag>

Follow the steps below to build a display sample application for the native POSIX board:

west build -b native_posix samples/subsys/display/cfb
west build -t run

The application display output can be observed by connecting a VNC client to localhost at the port 5900. The default VNC password is zephyr.

On a Ubuntu host, this can be done by running the following command:

vncviewer localhost:5900