Dockerfiles

A collection of Dockerfiles for CodeOcean.

Compatible runner managements:

• DockerContainerPool
• Poseidon

Each execution environment should be derived from docker_exec_phusion

Content of this repository

Supported images

• docker_exec_phusion: Base image for all execution environments
• co_execenv_<langauge>: An image used by CodeOcean for the specific programming language and version

All supported images are built for the following architectures:

• amd64
• arm64

Deprecated images

The following images are probably not compatible with Poseidon or other runner managements. Their use is discouraged.

• ubuntu-base: Deprecated ubuntu base image
• ubuntu-<language>: Deprecated images previously used by CodeOcean

Deprecated images are only available for the amd64 architecture.

New or updated images

Each image derived from docker_exec_phusion should be compatible with a non-privileged user called user. Any user code will be executed as this user with the /sbin/setuser script provided by the base image.

Build

docker build --no-cache -t openhpi/docker_exec_phusion docker_exec_phusion/.
docker build --no-cache -t openhpi/co_execenv_java:17 co_execenv_java/17/.
# ...

Debugging

docker run -it openhpi/docker_exec_phusion bash

Publishing

All images are published to Docker Hub and always support the amd64 and arm64 architectures.

docker buildx build --platform linux/amd64,linux/arm64 --tag openhpi/docker_exec_java:17 --push co_execenv_java/17/.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/openHPI/dockerfiles. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

Code of Conduct

Everyone interacting in this project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.