Dockerization

[mfojtak]

Could it be wrapped into docker container which would have pytest and cromwell and this preinstalled?

[jdidion]

Good suggestion. Let's do this after 1.0.

[jdidion]

This is non-trivial. For container-based executors (e.g. Cromwell and Miniwdl), Docker needs to run within Docker. This is possible (https://www.docker.com/blog/docker-can-now-run-within-docker/) but requires:

• Adding -privileged to docker run, which may require modifying the workflow engine
• Building the Docker image with a few extra dependencies

There's also the question of whether to pre-package all the supported runtimes in the image, or just provide a base image that others can build on by including their preferred runtimes.

[patmagee]

@jdidion the privileged issue can be solved by adding the current user to the docker group. This is not necessarily trivial, but for people looking for running it this way, they may be willing to do this.