How to specify shm size ?

[fvalenduc]

Is there a way to specify the size of the shared memory when starting a container with docker$container$run ? With the command line, that would be docker run ... --shm-size... I tried to find this option in the documentation but without success. Sorry If my question as already been answered somewhere else.

[richfitz]

This appears not to be documented, nor do I have a full example of it working - but some pointers:

• https://richfitz.github.io/stevedore/reference/docker_container_collection.html
• modify the host_config argument here, following the underlying SDK docs here: https://docs.docker.com/engine/api/v1.43/#tag/Container/operation/ContainerCreate

It might look like passing:

host_config = list(ShmSize = jsonlite::unbox(10000000))

through to container creation or run. See this test for a similar example

[fvalenduc]

Indeed, host_config = list(ShmSize = jsonlite::unbox(10000000)) works perfectly well. Thanks for your rapid anwser.