Possibility to pass flags to the docker run command

[TenPetr]

I need to run Docker in Docker in my pipelines and I am not able to start the daemon without passing the --privileged flag to the docker run command. Now, you are only able to specify a custom docker image name, but you cannot pass flags.

Is there any other way, how to start DinD inside the toolchain pipeline or would it be possible to add this feature to the classic pipelines?

Thanks a lot

[youming-lin]

@TenPetr
Hi, I suggest asking in our Slack: https://ic-devops-slack-invite.us-south.devops.cloud.ibm.com/

This should be possible, although I've never tried it myself. The Tekton version of this pipeline uses a dind task to containerize:
https://github.com/open-toolchain/code-engine-toolchain/blob/master/.tekton/ci/ci-pipeline.yml#L187-L236

The referenced task is here: https://github.com/open-toolchain/tekton-catalog/blob/22769850e376e934528f708c25ca705b50e94a7c/container-registry/task-execute-in-dind.yaml

You might be able to replicate what the task is doing in classic.