How to pass docker container arguments when running the image in a Jenkinsfile

Question

I have a Dockerfile that ends with

ENTRYPOINT ["node", "index.js"]
CMD ["--help"]

The index.js can take a couple different arguments and I also need to expose a port for the container so if I run it manually I do something like:

docker run -p 3000:3000 my_container:latest --arg1 somearg --arg2 anotherarg

How do I do this in a Jenkinsfile? My test will communicate with this container so it needs to be running before I run the test. I use withRun() get it running before the test runs but I don't see how to specify the --arg1 somearg --arg2 anotherarg

stage('TestMicroservice') {
    //
    // HOW DO I SPECIFY '--arg1 somearg --arg2 anotherarg'?
    //
    docker.image("my_container:latest").withRun('-p 3000:3000') {
        sh 'npm run test-microservice'
    }
}

Answer 1

You can use the second argument of withRun

.withRun('-p 3000:3000', '--arg1 somearg --arg2 anotherarg')

Answer 2

Use .withRun('-p 3000:3000', '--arg1 arg1 --arg2 arg2'). The documentation for this is in the docker-workflow-plugin here.