Feature Request: Add BITBUCKET_STEP_NAME variable

Question

I am trying to build multiple Docker images with less code duplication.

Every step is doing:

- docker build -t ${ECR_ENDPOINT}/${IMAGE_NAME}:${BITBUCKET_BRANCH} .
- docker push ${ECR_ENDPOINT}/${IMAGE_NAME}:${BITBUCKET_BRANCH}

But it is not possible to set IMAGE_NAME variable per step.

Maybe if BITBUCKET_STEP_NAME is available, I can put the docker image name there ?

https://confluence.atlassian.com/bitbucket/variables-in-pipelines-794502608.html

Right now I am hacking with:

- if [[ $BITBUCKET_PARALLEL_STEP -eq 0 ]];then IMAGE_NAME="image";fi
- if [[ $BITBUCKET_PARALLEL_STEP -eq 1 ]];then IMAGE_NAME="another-image";fi
- if [[ $BITBUCKET_PARALLEL_STEP -eq 2 ]];then IMAGE_NAME="image-foo";fi
- aws ecr get-login-password --region us-east-1 | docker login --username AWS --password-stdin ${ECR_ENDPOINT}/${IMAGE_NAME}
- cd ${IMAGE_NAME}
- docker build -t ${ECR_ENDPOINT}/${IMAGE_NAME}:${BITBUCKET_BRANCH} .
- docker push ${ECR_ENDPOINT}/${IMAGE_NAME}:${BITBUCKET_BRANCH}

Daniil Penkin · Answer

Hm, I didn't get this, sorry.

What I meant was you can create a script like this:

#!/bin/bash

IMAGE_NAME=$1

aws ecr get-login-password --region us-east-1 | docker login --username AWS --password-stdin ${ECR_ENDPOINT}/${IMAGE_NAME}
cd ${IMAGE_NAME}
docker build -t ${ECR_ENDPOINT}/${IMAGE_NAME}:${BITBUCKET_BRANCH} .
docker push ${ECR_ENDPOINT}/${IMAGE_NAME}:${BITBUCKET_BRANCH}

and save it in your repository, let's say as bin/docker-build-push.sh (don't forget to commit it with executable bit on, otherwise you'd need to chmod +x in the pipeline).

Now, the the parallel steps in your pipeline would look like this:

- parallel:
    - step:
        services:
          - docker
        script:
          - bin/docker-build-push.sh "image"
    - step:
        services:
          - docker
        script:
          - bin/docker-build-push.sh "another-image"
    - step:
        services:
          - docker
        script:
          - bin/docker-build-push.sh "image-foo"

This is an equivalent of what you posted in the original message, if I got it right, and it solves duplication problem.

Hope this helps.

Cheers,
Daniil

unknown · Answer

Hello Daniil ,

Thanks for this solution, I might use it for more complex scenarios.

The problem here is that I won't be able to do this even with a script:

- step:
     name: my-image
     script: *build-push
   services:
     - docker

Daniil Penkin · Answer

Hello @[deleted],

Welcome to the Community!

I tagged your question so that Pipelines team will see it sooner.

I'm not saying this is invalid – it totally makes sense to me, – but in this particular case it might be easier (in terms of maintenance) to switch to build scripts stored somewhere in your repository which then are called by Pipelines steps. You'll get all the power of whatever script language you'll be using, while Pipelines will orchestrate the process by pulling the right threads.

So each of the parallel steps would call the very same script with a single parameter – image name.

Does this make sense?

Cheers,
Daniil