How do I update environment variables in a step for another step to use?

[Bradley Holbrook]

I have a script that updates keys for docker login.

• If I do NOT run the script that updates keys the in a step, the docker login works perfectly.
• If I run the update keys script on my local machine, the script works, and the docker login works
• If I run the update keys in the pipeline build, the script works but the docker login does NOT work (because the environment variables are not being updated)
• The update keys script needs to run before my docker login

How do I get an updated copy of the environment variables in between steps?

bitbucket-pipelines.yml

image: node:8.2.1

pipelines: 
  default: 
    - step: 
        name: Update Docker Password for Login 
        script: 
          - npm install aws-sdk request-promise base-64 
          - node build-tools/update-bb-aws-docker-login.js 
    - step: 
        name: Push Server to AWS Repository 
        script: 
          - docker login -u AWS -p $AWS_DOCKER_LOGIN https://$AWS_DOCKER_URL 
          - docker build -t dev . 
          - docker tag dev:latest $AWS_DOCKER_URL/dev:latest 
          - docker push $AWS_DOCKER_URL/dev:latest 

options: 
  docker: true

[Philip Hodder]

Environment Variables are not carried across steps. They are always copied from those set in the Pipelines UI. If you'd like to update them you can use the Bitbucket Pipelines REST API to do so. Alternatively you can combine the two steps so that the new credentials are available in the push step.