Sample Bitbucket Pipelines Config

bitbucket-pipelines.yml

options:
  # Enable docker for the Pipeline
  docker: true

pipelines:
  branches:
    master:
      - step:
          name: Build app for Production (create-react-app)
          image: mhart/alpine-node:10
          caches:
            - node
          script:
            # Install Dependencies
            - npm install
            # Run our Tests
            - npm run test
            # Package App for Production
            - npm run build
          artifacts:
            # Pass the "build" Directory to the Next Step
            - build/**
      - step:
          name: Build Docker Image
          script:
            # NOTE: Set $DOCKER_HUB_USERNAME and $DOCKER_HUB_PASSWORD as environment SECRETS in Bitbucket repository settings
            # Use $BITBUCKET_COMMIT to tag our docker image
            - export IMAGE_NAME=<docker-username>/<docker-image>:$BITBUCKET_COMMIT
            # Build the Docker image (this will use the Dockerfile in the root of the repo)
            - docker build -t $IMAGE_NAME .
            # Authenticate with the Docker Hub registry
            - docker login -u $DOCKER_HUB_USERNAME -p $DOCKER_HUB_PASSWORD
            # Push the new Docker image to the Docker registry
            - docker push $IMAGE_NAME
      - step:
          # trigger: manual
          name: Deploy to Kubernetes
          image: atlassian/pipelines-kubectl
          script:
            # NOTE: $KUBECONFIG is secret stored as a base64 encoded string
            # Base64 decode our kubeconfig file into a temporary kubeconfig.yml file (this will be destroyed automatically after this step runs)
            - echo $KUBECONFIG | base64 -d > kubeconfig.yml
            # Tell our Kubernetes deployment to use the new Docker image tag
            - kubectl --kubeconfig=kubeconfig.yml --namespace=<namespace> set image deployment/<deployment-name> <deployment-name>=<docker-username>/<docker-image>:$BITBUCKET_COMMIT

Helpful

where are these params coming from <docker-username>/<docker-image>:

Those params come from either Account variables, Repository variables or Deployment variables that you can setup in Bitbucket. Here's an article on how to set those as well as default variables that are available: https://confluence.atlassian.com/bitbucket/variables-in-pipelines-794502608.html