An example of bitbucket pipeline configuration to sync changed files with Google Cloud Storage

bitbucket-pipelines.yml

image: <your_image>

pipelines:
  default:
    - step:
        name: <description>
        deployment: <your_deployment_name>
        image: google/cloud-sdk:320.0.0-alpine
        script:
          # on linux you can use `$ base64 -w 0 < ~/.google_app_credentials.json` to generate $GCP_KEY_FILE
          # then you should add it to <your_deployment_name> variables on bitbucket to be able to use it here
          - echo "${GCP_KEY_FILE}" | base64 -d >> /tmp/key-file.json
          - gcloud auth activate-service-account --key-file=/tmp/key-file.json --quiet
          - gcloud config set project <your_project> --quiet
          # sync everything from the `./<your_directory>` dir
          # gsutil rsync documentation: https://cloud.google.com/storage/docs/gsutil/commands/rsync
          - gsutil -m rsync -r -d -c -u ./<your_directory> gs://<bucket_name>/<directory_path>