OIDCでGCSにファイルをアップロードするサンプル

config.yml

# .circleci/config.yml

orbs:
  jq: circleci/jq@2.2.0

jobs:
  upload_coverage_report:
    docker:
      - image: google/cloud-sdk
    steps:
      - attach_workspace:
          at: /tmp/workspace
      - jq/install
      - run:
          name: Google Authentication
          command: |
            echo $CIRCLE_OIDC_TOKEN > oidc_token_file.txt
            gcloud iam workload-identity-pools create-cred-config \
                "projects/<< GCP project number >>/locations/global/workloadIdentityPools/circleci/providers/circleci" \
                --output-file="gcp_cred_config_file.txt" \
                --service-account="<< email of service account >>" \
                --credential-source-file="oidc_token_file.txt"
            gcloud auth login --brief --cred-file "gcp_cred_config_file.txt"
      - run: gsutil -m rsync -j html,js,css -r /tmp/workspace/jacoco/testCodeCoverageReport/html gs://path/to/target