steps: - name: 'gcr.io/cloud-builders/docker' args: - 'build' - '--tag=${_SERVER_IMAGE_NAME}:${COMMIT_SHA}' - '--tag=${_SERVER_IMAGE_NAME}:${BRANCH_NAME}' - '--file=test-server.Dockerfile' - '.' - name: 'gcr.io/cloud-builders/docker' args: - 'build' - '--tag=${_CLIENT_IMAGE_NAME}:${COMMIT_SHA}' - '--tag=${_CLIENT_IMAGE_NAME}:${BRANCH_NAME}' - '--file=test-client.Dockerfile' - '.' substitutions: _SERVER_IMAGE_NAME: gcr.io/grpc-testing/xds-interop/java-server _CLIENT_IMAGE_NAME: gcr.io/grpc-testing/xds-interop/java-client images: - '${_SERVER_IMAGE_NAME}:${COMMIT_SHA}' - '${_SERVER_IMAGE_NAME}:${BRANCH_NAME}' - '${_CLIENT_IMAGE_NAME}:${COMMIT_SHA}' - '${_CLIENT_IMAGE_NAME}:${BRANCH_NAME}'