Fix Kokoro Ubuntu
@@ -14,6 +14,7 @@ gcloud components install docker-credential-gcr
# docker-credential-gcr uses GOOGLE_APPLICATION_CREDENTIALS as the credentials key file
export GOOGLE_APPLICATION_CREDENTIALS=${KOKORO_KEYSTORE_DIR}/72743_jib_integration_testing_key
+docker-credential-gcr configure-docker
# Stops any left-over containers.
docker stop $(docker ps --all --quiet) || true
