configuration
----------------------------------------ubuntu gcloud installation steps-------------------------------------------------------
https://cloud.google.com/sdk/docs/quickstart-debian-ubuntu
CLOUD_SDK_REPO="cloud-sdk-$(grep VERSION_CODENAME /etc/os-release | cut -d '=' -f 2)"
echo "deb http://packages.cloud.google.com/apt $CLOUD_SDK_REPO main" | sudo tee -a /etc/apt/sources.list.d/google-cloud-sdk.list
curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
sudo apt-get update && sudo apt-get install google-cloud-sdk
gcloud init
gcloud auth list
gcloud config list
gcloud info