This function runs the gcloud installation routine via
apt-get install google-cloud-sdk. It also installs the kubectl
package for Kubernetes functionality. For more information, see the
"Getting started" vignette.
kub_install_gcloud()
The path where gcloud was installed
To install gcloud, this function requires sudo privileges. To do that, it prompts the user for their password and maintains it until the end of execution. All commands run this way are printed to the console so the user can know everything that's happening.