CI/CD infra project for Terraform.
Use gcloud auth login to login to the GCP user you wish to use to set up a
Terraform admin project and run ./admin_setup.sh.
Once completed, the Terraform service account key will be located in
${HOME}/.config/gcloud/<your_domain>-tf-controller.json. It is recommended
that you copy its contents into a GitHub secret and then delete this file.