We used Terraform to create the infra needed for running our own Concourse. This includes things like a GKE cluster, a static IP, a DNS entry, and a Postgres database.

NOTE: Do not manually edit these resources using the Google Cloud UI, API, or CLI. Instead, please update the .tf files and follow the below steps again.

To run Terraform to create or update the infrastructure:

Install the gcloud CLI and authenticate as yourself, if you haven't already.
Use gcloud auth application-default login if you haven't already. This is not optional.
Install terraform if you haven't already. Use brew or brew install tfenv and then use tfenv. At the time of writing this README, we were using Terraform v1.6.6.
cd into this directory: cd infra/terraform/gcloud
Run terraform init, if you haven't already for this directory.
Run terraform fmt.
Run terraform validate.
Run TF_VAR_project=$PINNIPED_GCP_PROJECT terraform apply. This assumes that you have already exported an env var called PINNIPED_GCP_PROJECT whose value is the name of the GCP project.

If you do not need to run terraform apply because someone else has already done that, then you still need to follow the above directions up to and including running terraform init to set up terraform on your computer.

To delete the entire Concourse deployment and all its related cloud infrastructure, use terraform destroy. There is no way to undo this action. This will also delete the Cloud SQL database which contains all CI job history.