Using terraform to create the CKA training clusters

Work in progress!

Instead of running the create_cluster.sh script you can use terraform and the related files in the directories here to create the different clusters in GCP.

Within the current structure of the terraform specific files (.tf) there's some duplication of config. It leaves some room for optimization.

The prepare_gcp.sh creates, enables and configures what you'll need to run some Kubernetes clusters in GCP. The operations done in this script could be moved to terraform in the end instead.

Note that this takes care of creating all resources needed, what isn't fixed here are the rest of the steps within the create_cluster.sh script. These will be moved or replaced!

How-To

1. Install terraform
2. Change the prepare_gcp.sh script variables, use the project ID in step 3.
3. Change the project name within the vars.tf file of the directory (cluster) you want to run.
4. Run prepare_gcp.sh, you might need to enable the Compute Engine API manually from within the Google Cloud Portal.
5. Now from within one of the directories here, run terraform:

terraform init
terraform plan
terraform apply

Todo

• Move preparation of GCP enviornment to terraform
• Optimize the creation of resources via terraform, use templates instead. Automate more with outputs.