Initial cluster setup
- terraform
- https://registry.terraform.io/providers/digitalocean/digitalocean/latest/docs/resources/kubernetes_cluster
- https://thenewstack.io/5-common-risks-in-infrastructure-as-code-templates/
- https://github.com/gruntwork-io/terratest
- remote state: https://medium.com/@chris_linguine/dont-push-your-terraform-state-files-945cfdf71f88
- https://learn.hashicorp.com/tutorials/terraform/cdktf
- https://portworx.com/
- https://www.projectcalico.org/