This post will explore deploying Hashicorp Vault to K3s (Kubernetes distribution) using Helm and then configuring it with Terraform. This will enable us to store our secret state data in Vault and make those secrets available to our K3s resources. Vault is an enterprise level secrets manager configurable for high availability which integrates with Kubernetes and many CI toolsets. In the previous two posts journaling the evolution of this site’s delivery, we have been managing a single secret, the Cloudflared tunnel token.