Vault Integration with Kubernetes
Inject Vault secrets into the real TaskFlow backend using Kubernetes auth, sidecar injection, and the CSI provider, with no credentials baked into the image.
Lab Overview
🛠Lab from the Platform Engineering Bootcamp. Used in Week 18. Bootcamp landing page: https://academy.tekanaid.com/bootcamps/platform-engineering-bootcamp Parent course(s):
- Week 18: Secrets Management with HashiCorp Vault (slug: secrets-management-vault)
This lab builds and deploys the real TaskFlow backend (the same app you fork in Week 1) as the pod that Vault injects secrets into, so the patterns carry straight into your project.
Configure the Vault Kubernetes auth method for the TaskFlow backend's ServiceAccount, inject a secret into the running backend with a Vault Agent sidecar, mount it via the CSI provider, prove least-privilege with a live permission-denied test, then run the backend as a Deployment that consumes its injected secret through a debug endpoint.
What You'll Learn
Configure the Vault Kubernetes auth method and bind the TaskFlow backend ServiceAccount to a Vault role
Inject a secret into the running TaskFlow backend and read it from inside the container
Mount Vault secrets as a volume in the backend with the Secrets Store CSI Driver
Write a least-privilege Vault policy and verify a different identity is genuinely denied access
Deliver secrets to the backend Deployment at runtime with no credentials baked into the image
Technologies Covered
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