Vault setup on kubernetes using operator & migrating data from one vault to another

[maxb]

You might find this post of use, in which I explored the issue of needing a pod where Vault is not running in more detail, in response to a previous related question:

Vault backend migration from Consul to Raft (K8S, Helm, KMS auto-unseal)

I have not done this before, but your question is interesting to me, as I think I might need to do something similar in the future… As you have noticed, whilst Helm & Kubernetes make the initial deployment quite easy, complex operations thereafter can be made harder… First, I tried helm upgrade from a Consul-storage deployment to a Raft-storage deployment, just to see what would happen… Error: UPGRADE FAILED: cannot patch "vault" with kind StatefulSet: StatefulSet.apps "vault" is invalid: spe…