We are looking to deploy Vault on-prem and will be using the Transit Engine (as described here: Auto-unseal using Transit Secrets Engine | Vault - HashiCorp Learn) for auto-unsealing.
The article how references the Transit Engine node (Vault 1) as a single instance. Is it possible to deploy this in HA, i.e. 2 (or multiple) instances of the Transit Engine and is there documentation that describes how to achieve this?
We would want to avoid a situation where the Transit Engine node goes down and the Vault instance that needs unsealing is unable to as a result.
I have already this High Availability | Vault by HashiCorp