We are starting to look into potentially using HCP Vault, but I was quite discouraged by the pricing.
If I understand it correctly, the additional $0.158/h (~$113/mo) is per each individually authenticated entity that did any operation in Vault at any point during the billing month.
We are running a microservices setup, with plenty of small binaries doing various things. Each service runs with a dedicated Kubernetes SA, which would identify it as a “client in Vault”. With 100+ microservices, that’s 10K a month, which seems quite wild to me.
Is there anything I am misunderstanding here, or a better way to architect Vault access I am missing ? Or is this just what it takes to have managed Vault ?