Pending T2040, I'm upgrading Vault to last version, v2.1.0.
The OpenBao migration should be done with a refresh of the PKI, so for now, we're still using Vault, and when automation for the PKI is ready, we can consider to migrate to OpenBao.
(for more information about our migration from BSL software to open-source software forks, see T1938)
Plan:
- backup Raft storage
- migrate to 1.21.4, the last 1.x version
- migrate to 2.1.0
Rollback:
- downgrade to 1.15.4, the current version
- restore Raft storage