Using vault for getting Redis password

im using redis as the storage adapter. my redis cluster requires authentication with a password that is sorted in vault, as the setting of the storage adapter is done in the block `init_by_lua_block` i had issues to make an http request to get the key from vault and i dont see there is a client for vault.

any suggestion on where or how to get the redis password in order to set the storage adapter in the `init_by_lua_block`

Start with the storage adapter configuration in the `init_by_lua_block` mentioned in the issue, then trace how Redis authentication is configured. Determine whether the project exposes a supported way to obtain a Vault-managed password there; done means a documented or implemented path for configuring the authenticated Redis adapter.

Written by the indexing model from the issue text.