Possibly the easiest way to run vault is to run it via docker – this way you'll not need to worry about writing and setting configurations. There will simply be 2 different modes of operation that you'll be using with vault – one is their development mode and
Don't keep secrets in files or your code repository. This tutorial is an introduction to storing secrets in a secrets manager using Hashicorp's Vault [https://www.vaultproject.io/]. There are various different secrets managers available, some are available on cloud platforms and others can be run