A modern system requires access to a multitude of secrets: database
credentials, API keys for external services, credentials for service-oriented
architecture communication, etc. Understanding who is accessing what secrets
is already very difficult and platform-specific. Adding on key rolling,
secure storage, and detailed audit logs is almost impossible without a custom
solution. This is where Vault steps in.
The packages for RHEL 8 and RHEL 7 are in each distribution’s respective Extra Packages for Enterprise Linux (EPEL) repository. The instructions for adding this repository diverge slightly between RHEL 8 and RHEL 7, which is why they’re listed separately below.
The EPEL repository can be added to RHEL 8 with the following command: