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| layout | page_title | sidebar_current | description |
|---|---|---|---|
| intro | Vault vs. Consul | vs-other-consul | Comparison between Vault and attempting to store secrets with Consul. |
Vault vs. Consul
Consul is a system for service discovery, monitoring, and configuration that is distributed and highly available. Consul also supports an ACL system to restrict access to keys and service information.
While Consul can be used to store secret information and gate access using ACLs, it is not designed for that purpose. As such, data is not encrypted in transit nor at rest, it does not have pluggable authentication mechanisms, and there is no per-request auditing mechanism.
Vault is designed from the ground up as a secret management solution. As such, it protects secrets in transit and at rest. It provides multiple authentication and audit logging mechanisms. Dynamic secret generation allows Vault to avoid providing clients with root privileges to underlying systems and makes it possible to do key rolling and revocation.
The strength of Consul is that it is fault tolerant and highly scalable. By using Consul as a backend to Vault, you get the best of both. Consul is used for durable storage of encrypted data at rest and provides coordination so that Vault can be highly available and fault tolerant. Vault provides the higher level policy management, secret leasing, audit logging, and automatic revocation.