How much RAM does Authentik need?

Plan on 4 GB for typical use; add headroom if you expect many concurrent users.

What stack does Authentik run on?

Docker Compose (Python, Postgres, Redis).

Yes — size the plan so Authentik plus your other workloads fit in RAM with room to spare.

Security

A modern open-source identity provider.

SSO, OIDC/SAML, MFA and user management with a clean UI and policy engine for your applications.

Authentik gives you an enterprise-style IdP you own, so all your apps share one hardened login.

1
Provision a VPS
Choose a plan with room for your data as well as the app.
2
Install the stack
Install Docker Compose (Python, Postgres, Redis).
3
Deploy the application
Follow the project’s official install guide for your distribution.
4
Enable HTTPS
Serve it on your own domain behind a reverse proxy with a certificate.
5
Back it up
Schedule a database dump plus a copy of any uploaded files to an off-box location.

Give Authentik its own database user with rights only on its own schema.
Reverse-proxy Authentik and terminate TLS at the proxy so certificates are managed in one place.
Take a VPS snapshot before major upgrades so you can roll back cleanly.
Keep Authentik patched — most self-hosting incidents are unpatched software.

How much RAM does Authentik need?: Plan on 4 GB for typical use; add headroom if you expect many concurrent users.
What stack does Authentik run on?: Docker Compose (Python, Postgres, Redis).
Can I run other things on the same VPS?: Yes — size the plan so Authentik plus your other workloads fit in RAM with room to spare.

Looking for something else? Popular alternatives include Keycloak, Authelia, Zitadel — browse all app guides.