How much RAM does Harbor need?

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

What stack does Harbor run on?

Docker Compose + PostgreSQL + Redis.

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

Development

An open-source container registry with security scanning.

Store and distribute container images privately, with RBAC, replication and vulnerability scanning built in.

A private registry keeps your images (and any secrets baked into them) off public registries and inside your network.

1
Provision a VPS
Pick a Debian/Ubuntu template and get root SSH in about a minute.
2
Install the runtime
Install Docker Compose + PostgreSQL + Redis.
3
Deploy the application
Net what you need from the project’s official source and run it.
4
Put it behind TLS
Reverse-proxy with Nginx and issue a Let’s Encrypt certificate.
5
Add it to your backups
Include the data directory and database in your backup routine before you rely on it.

Give Harbor its own database user with rights only on its own schema.
Reverse-proxy Harbor 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 Harbor patched — most self-hosting incidents are unpatched software.

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

Looking for something else? Popular alternatives include GitLab Registry, Gitea Packages, Zot — browse all app guides.