A bare VPS is cheap; operating it without a layer you trust is expensive. These are the tools I reach for when Docker, SSL, and deploys need to stay boring.
Portainer — Docker UI that every team understands
Portainer gives you stacks, containers, volumes, and registry auth in a UI that ops and developers both tolerate. I use it when the server already runs Docker Compose or Swarm and you only need visibility plus occasional restarts — not a full PaaS.
- Best for: existing Compose files, multi-container apps, quick env var edits
- Weak spot: not a git-push deploy platform — you still wire CI or scripts
- Tip: enable RBAC if clients get viewer access; never share the admin password
Coolify — self-hosted Vercel/Heroku on your VPS
Coolify is my default when a founder wants one server, automatic SSL, Git deploys, and preview URLs without Kubernetes. It wraps Traefik, manages domains, and supports Nuxt, Node, static sites, and databases with sensible defaults.
CapRover — CLI-first PaaS with a smaller footprint
CapRover runs a captain container and one-click apps (Postgres, Redis, etc.). Deploys are `caprover deploy` or GitHub hooks. It is lighter than Coolify in spirit but the UI feels older — still solid for side projects and agencies running many small apps on one box.
- Strength: simple app definitions (captain-definition file)
- Strength: built-in Let's Encrypt + custom domains
- Trade-off: less polish than Coolify for non-technical handoff
aaPanel / BT Panel — when the stack is LAMP, not containers
aaPanel (and similar “BT” panels) shine for WordPress, PHP, and classic Nginx/Apache sites. You get file manager, cron, backups, and one-click PHP versions. I do not use it for greenfield Docker SaaS — I use it when the client already lives in PHP or needs cPanel-like comfort on a Chinese-friendly panel.
Quick comparison
- Docker-only visibility → Portainer
- Git-push Nuxt/Node SaaS → Coolify (or CapRover)
- Many tiny client sites, CLI OK → CapRover
- WordPress / PHP legacy → aaPanel
- Kubernetes later → none of these; use a managed cluster
The best VPS tool is the one your client can reboot without calling you at midnight.