Ten light containers can consume less than one heavy database container. Size Docker VPS from CPU, memory, disk IO, persistent volumes and network flow rather than container count.
A reverse proxy plus a few light services can start around 2–4 GB. Databases, n8n, Redis, workers or builds can push demand to 6–16 GB or more. `docker stats` is the practical way to measure real usage.
Reverse proxy exposes 80/443 while app, DB and cache containers remain private.
Service type explains why the same container count can behave differently.
Monitor container state, resource usage and disk consumption together.
docker compose psdocker stats --no-streamdocker system dfdocker compose logs --tail=100df -hExposing Docker socket or database ports publicly creates serious risk.
It can be for a few light services, but databases, n8n or builds can exhaust it quickly.
No. Private Docker networks and a reverse proxy can publish many services through one public IP.
Yes for persistent data. Images can be pulled again, but persistent data cannot be recreated automatically.
Share containers, database, volume size and traffic; we can plan CPU, memory and NVMe.