4
PM2 services on the node: API, tunnel, Nginx, maintenance
ca3lum.cloud
Our factoryof edge.
Caelum is an independent compute node. ARM64, Cloudflare tunnel, object storage and APIs, in one interconnected cluster.
ARM64
One node. Full stack. Global edge through Cloudflare.
The build
We go further, faster
Internet, Cloudflare, tunnel, Nginx and the Node API. No showroom datacenter. One ARM64 with 3.6 GB, Ubuntu via proot, PM2, and a complete edge stack.
- Internet
- Cloudflare
- Tunnel
- Nginx
- Node API
By the numbers
Honest scale
Four PM2 services, one HTTP/2 tunnel, bucket storage and a live dashboard. Compute that fits, not a slide.
3.6GB
RAM on ARM64, with a watchdog and auto restart
24
Node.js on the Express API runtime
12h
Admin session with HMAC and an httpOnly cookie
Stack
What runs on Caelum
API
Express on port 3000. Health, auth, system, buckets and objects.
Tunnel
Cloudflare Tunnel over HTTP/2. No public port on the device.
Nginx
Reverse proxy, gzip, rate limits and security headers.
Storage
S3-style buckets, CORS per site, serving with edge cache.
Path
From request to process
- EdgeDNS, SSL and cache on Cloudflare.
- TunnelHTTP/2 into Nginx on 8080.
- APINode on 3000, 12 h HMAC session.
- WatchdogMaintenance restarts what falls over.