Hardening a $0 Kubernetes Cluster: An SRE Field Guide
A few weeks ago I wrote about building a $0/month enterprise platform on Oracle’s free ARM tier. Twenty-one pods, service mesh, secrets management, AI observability — the whole works, running on a single ARM instance with 24GB of RAM. It worked. Everything was up. The pods were green. I could hit my apps through Traefik and feel smug about paying nothing. But here’s the thing about infrastructure: running is the easy part. The hard part is knowing whether it’s running well — and whether it’ll keep running when something goes sideways at 3 AM. ...