100% Free Forever
Uses Oracle Cloud Always Free tier: 4 ARM64 OCPUs, 24GB RAM, 200GB storage, 10TB egress/month.
K3s Kubernetes on Oracle Cloud Free Tier - Complete Guide
Deploy a free Kubernetes cluster on Oracle Cloud with GitOps, automatic TLS, and Gateway API - no credit card required
Why K3s on Oracle Cloud?
Section titled “Why K3s on Oracle Cloud?”Run a production-ready Kubernetes cluster completely free using Oracle Cloud’s Always Free tier. This project provides everything you need: infrastructure as code, GitOps automation, secure secrets management, and automatic HTTPS certificates.
Features
Section titled “Features”GitOps with ArgoCD
Declarative cluster management using the App-of-Apps pattern. Push to Git, ArgoCD deploys.
Gateway API Ingress
Modern Kubernetes ingress with Envoy Gateway. No cloud load balancer needed.
Automatic TLS Certificates
Let’s Encrypt certificates via Cert Manager with Cloudflare DNS validation.
Secure Secrets
OCI Vault integration with External Secrets Operator. No secrets in Git.
Infrastructure as Code
One-command deployment with Terraform. Reproducible and version controlled.
What’s Included
Section titled “What’s Included”| Component | Purpose |
|---|---|
| K3s | Lightweight Kubernetes distribution optimized for ARM64 |
| Terraform | Infrastructure provisioning on OCI |
| ArgoCD | GitOps continuous deployment |
| Envoy Gateway | Gateway API implementation for ingress |
| Cert Manager | Automatic TLS certificate management |
| External DNS | Automatic Cloudflare DNS record management |
| External Secrets | OCI Vault to Kubernetes secret sync |
Quick Links
Section titled “Quick Links” Get Started Prerequisites, installation, and configuration
Architecture Understand how the cluster works
Troubleshooting Solutions to common problems
GitHub Repository Source code and issue tracker