The logs were lighting up with failed requests. The cluster was healthy. The pods were ready. The problem was clear: the ingress wasn’t routing the way it should.
Setting up ingress resources in a self-hosted instance isn’t complicated if you understand the flow. But getting it right is critical. An Ingress Resource is the Kubernetes object that defines how external traffic reaches services inside your cluster. In a self-hosted instance, you control the environment end-to-end. This means you choose the ingress controller, configure TLS termination, manage rewrite rules, and handle routing paths without relying on cloud defaults.
First, the ingress controller. For most self-hosted setups, NGINX or Traefik are standard. Install via Helm or manifests, expose the controller with a NodePort or LoadBalancer service, then bind it to your domain. Without an active controller, your ingress resources are inert.
Next, define the ingress resource YAML. Each rule should match a host and path. Use annotations to fine-tune behavior: force HTTPS, set proxy buffer sizes, or define custom error pages. For TLS, generate certificates via cert-manager or bring your own. Ensure the secret names match your ingress spec exactly; mismatches will silently break HTTPS.