CREATE-KUBERNETES-INGRESS.MD

Create the Kubernetes Ingress for Routing to our Service

Write the Ingress Specification

The ingress.yaml defines the custom domain name for accesing the application through the Ingress and the matching secret for incoming TLS/SSL requests

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: daytrader-web
  annotations:
    kubernetes.io/ingress.allow-http: "false"
    nginx.ingress.kubernetes.io/ssl-passthrough: "true"
spec:
  tls:
  - hosts:
    - web.daytrader.geronimo.apache.org
    secretName: daytrader-web
  rules:
    - host: web.daytrader.geronimo.apache.org
      http: 
        paths:
        - path: /
          backend:
            serviceName: daytrader-web
            servicePort: 443 

Create the Ingress Resource

1. $ kubectl apply -f ingress.yaml

2. $ kubectl get ingress

   NAME	HOSTS	ADDRESS	PORTS	AGE
   daytrader-web	web.daytrader.geronimo.apache.org	xx.xx.xx.xx	80, 443	23h

   Wait for the Ingress service to run; then record the HOSTS and ADDRESS

   a. The HOSTS was specified in the ingress.yaml and must match the Secrets (tls.crt CN)

   b. The ADDRESS is the DNS Name or IP Address to the Ingress resource's load balancer

3. If the Ingress resource failed to start then check the logs on the nginx-ingress-controller-xxxxxxxxx-xxxxx

   $ kubectl -n ingress-nginx get pods

   NAME	READY	STATUS	RESTARTS	AGE
   nginx-ingress-controller-xxxxxxxxx-xxxxx	1/1	Running - 0	1h

   $ kubectl -n ingress-nginx logs nginx-ingress-controller-xxxxxxxxx-xxxxx

   If there are errors in the logs then they should give you a good indication of what went wrong