Terraform IAC for creating k8s cluster

• terraform init

• terraform apply

Ingress Controller setup ( if not done already )

• helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx

• helm repo update ingress-nginx

• helm install nginx-ingress ingress-nginx/ingress-nginx

• kubectl delete -A ValidatingWebhookConfiguration nginx-ingress-ingress-nginx-admission

Update DNS

• kubectl get svc

  NAME                                       TYPE           CLUSTER-IP    EXTERNAL-IP
  nginx-ingress-ingress-nginx-controller     LoadBalancer   10.52.0.17    35.239.122.122
  

• Get the public ip address and update dns for the hosts in your ingress

Kcert Setup

• kubectl create -f kcert/kcert.yml

Kcert Check

• kubectl get all -n kcert

  NAME                        READY   STATUS    RESTARTS   AGE
  pod/kcert-6ffbb9bf9-47979   1/1     Running   0          15h
  
  NAME            TYPE        CLUSTER-IP   EXTERNAL-IP   PORT(S)           AGE
  service/kcert   ClusterIP   10.52.12.2   <none>        80/TCP,8080/TCP   15h
  
  NAME                    READY   UP-TO-DATE   AVAILABLE   AGE
  deployment.apps/kcert   1/1     1            1           15h
  
  NAME                              DESIRED   CURRENT   READY   AGE
  replicaset.apps/kcert-6ffbb9bf9   1         1         1       15h
  

Create ingress

• kubectl create -f app/app.yaml

• kubectl create -f app/kcert-demo.yaml

• kubectl get secrets -A

  NAME                     TYPE                  
  kcert-agileguru-org      kubernetes.io/tls
  

Check Your app

• Open Your App in the browser ( https://kcert.agileguru.org )
• Should show valid certificate :)
• Certificate issued by https://letsencrypt.org/