CODEWITHSUNDEEP
ubuntukubernetesdnsvirtual-machine
PedroG
PedroG

Reputation: 43

Access NodePort service through different URL

I have a webapp deployed on Kubernetes running on a VM and I can access it on my PC through http://node-ip1:31000.

However, I want to add a second VM, also running that app, which will have its own IP and be accessed by http://node-ip2:31000. But it doesn't make much sense that we have to access an app through another IP if one fails, is there an easy way to map the NodePort to a URL like http://my-app? I know it can be done with a DNS server but I don't know how or if it's the easiest way.

Upvotes: 0

Views: 408

Answers (1)

Adiii
Adiii

Reputation: 60046

I know it can be done with a DNS server but I don't know how or if it's the easiest way

Node port is not recommended approach to expose; it is hard to manage and it reveals security risks.

So you install ingress, if you are some cloud provider then its that simple

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

and then the ingress for the service which you want to expose, for example nodejs-app

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  annotations:
    kubernetes.io/ingress.class: "nginx"
  name: ingress-nodejs
spec:
  tls:
    - hosts:
        - demoapp.example.com
      secretName: demoapp.example.com.tls
  rules:
    - host: demoapp.example.com
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: nodejs-app
                port:
                  number: 3000

Upvotes: 1

Related Questions