使用 Docker Kubernetes 集群获取 URL 并在没有 Minikube 集群的情况下访问正在运行的服务

Question

I'm running my Kubernetes Cluster using Docker and not using Minikube Cluster (requires a lot of memory) however after applying the required files, I can't get an external URL (like I used to have when I used Minikube) to run it in my Chrome browser.

Consider the followings:

The Pod:

apiVersion: v1
kind: Pod
metadata:
  name: webapp-release-0-5
  labels:
    app: webapp
    release: "0-5"
spec:
  containers:
  - name: webapp
    image: richardchesterwood/k8s-fleetman-webapp-angular:release0-5

And its Service:

apiVersion: v1
kind: Service
metadata:
  name: fleetman-webapp

spec:
  # This defines which pods are going to be represented by this Service
  # The service becomes a network endpoint for either other services
  # or maybe external users to connect to (eg browser)
  selector:
    app: webapp
    release: "0-5"

  ports:
    - name: http
      port: 80
      nodePort: 30080

  type: NodePort

After applying both from Command line (WINDOWS 10 CLI):

>>> kubectl get services
fleetman-webapp        NodePort    10.96.227.189    <none>        80:30080/TCP        5m57s

>>> kubectl get po

webapp                                   1/1     Running   0          12m
webapp-release-0-5                       1/1     Running   0          12m

However, I don't have an external URL of this POD to put in my browser to check out the App, like I used to have in Minikube.

How can we generate such URL?

Answer 1

It's particularly hard to make it work in a bespoke way. I would suggest to use kind which creates kubernetes nodes as docker container. You can access NodePort service via http://<NODEIP>:<NODEPORT> . To get NODEIP use kubectl get nodes