Kubernetes Learning

Environment preparation

• install kubectl and minikube
  https://kubernetes.io/docs/tasks/tools/install-minikube/

• Info url
  https://kubernetes.io/docs/home/
  https://github.com/kubernetes/minikube
  https://yq.aliyun.com/articles/221687

Start the environment

start minikube

You can choose what type of virtual machine will be used. Candidate have xhyve, virtualbox, hyperkit and so on.

• start minikube

    minikube start --vm-driver=xhyve --registry-mirror=https://registry.docker-cn.com  
  

• start minikube with specified proxy info

    minikube start --vm-driver=xhyve --docker-env HTTP_PROXY=socks5://127.0.0.1:1086  --docker-env HTTPS_PROXY=socks5://127.0.0.1:1086 
  

start the dashboard

minikube dashboard

start the API server

kubectl proxy --port=8888

start a service

• Start a app

    kubectl run nginx-test --image=nginx --port=80
  

• start a service

    kubectl expose deployment nginx-test --type="NodePort" --port 8080
  

• visit the service

    curl $(minikube service nginx-test --url)
  

start a ingress for the service

• start ingress for minikube as addons

    minikube addons enable ingress
  

• define a ingress

create a nginx-test-ingress.yml file with following content.

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: nginx-test-ingress
  # following annotation may not necessary.
  annotations:
    ingress.kubernetes.io/rewrite-target: / 
spec:
  backend:
    serviceName: nginx-test
    servicePort: 80
  rules:
  - host: nginx-test.com
    http:
      paths:
      - path: /
        backend:
          serviceName: nginx-test
          servicePort: 80

• create a ingress

    kubectl create -f `nginx-test-ingress.yml`
  

• check the ingress config

    kubectl describe ing nginx-test-ingress
  

• append the domain into /etc/hosts

• visit the pod through domain

    curl nginx-test.com:80