minikube部署

minikube安装

##minikube offical website
https://minikube.sigs.k8s.io
#k8s offical website
https://kubernetes.io/zh/
--download
# Intel x86_64
curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
​
# Apple arm64
curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-arm64
#install
sudo install minikube /usr/local/bin/
#version
minikube version
#install kubectl
minikube kubectl
#start cluster,specify docker as the driver
minikube start --driver=docker --kubernetes-version=v1.23.3 --force
#view cluster status and node list
minikube status
minikube node list
#为命令指定别名
alias kubectl="minikube kubectl --"
#启动一个pod
kubectl run ngx --image=nginx:alpine
#查看插件列表
minikube addons list
#查看dashboard
minikube dashboard
#查看支持的对象
kubectl api-resources
kubectl api-resources 
#查看kubectl底层调用
kubectl get pod --v=9
#查看k8s对象的属性
kubectl explain pod
kubectl explain pod.metadata
kubectl explain pod.spec
kubectl explain pod.spec.containers
#生成一个空的pod的yaml模板，而不真正执行
kubectl run ngx2 --image=nginx:alpine --dry-run=client -o yaml
kubectl run busy --image=busybox:latest --dry-run=client -o yaml
#生成pod之外的模板文件
#创建job
kubectl create job echo-job --image=busybox --dry-run=client -o yaml
#创建cronJob
kubectl create cj echo-cj --image=busybox --schedule="" --dry-run=client -o yaml
#删除pod
kubectl delete po ngx
kubectl delete -f ngx2.yaml
#描述pod详细信息
kubectl describe pod busy-pod
#复制一个文件到pod
kubectl cp a.txt ngx2:/tmp
#在容器执行shell
kubectl exec -it ngx2 -- sh
#创建configmap
kubectl create cm cm_info --dry-run=client -o yaml
#创建secret
kubectl create secret generic user --from-literal=name=root --dry-run=client -o yaml
#生成base64编码
echo -n "123456" | base64

configMap模板

apiVersion: v1
kind: ConfigMap
metadata:
  name: cminfo
data:
  count: '10'
  debug: 'on'
  path: '/etc/systemd'
  greeting:  'say hello to kubernetes'

secret模板

apiVersion: v1
kind: Secret
metadata:
  name: user
data:
  name: cm9vdA==
  pwd: MTIzNDU2
​

pod模板

apiVersion: v1
kind: Pod
metadata:
  labels:
    run: busy
  name: busy
spec:
  containers:
  - image: busybox:latest
    name: busy
    imagePullPolicy: IfNotPresent
    env:
      - name: os
        valueFrom:
          configMapKeyRef:
            name: cminfo
            key: count
      - name: debug
        valueFrom:
          secretKeyRef:
            name: user
            key: pwd
    command:
      - /bin/echo
    args:
      -  "$(os), $(debug)"
  dnsPolicy: ClusterFirst
  restartPolicy: Always
​