Mac下kubernetes安装及搭建部署单机服务

安装

安装Docker Desktop；

更换阿里源

 

 启用kubernetes

 

 注意事项：

如果Docker Desktop中K8S一直卡在starting状态。

$ git clone https://github.com/AliyunContainerService/k8s-for-docker-desktop.git
$ cd k8s-for-docker-desktop

// 查看版本镜像；替换镜像的版本为你当前使用的版本,如：1.19.3
$ cat images.properties

// 执行脚本安装K8S相关镜像
$ ./load_images.sh

安装完成后重启Docker Desktop即可。

 

 验证K8s

 // 查询有哪些集群：
 $ kubectl config get-contexts
   CURRENT   NAME             CLUSTER          AUTHINFO         NAMESPACE
   *         docker-desktop   docker-desktop   docker-desktop   

 // 切换k8s的上下文状态到docker-desktop
 $ kubectl config use-context docker-desktop
   Switched to context "docker-desktop".

 // 验证集群状态
 $ kubectl cluster-info
   Kubernetes master is running at https://kubernetes.docker.internal:6443
   KubeDNS is running at https://kubernetes.docker.internal:6443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy
 
 // 查看节点信息
 $ kubectl get nodes
   NAME             STATUS   ROLES    AGE     VERSION
   docker-desktop   Ready    master   5m33s   v1.19.3

K8s控制台安装

// 创建配置文件
$ kubectl create -f kubernetes-dashboard.yaml
  namespace/kubernetes-dashboard created
  serviceaccount/kubernetes-dashboard created
  service/kubernetes-dashboard created
  secret/kubernetes-dashboard-certs created
  secret/kubernetes-dashboard-csrf created
  secret/kubernetes-dashboard-key-holder created
  configmap/kubernetes-dashboard-settings created
  role.rbac.authorization.k8s.io/kubernetes-dashboard created
  clusterrole.rbac.authorization.k8s.io/kubernetes-dashboard created
  rolebinding.rbac.authorization.k8s.io/kubernetes-dashboard created
  clusterrolebinding.rbac.authorization.k8s.io/kubernetes-dashboard created
  deployment.apps/kubernetes-dashboard created
  service/dashboard-metrics-scraper created
  deployment.apps/dashboard-metrics-scraper created

// 检查kubernetes-dashboard的应用状态
$ kubectl get pod -n kubernetes-dashboard
  NAME                                         READY   STATUS    RESTARTS   AGE
  dashboard-metrics-scraper-7b59f7d4df-9xw7l   1/1     Running   0          18s
  kubernetes-dashboard-665f4c5ff-zcgbt         1/1     Running   0          18s

// 开启API Server应用代理
$ kubectl proxy
  Starting to serve on 127.0.0.1:8001

访问地址：http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/#/login

 

 配置访问令牌

TOKEN=$(kubectl -n kube-system describe secret default| awk '$1=="token:"{print $2}')
kubectl config set-credentials docker-for-desktop --token="${TOKEN}"
echo $TOKEN

 

将生成的token输入到仪表盘，登录

 

部署服务

 本示例项目testk8s；Docker镜像已打包创建下，新建testk8s.yaml 配置文件

apiVersion: apps/v1
kind: Deployment
metadata:
  name: testk8s-deployment
spec:
  replicas: 1
  selector:
    matchLabels:
      app: testk8s
  template:
    metadata:
      labels:
        app: testk8s
    spec:
      containers:
        - name: testk8s-controller
          image: testk8s:latest
          imagePullPolicy: IfNotPresent # Alway,IfNotPresent,Never
          ports:
            - containerPort: 8998

---
apiVersion: v1
kind: Service
metadata:
  name: testk8s-service
spec:
  ports:
    - port: 8998
      protocol: TCP
      targetPort: 8998
     nodePort: 30998
  selector:
    app: testk8s
  type: NodePort

// 切换路径到项目下
$ cd /Users/jzpc/IdeaProjects/y_cloud/testK8s

// 部署服务
$ kubectl apply -f testk8s.yaml 
  deployment.apps/testk8s-deployment created
  service/testk8s-service created

仪表盘显示服务如下：