【K8S】用minikube start 建立K8S集群--20220901

minikube安装—https://minikube.sigs.k8s.io/docs/start/
minikube安装好慢—https://blog.csdn.net/u010953609/article/details/121536434

1.安装

To install the latest minikube stable release on x86-64 Linux using binary download:

curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
sudo install minikube-linux-amd64 /usr/local/bin/minikube
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2.启动您的集群

每次都要拉镜像来启动minikube

minikube start
minikube start --image-mirror-country=cn
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3.与您的集群交互

您还可以通过将以下内容添加到您的 shell 配置中来使您的生活更轻松：

alias kubectl="minikube kubectl --"
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获取所有pod

minikube kubectl -- get po -A
kubectl get pods -A
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登录minikube dashboard

minikube dashboard

season@ZHS-190213650:~$ minikube dashboard
🔌  Enabling dashboard ...
    ▪ Using image registry.cn-hangzhou.aliyuncs.com/google_containers/dashboard:v2.6.0
    ▪ Using image registry.cn-hangzhou.aliyuncs.com/google_containers/metrics-scraper:v1.0.8
🤔  Verifying dashboard health ...
🚀  Launching proxy ...
🤔  Verifying proxy health ...
🎉  Opening http://127.0.0.1:40649/api/v1/namespaces/kubernetes-dashboard/services/http:kubernetes-dashboard:/proxy/ in your default browser...
👉  http://127.0.0.1:40649/api/v1/namespaces/kubernetes-dashboard/services/http:kubernetes-dashboard:/proxy/
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4.部署应用程序

创建一个示例部署并在端口 8080 上公开它：

kubectl create deployment hello-minikube --image=k8s.gcr.io/echoserver:1.4
kubectl expose deployment hello-minikube --type=NodePort --port=8080
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这可能需要一点时间，但是当您运行时，您的部署将很快出现：

kubectl get services hello-minikube
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访问此服务的最简单方法是让 minikube 为您启动 Web 浏览器：

minikube service hello-minikube
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或者，使用 kubectl 转发端口：

kubectl port-forward service/hello-minikube 7080:8080
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您的应用程序现在可以在http://localhost:7080/获得。您应该能够在应用程序输出中看到来自 nginx 的请求元数据，例如CLIENT VALUES。

负载均衡器部署

要访问 LoadBalancer 部署，请使用“minikube tunnel”命令。这是一个示例部署：

kubectl create deployment balanced --image=k8s.gcr.io/echoserver:1.4  
kubectl expose deployment balanced --type=LoadBalancer --port=8080
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在另一个窗口中，启动隧道以为“平衡”部署创建可路由 IP：

minikube tunnel
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要查找可路由 IP，请运行此命令并检查该EXTERNAL-IP列：

kubectl get services balanced
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您的部署现在在 < EXTERNAL-IP >:8080 可用

season@ZHS-190213650:~$ kubectl create deployment balanced --image=k8s.gcr.io/echoserver:1.4
deployment.apps/balanced created
season@ZHS-190213650:~$ kubectl expose deployment balanced --type=LoadBalancer --port=8080
service/balanced exposed
season@ZHS-190213650:~$ minikube tunnel
✅  Tunnel successfully started

📌  NOTE: Please do not close this terminal as this process must stay alive for the tunnel to be accessible ...

🏃  Starting tunnel for service balanced.
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提前下载镜像，减少timeout报错

minikube cache add redis:alpine

~$ minikube cache add redis:alpine
❗  "minikube cache" will be deprecated in upcoming versions, please switch to "minikube image load"
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