Centos7.x 安装Kubernetes(K8s) 1.14.3 nginx 部署 案例
以 nginx 部署为例Kubernetes 创建 ReplicationControllerfox.风nginx-rc.ymlapiVersion: v1kind: ReplicationControllermetadata:name: nginxspec:replicas: 2selector:name: nginxtemplate:m...
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以 nginx 部署为例
Kubernetes 创建 ReplicationController
fox.风
nginx-rc.yml
apiVersion: v1
kind: ReplicationController
metadata:
name: nginx
spec:
replicas: 2
selector:
name: nginx
template:
metadata:
labels:
name: nginx
spec:
containers:
- name: nginx
image: nginx:latest
ports:
- containerPort: 80
Kubernetes 创建 Service
nginx-service.yml
apiVersion: v1
kind: Service
metadata:
name: nginx-service
spec:
type: NodePort
ports:
- port: 80
targetPort: 80
protocol: TCP
nodePort: 80
selector:
name: nginx
执行生成 pod 和 service
kubectl create -f nginx-rc.yaml
kubectl create -f nginx-service.yml
查看 pod
kubectl get pods
输出
NAME READY STATUS RESTARTS AGE
nginx-b6vst 0/1 ContainerCreating 0 9s
nginx-g56xt 0/1 ContainerCreating 0 9s
ContainerCreating
表示 正在拉取镜像创建中
如果出现 Running
表示 已经拉取完成,镜像 pod 创建完成,运行了
NAME READY STATUS RESTARTS AGE
nginx-b6vst 1/1 Running 0 2m30s
nginx-g56xt 1/1 Running 0 2m30s
查看 svc
kubectl get svc
输出
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
kubernetes ClusterIP 10.1.0.1 <none> 443/TCP 11h
nginx-service NodePort 10.1.103.154 <none> 80:80/TCP 4s
redis NodePort 10.1.226.26 <none> 6379:6379/TCP 5h36m
表示创建完成,可以用浏览器直接访问了
浏览器 直接 输入 宿主机IP (我的宿主机IP是 192.168.0.254),那么 浏览器中直接打开http://192.168.0.254
如图
可以用命令行输出查看
curl 127.0.0.1
或
curl 192.168.0.254
输出
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
body {
width: 35em;
margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif;
}
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>
<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>
<p><em>Thank you for using nginx.</em></p>
</body>
</html>
FAQ
删除刚生成的 pod 和 service
kubectl delete -f nginx-rc.yaml
kubectl delete -f nginx-service.yml
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