k8s-负载均衡

nginx #yml文件 [root@master haproxy]# cat nginx.yml apiVersion: apps/v1 kind: Deployment metadata: name: nginx1 labels: app: nginx1 namespace: default spec: replicas: 1 selector: matchLabels: app: nginx

早川语

1667人浏览 · 2021-12-22 13:05:40

早川语 · 2021-12-22 13:05:40 发布

nginx

#yml文件
[root@master haproxy]# cat nginx.yml 
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx1
  labels:
    app: nginx1
  namespace: default
spec:
  replicas: 1
  selector:
    matchLabels:
      app: nginx1
  template:
    metadata:
      labels:
        app: nginx1 
    spec:
      containers:
      - image: best2001/nginx:v0.3 
        imagePullPolicy: Always
        name: nginx1

---
apiVersion: v1
kind: Service
metadata:
  name: nginx1
  labels: 
    app: nginx1
spec:
  ports:
  - port: 80
    targetPort: 80
  selector:
    app: nginx1
  clusterIP: 10.97.0.50
  
#创建
[root@master haproxy]# kubectl create -f nginx.yml 
deployment.apps/nginx1 created
service/nginx1 created

#查看
[root@master haproxy]# kubectl get pod,svc
NAME                          READY   STATUS    RESTARTS   AGE
pod/nginx1-7cf8bc594f-t5btg   1/1     Running   0          26s

NAME                 TYPE        CLUSTER-IP   EXTERNAL-IP   PORT(S)   AGE
service/kubernetes   ClusterIP   10.96.0.1    <none>        443/TCP   74m
service/nginx1       ClusterIP   10.97.0.50   <none>        80/TCP    26s

apache

#yml文件
[root@master haproxy]# cat apache1.yml 
apiVersion: apps/v1
kind: Deployment
metadata:
  name: httpd1
  labels:
    app: httpd1
  namespace: default
spec:
  replicas: 1
  selector:
    matchLabels:
      app: httpd1
  template:
    metadata:
      labels:
        app: httpd1 
    spec:
      containers:
      - image: best2001/httpd
        imagePullPolicy: Always
        name: httpd1

---
apiVersion: v1
kind: Service
metadata:
  name: httpd1
  labels: 
    app: httpd1
spec:
  ports:
  - port: 80
    targetPort: 80
  selector:
    app: httpd1
  clusterIP: 10.97.0.10
  
#创建
[root@master haproxy]# kubectl create -f apache1.yml 
deployment.apps/httpd1 created
service/httpd1 created

#查看
[root@master haproxy]# kubectl get pod,svc
NAME                          READY   STATUS    RESTARTS   AGE
pod/httpd1-57c7b6f7cb-sk86h   1/1     Running   0          28s
pod/nginx1-7cf8bc594f-t5btg   1/1     Running   0          112s

NAME                 TYPE        CLUSTER-IP   EXTERNAL-IP   PORT(S)   AGE
service/httpd1       ClusterIP   10.97.0.10   <none>        80/TCP    28s
service/kubernetes   ClusterIP   10.96.0.1    <none>        443/TCP   75m
service/nginx1       ClusterIP   10.97.0.50   <none>        80/TCP    112s

haproxy

#yml文件
[root@master haproxy]# cat haproxy.yml 
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: haproxy
  namespace: default
spec: 
  replicas: 1
  selector:
    matchLabels:
      app: haproxy
  template:
    metadata:
      labels:
        app: haproxy
    spec:
      containers:
      - image: best2001/haproxy:v3.0
        imagePullPolicy: Always
        env: 
        - name: RSs
          value: "10.97.0.10 10.97.0.50"
        name: haproxy
        ports:
        - containerPort: 80
          hostPort: 80
---
apiVersion: v1
kind: Service
metadata:
  name: haproxy
  namespace: default
spec:
  ports:
  - port: 80
    protocol: TCP
    targetPort: 80
  selector:
    app: haproxy
  type: NodePort
  
#创建
[root@master haproxy]# kubectl create -f haproxy.yml 
deployment.apps/haproxy created
service/haproxy created

#查看是否创建成功
[root@master haproxy]# kubectl get pod,svc
NAME                           READY   STATUS    RESTARTS   AGE
pod/haproxy-7565dc6587-h8sdg   1/1     Running   0          18s
pod/httpd1-57c7b6f7cb-sk86h    1/1     Running   0          81s
pod/nginx1-7cf8bc594f-t5btg    1/1     Running   0          2m45s

NAME                 TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)        AGE
service/haproxy      NodePort    10.99.52.161   <none>        80:31884/TCP   18s
service/httpd1       ClusterIP   10.97.0.10     <none>        80/TCP         81s
service/kubernetes   ClusterIP   10.96.0.1      <none>        443/TCP        76m
service/nginx1       ClusterIP   10.97.0.50     <none>        80/TCP         2m45s

访问

[root@master haproxy]# curl 192.168.240.30:31884
<html><body><h1>It works!</h1></body></html>

[root@master haproxy]# curl 192.168.240.30:31884
<!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>

K8S/Kubernetes

K8S/Kubernetes社区为您提供最前沿的新闻资讯和知识内容

更多推荐

【深度】阿里巴巴万级规模 K8s 集群全局高可用体系之美

作者 | 韩堂、柘远、沉醉来源 | 阿里巴巴云原生公众号前言台湾作家林清玄在接受记者采访的时候，如此评价自己 30 多年写作生涯：“第一个十年我才华横溢，‘贼光闪现’，令周边黯然失色；第二个十年，我终于‘宝光现形’，不再去抢风头，反而与身边的美丽相得益彰；进入第三个十年，繁华落尽见真醇，我进入了‘醇光初现’的阶段，真正体味到了境界之美”。长夜有穷，真水无香。领略过了 K8s“身在江

K8S/Kubernetes

如何基于 K8s 构建下一代 DevOps 平台？

作者 | 孙健波（天元）导读：当前云原生 DevOps 体系现状如何？面临哪些挑战？如何通过 OAM 解决云原生 DevOps 场景下的诸多问题？云原生开发应用模型 OAM(Open Application Model) 社区核心成员孙健波将为大家一一解答，并分享如何基于 OAM 和 Kubernetes 打造无限能力的下一代 DevOps 平台。什么是 DevOps？为什么基于 Kub