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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                [TOC] ## 使用k8s部署第一個應用 創建一個nginx.yaml文件 ``` apiVersion: v1 kind: Pod metadata: name: nginx # 指定 label,便于檢索 labels: app: nginx spec: containers: - name: nginx # 指定鏡像 image: nginx:alpine # 指定暴露端口 ports: - containerPort: 80 --- # 創建網絡服務 apiVersion: v1 kind: Service metadata: name: kube-node-service labels: name: kube-node-service spec: type: NodePort #這里代表是NodePort類型的 ports: - port: 80 #這里的端口和clusterIP(10.97.114.36)對應,即10.97.114.36:80,供內部訪問。 targetPort: 80 #端口一定要和container暴露出來的端口對應,nodejs暴露出來的端口是8081,所以這里也應是8081 protocol: TCP nodePort: 32143 # 所有的節點都會開放此端口,此端口供外部調用。 selector: app: nginx #這里選擇器一定要選擇容器的標簽,之前寫name:kube-node是錯的。 ``` 執行指令: ``` sudo kubectl create -f nginx.yaml ``` 查看 服務 ``` sudo kubectl get service ``` 查看 pod ``` sudo kubectl get pod ``` 訪問: ``` ip:32143 ``` 就可以看到ngixn的歡迎頁面啦 ## 同一個service開啟多個端口 一般我們只有一個端口的時候,在service的yaml文件: ``` ports: - nodePort: 8482 port: 8080 protocol: TCP targetPort: 8080 ``` 而如果你想開兩個端口,直接復制粘貼可不行,k8s會提示你必須要加上name。所以,如果要開多端口,要為每個port都指定一個name,如: ``` ports: - name: http nodePort: 8482 port: 8080 protocol: TCP targetPort: 8080 ```
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