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                [TOC] # 自定義網絡 ## 前言 在 Docker 中啟動多個容器,容器要實現相互通訊,比如博客后端要和數據庫容器通信,這個時候就可以采用容器之間的通訊方式解決。 首先刪除所有的容器,啟動 app1 和 app2 容器 ``` docker rm -f $(docker ps -aq) ``` 然后啟動測試容器app1和app2 ``` docker run -d -p 88:80 --name app1 nginx docker run -d -p 90:80 --name app2 nginx ``` ## 通訊方式一:外部端口訪問 ``` docker exec -it app1 bash curl http://xxx.xxx.xxx.xxx:90 ``` ## 通訊方式二:docker0(容器默認網絡) ``` 退出,查看ip值 ip a 查看容器的詳細信息(查看IPAddress) docker container inspect app1 docker container inspect app2 進入app1 docker exec -it app1 bash 根據app2的IP地址訪問app2 curl http://172.17.0.3:80 ``` ## 通訊方式三:創建自定義網絡訪問 ``` 創建自定義網絡 docker network create mynet 啟動容器 docker run -d -p 88:80 --name app1 --network mynet nginx docker run -d -p 90:80 --name app2 --network mynet nginx 進入app1 docker exec -it app1 bash 根據容器app2的名字訪問app2 curl http://app2:80 ```
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