**使用已存在的網絡** docker network ls 查下已創建的網絡 ~~~ networks: default: external: name: my-pre-existing-network ~~~ ``` networks: outside: external: true ``` ``` #幫助命令后顯示下面信息 [root@localhost /]# docker network --help Usage: docker network COMMAND Manage networks Options: --help Print usage Commands: connect Connect a container to a network create Create a network disconnect Disconnect a container from a network inspect Display detailed information on one or more networks ls List networks prune Remove all unused networks rm Remove one or more networks Run 'docker network COMMAND --help' for more information on a command. ``` **解釋：** **connect** 將某個容器連接到一個docker網絡 **create** 創建一個docker局域網絡 **disconnect** 將某個容器退出某個局域網絡 **inspect** 顯示某個局域網絡信息 **ls** 顯示所有docker局域網絡 **prune** 刪除所有未引用的docker局域網絡 **rm** 刪除docker網絡 ***** ## **實戰：** 使用`--network`來指定網絡， 使用`--network-alias`來指定網絡別名 ``` #運行redis容器 docker run -itd --name redis --network mynet --network-alias redis -p 6379:6379 redis #運行nginx容器 docker run -d --name nginx -p 80:80 --network mynet --network-alias nginx --privileged=true -v /home/wwwroot:/home/wwwroot -v /home/wwwlogs:/home/wwwlogs nginx ```