docker network¶

用法:

Usage:  docker network COMMAND

Manage networks

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

使用:

// 创建时指定网段：172.18.0.0/16
$ docker network create --subnet=172.18.0.0/16 mynetwork

$ docker network inspect mynetwork

// Docker网络允许您将容器附加到任意数量的网络。
// 您还可以附加已在运行的容器。继续并将正在运行的web应用程序附加到tinywan_bridge
$ docker network connect mynetwork web

实例:

// 1. 创建网络
$ docker network create test-network
// 2. 启动容器时，加入创建的网络
$ docker run -it --network test-network --network-alias mysqlhost -e MYSQL_ROOT_PASSWORD=123 mysql:5.7
// 3. 启动被链接的容器
$ docker run -it --network test-network --network-alias centoshost  centos /bin/bash
centos> ping mysqlhost    // 可以直接用上面指定的network-alias
centos> mysql -h mysqlhost -uroot -p123

create命令:

$ docker network create -d bridge my-net
-d 参数指定 Docker 网络类型，有 bridge overlay

inspect命令:

$ docker network inspect bridge
[{
    "Name": "bridge",
    "Id": "93196df71406f690bf83ba65d7556 a4ba9fae676b828e578c53832f8b59608ef",
    "Created": "2019-05-30T07:42:54.43279813+05:30",
    "Scope": "local",
    "Driver": "bridge",
    "EnableIPv6": false,
    "IPAM": {
        "Driver": "default",
        "Options": null,
        "Config": [{
            "Subnet": "172.17.0.0/16",
            "Gateway": "172.17.0.1"
        }]
    },
                    // Removed for Brevity
}]