本文翻译自：How to get a Docker container's IP address from the host?

Is there a command I can run to get the container's IP address right from the host after a new container is created? 创建新容器后，是否可以运行命令以从主机获取容器的IP地址？

Basically, once Docker creates the container, I want to roll my own code deployment and container configuration scripts. 基本上，一旦Docker创建了容器，我想滚动自己的代码部署和容器配置脚本。

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#1楼

参考：https://stackoom.com/question/19zVR/如何从主机获取Docker容器的IP地址

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#2楼

You can use docker inspect <container id> 您可以使用docker inspect <container id>

Example: 例：

CID=$(docker run -d -p 4321 base nc -lk 4321);
docker inspect $CID

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#3楼

The --format option of inspect comes to the rescue. inspect的--format选项可以解决。

Modern Docker client syntax: 现代Docker客户端语法：

docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' container_name_or_id

Old Docker client syntax: 旧的Docker客户端语法：

docker inspect --format '{{ .NetworkSettings.IPAddress }}' container_name_or_id

These commands will return the Docker container's IP address. 这些命令将返回Docker容器的IP地址。

As mentioned in the comments: if you are on Windows , use double quotes " instead of single quotes ' around the curly braces. 如注释中所述：如果您使用的是Windows ，请在大括号周围使用双引号"而不是单引号' 。

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#4楼

In Docker 1.3+, you can also check it via steps below: 在Docker 1.3+中，您还可以通过以下步骤进行检查：

Enter the running Docker (Linux): 输入正在运行的Docker（Linux）：

docker exec [container-id or container-name] cat /etc/hosts
172.17.0.26 d8bc98fa4088
127.0.0.1   localhost
::1 localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
172.17.0.17 mysql

For windows: 对于Windows：

docker exec [container-id or container-name] ipconfig

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#5楼

Add this shell script in your ~/.bashrc or relevant file: 将此shell脚本添加到~/.bashrc或相关文件中：

docker-ip() {
  docker inspect --format '{{ .NetworkSettings.IPAddress }}' "$@"
}

Then, to get an IP address of a container, simply do this: 然后，要获取容器的IP地址，只需执行以下操作：

docker-ip YOUR_CONTAINER_ID

For the new version of the Docker, please use the following: 对于新版本的Docker，请使用以下命令：

docker-ip() {
        docker inspect --format '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' "$@"
}

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#6楼

为了扩展ko-dos的答案，下面是一个别名，用于列出所有容器名称及其IP地址：

alias docker-ips='docker ps | tail -n +2 | while read -a a; do name=${a[$((${#a[@]}-1))]}; echo -ne "$name\t"; docker inspect $name | grep IPAddress | cut -d \" -f 4; done'