创建新容器后,是否可以运行命令从主机获取容器的IP地址?

基本上,一旦Docker创建了容器,我就想滚动我自己的代码部署和容器配置脚本。


当前回答

要获取容器的IP地址和主机端口,请执行以下操作:

docker inspect containerId | awk '/IPAddress/ || /HostPort/'

输出:

    "HostPort": "4200"
                    "HostPort": "4200"
        "SecondaryIPAddresses": null,
        "IPAddress": "172.17.0.2",
                "IPAddress": "172.17.0.2",

其他回答

接受的答案对于每个容器的多个网络不适用:

> docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' cc54d96d63ea

172.20.0.4172.18.0.5

下一个最佳答案更接近:

> docker inspect cc54d96d63ea | grep "IPAddress"

"SecondaryIPAddresses": null,
"IPAddress": "",
    "IPAddress": "172.20.0.4",
    "IPAddress": "172.18.0.5",

我喜欢使用jq解析网络JSON:

> docker inspect cc54d96d63ea | jq -r 'map(.NetworkSettings.Networks) []'

{
  "proxy": {
    "IPAMConfig": null,
    "Links": [
      "server1_php_1:php",
      "server1_php_1:php_1",
      "server1_php_1:server1_php_1"
    ],
    "Aliases": [
      "cc54d96d63ea",
      "web"
    ],
    "NetworkID": "7779959d7383e9cef09c970c38c24a1a6ff44695178d314e3cb646bfa30d9935",
    "EndpointID": "4ac2c26113bf10715048579dd77304008904186d9679cdbc8fcea65eee0bf13b",
    "Gateway": "172.20.0.1",
    "IPAddress": "172.20.0.4",
    "IPPrefixLen": 24,
    "IPv6Gateway": "",
    "GlobalIPv6Address": "",
    "GlobalIPv6PrefixLen": 0,
    "MacAddress": "02:42:ac:14:00:04",
    "DriverOpts": null
  },
  "webservers": {
    "IPAMConfig": null,
    "Links": [
      "server1_php_1:php",
      "server1_php_1:php_1",
      "server1_php_1:server1_php_1"
    ],
    "Aliases": [
      "cc54d96d63ea",
      "web"
    ],
    "NetworkID": "907a7fba8816cd0ad89b7f5603bbc91122a2dd99902b504be6af16427c11a0a6",
    "EndpointID": "7febabe380d040b96b4e795417ba0954a103ac3fd37e9f6110189d9de92fbdae",
    "Gateway": "172.18.0.1",
    "IPAddress": "172.18.0.5",
    "IPPrefixLen": 24,
    "IPv6Gateway": "",
    "GlobalIPv6Address": "",
    "GlobalIPv6PrefixLen": 0,
    "MacAddress": "02:42:ac:12:00:05",
    "DriverOpts": null
  }
}

要列出每个容器的IP地址,则变成:

for s in `docker ps -q`; do
  echo `docker inspect -f "{{.Name}}" ${s}`:
  docker inspect ${s} | jq -r 'map(.NetworkSettings.Networks) []' | grep "IPAddress";
done

/server1_web_1:
    "IPAddress": "172.20.0.4",
    "IPAddress": "172.18.0.5",
/server1_php_1:
    "IPAddress": "172.20.0.3",
    "IPAddress": "172.18.0.4",
/docker-gen:
    "IPAddress": "172.18.0.3",
/nginx-proxy:
    "IPAddress": "172.20.0.2",
    "IPAddress": "172.18.0.2",

我用这个简单的方法

docker exec -it <container id or name> hostname -i

e.g

ubuntu@myhost:~$ docker exec -it 3d618ac670fe hostname -i
10.0.1.5

使用Python新API:

import docker

client = docker.DockerClient()
container = client.containers.get("NAME")
ip_add = container.attrs['NetworkSettings']['IPAddress']
print(ip_add)

我编写了以下Bash脚本,以从docker compose下运行的所有容器中获取IP地址表。

function docker_container_names() {
    docker ps -a --format "{{.Names}}" | xargs
}

# Get the IP address of a particular container
dip() {
    local network
    network='YOUR-NETWORK-HERE'
    docker inspect --format "{{ .NetworkSettings.Networks.$network.IPAddress }}" "$@"
}

dipall() {
    for container_name in $(docker_container_names);
    do
        local container_ip=$(dip $container_name)
        if [[ -n "$container_ip" ]]; then
            echo $(dip $container_name) " $container_name"
        fi
    done | sort -t . -k 3,3n -k 4,4n
}

您应该将变量网络更改为自己的网络名称。

Linux容器

.方法1

 docker exec postgres ifconfig

.方法2

  docker exec postgres cat /etc/hosts

.方法3

码头管理人员

.方法4

使用Powershell

docker inspect postgres | select-string 'ipaddress'