How to get a Docker container s IP address from the host

Question

Is there a command I can run to get the container s IP address right from the host after a new container is created   Basically  once Docker creates the container  I want to roll my own code deployment and container configuration scripts

User · Answer

docker inspect --format      NetworkSettings Networks mynetwork IPAddress      lt containername or containerID here gt    The above is for windows containers where a network has been set up with a   docker create network mynetwork

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Execute   docker ps -a   This will display active docker images   CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS                       PORTS               NAMES 3b733ae18c1c        parzee database       usr lib postgresql     6 minutes ago       Up 6 minutes                 5432 tcp            serene babbage   Use the CONTAINER ID value   docker inspect  lt CONTAINER ID gt    grep -w  IPAddress    awk    print  2      head -n 1   cut -d     -f1    172 17 0 2

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Just for completeness   I really like the --format option  but at first I wasn t aware of it so I used a simple Python one-liner to get the same result   docker inspect  lt CONTAINER gt   python -c  import json sys obj json load sys stdin  print obj 0   NetworkSettings    IPAddress

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Using Python New API   import docker  client   docker DockerClient   container   client containers get  NAME   ip add   container attrs  NetworkSettings    IPAddress   print ip add

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First get the container ID   docker ps    First column is for container ID   Use the container ID to run   docker inspect  lt container ID gt    At the bottom under  NetworkSettings   you can find  IPAddress   Or Just do   docker inspect  lt container id gt    grep  IPAddress

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This will list down all the container IPs on the host   sudo docker ps -aq   while read line   do sudo docker inspect -f     Name   -   range  NetworkSettings Networks     IPAddress    end     line   done

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I wrote the following Bash script to get a table of IP addresses from all containers running under docker-compose   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     You should change the variable network to your own network name

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To get the IP address and host port of a container   docker inspect containerId   awk   IPAddress      HostPort     Output        HostPort    4200                       HostPort    4200           SecondaryIPAddresses   null           IPAddress    172 17 0 2                    IPAddress    172 17 0 2

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For those who came from Google to find a solution for command execution from the terminal  not by a script    jid   which is an interactive JSON drill-down utility with autocomplete and suggestion  lets you do the same thing with less typing    docker inspect  CID   jid   Type Tab  Net Tab and you ll see something like    Filter  gt    0  NetworkSettings      Bridge          EndpointID    b69eb8bd4f11d8b172c82f21ab2e501fe532e4997fc007ed1a997750396355d5      Gateway    172 17 0 1      GlobalIPv6Address          GlobalIPv6PrefixLen   0     HairpinMode   false     IPAddress    172 17 0 2      IPPrefixLen   16     IPv6Gateway          LinkLocalIPv6Address          LinkLocalIPv6PrefixLen   0     MacAddress    02 42 ac 11 00 02      Networks          bridge            Aliases   null         EndpointID    b69eb8bd4f11d8b172c82f21ab2e501fe532e4997fc007ed1a997750396355d5          Gateway    172 17 0 1          GlobalIPv6Address         Type  IPA Tab and you ll see something like    Filter  gt    0  NetworkSettings IPAddress  172 17 0 2

User · Answer

Add this shell script in your    bashrc or relevant file   docker-ip       docker inspect --format      NetworkSettings IPAddress              Then  to get an IP address of a container  simply do this   docker-ip YOUR CONTAINER ID   For the new version of the Docker  please use the following   docker-ip             docker inspect --format    range  NetworkSettings Networks     IPAddress    end

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Docker inspect use to print all container ips and its respective names  docker ps -q   xargs -n 1 docker inspect --format    range  NetworkSettings Networks     IPAddress    end       Name       sed  s

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For windows 10   docker inspect --format      NetworkSettings IPAddress      containerId

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The accepted answer covers exactly what to type fairly well  but here s a minor improvement   docker container inspect     --format    range  NetworkSettings Networks     IPAddress     end         container id or name   This uses the docker container inspect instead of the more generic docker inspect since docker is moving to a noun verb syntax in their commands  and removing ambiguity of what you are inspecting  I ve also included a space after the IP address since containers can be on more than one docker network with more than one IP address  That could be swapped out for any other character or string that makes sense to you     For those that want to know how they can lookup other values  I often use the following to output any docker formatted syntax into json   docker container inspect --format    json       container id or name   jq     You may need to install jq for this to work  or you can leave off the trailing command to read the json as a single long line  When viewing this output  you can see each key name and it s parents so you can create your own format strings to output anything you want  The format syntax is implemented with golang s template with some extra docker specific functions included        Basically  once Docker creates the container  I want to roll my own code deployment and container configuration scripts    The main reason for my answer is this comment has a huge red flag to me  It indicates that your images do not contain everything needed to run your application  a big anti-pattern when working with containers  With a dozen clients over many years  I ve yet to find a real world use case to connect directly to a container by it s internal IP address from the docker host that didn t have a better option  Instead  if there s post-startup configuration in your container that needs to run  this is often done with an entrypoint script   There is also a red flag that you are bypassing docker s networking model  With docker networking  there are two options  First  when communicating between containers  this is done with a user created network and using docker s built-in DNS to connect to the container by name or network alias rather than by an IP address that would change when the container is recreated  And for communicating from outside of docker to the container  this is done by publishing a port from the docker host to the container  and then connecting to the host on that port rather than to the container directly  If you stick with these two options  you should be able to access your application without ever knowing its internal IP address

User · Answer

for containerId in   sudo docker ps -a   cut -f1 -d      grep -v CONTAINER   do     echo   ContainerId -  containerId  gt  gt     sudo docker inspect --format      NetworkSettings IPAddress      containerId    done

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NOTE    for Docker Compose Usage   Since Docker Compose creates an isolated network for each cluster  the methods below do not work with docker-compose     The most elegant and easy way is defining a shell function  currently the most-voted answer  WouterD s   dockip       docker inspect --format      NetworkSettings IPAddress              Docker can write container IDs to a file like Linux programs   Running with --cidfile filename  Docker dumps the ID of the container to  filename    See  Docker runs PID equivalent Section  for more information   --cidfile  app cid   Write the container ID to the file   Using a PID file    Running container with --cidfile parameter  the app cid file content is like   a29ac3b9f8aebf66a1ba5989186bd620ea66f1740e9fe6524351e7ace139b909  You can use file content to inspect Docker containers   blog-v4 git  develop    docker inspect  cat app cid   You can extract the container IP using an inline Python script     docker inspect  cat app cid    python -c  import json import sys   sys stdout write json load sys stdin  0   NetworkSettings    IPAddress     172 17 0 2    Here s a more human friendly form      usr bin env python   Coding  utf-8   Save this file like get-docker-ip py in a folder that in  PATH   Run it with     docker inspect  lt CONTAINER ID gt    get-docker-ip py  import json import sys  sys stdout write json load sys stdin  0   NetworkSettings    IPAddress      See  10 alternatives of getting the Docker container IP addresses  for more information

User · Answer

This script will get the IPv4 address for all running containers without further processing or interpreting results  If you don t want the container name as well  you can just remove the  echo -n  NAME   line  Great for automation or filling variables      bin sh for NAME in   docker ps --format    Names    do   echo -n   NAME     docker inspect  NAME   grep -i  ip   12     0-9                 sed -e  s       g  -e  s       g  -e  s  a-zA-Z     g  done   you can just create an alias too if you wanted like this   alias dockerip  for NAME in   docker ps --format    Names     do echo -n   NAME    docker inspect  NAME grep -i  ip   12     0-9    sed -e  s       g  -e  s       g  -e  s  a-zA-Z     g

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The --format option of inspect comes to the rescue  Modern Docker client syntax is  docker inspect -f    range NetworkSettings Networks     IPAddress    end    container name or id  Old Docker client syntax is  docker inspect --format      NetworkSettings IPAddress     container name or id  These commands will return the Docker container s IP address  As mentioned in the comments  if you are on Windows  use double quotes  quot  instead of single quotes   around the curly braces

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To get all container names and their IP addresses in just one single command   docker inspect -f     Name   -    NetworkSettings IPAddress       docker ps -aq    If you are using docker-compose the command will be this   docker inspect -f     Name   -   range  NetworkSettings Networks     IPAddress    end      docker ps -aq    The output will be    containerA - 172 17 0 4  containerB - 172 17 0 3  containerC - 172 17 0 2

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Check this script  https   github com jakubthedeveloper DockerIps  It returns container names with their IP s in the following format   abc nginx 172 21 0 4 abc php 172 21 0 5 abc phpmyadmin 172 21 0 3 abc mysql 172 21 0 2

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My answer  docker inspect -f    range  NetworkSettings Networks     IPAddress    end    tab     Name      docker ps -aq     sed  s  tab   t g    sed  s    g    sort -t   -k 1 1n -k 2 2n -k 3 3n -k 4 4n  Also as a bash alias  docker-ips       docker inspect -f    range  NetworkSettings Networks     IPAddress    end    tab     Name      docker ps -aq    sed  s  tab   t g    sed  s    g    sort -t   -k 1 1n -k 2 2n -k 3 3n -k 4 4n    Output is sorted by IP address  and tab delimited    docker-ips 172 18 0 2       memcached 172 18 0 3       nginx 172 18 0 4       fpm-backup 172 18 0 5       dns 172 18 0 6       fpm-beta 172 18 0 7       exim 172 18 0 8       fpm-delta 172 18 0 9       mariadb 172 18 0 10      fpm-alpha 172 19 0 2       nextcloud-redis 172 19 0 3       nextcloud-db 172 19 0 4       nextcloud

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For Windows containers use  docker exec  lt container gt  ipconfig   where  lt container gt  is the name or the id of the container   You can use docker ps to find the id of the container

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docker inspect  lt container id gt    grep -i ip   For example   docker inspect 2b0c4b617a8c   grep -i ip

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The accepted answer does not work well with multiple networks per container    gt  docker inspect -f    range  NetworkSettings Networks     IPAddress    end    cc54d96d63ea  172 20 0 4172 18 0 5   The next best answer is closer    gt  docker inspect cc54d96d63ea   grep  IPAddress    SecondaryIPAddresses   null   IPAddress            IPAddress    172 20 0 4        IPAddress    172 18 0 5     I like to use jq to parse the network JSON    gt  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         To list the IP addresses of every container then becomes   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

User · Answer

Based on some of the answers I loved  I decided to merge them to a function to get all the IP addresses and another for an specific container  They are now in my  bashrc file   docker-ips         docker inspect --format     Name   -   range  NetworkSettings Networks     IPAddress    end      docker ps -aq     docker-ip       docker inspect --format    range  NetworkSettings Networks     IPAddress    end             The first command gives the IP address of all the containers and the second a specific container s IP address   docker-ips docker-ip YOUR CONTAINER ID

User · Answer

Nobody has proposed the Docker Python API yet   Docker API solution to get IP Address is fairly simple    NIX based OS   docker api 3 7  updated thanks to canadadry from the comments   import docker  client   docker DockerClient base url  unix   var run docker sock   x container   client containers filters   name   x container    0  x ip addr   x container  NetworkSettings    Networks    NETWORK NAME    IPAddress     OS Agnostic   docker api 4 0 x  added thanks to pds from the comments    import docker  client   docker from env   container   client containers get container name  vars  container    attrs    NetworkSettings    Networks     lt NETWORK NAME gt     IPAddress     Wasn t too hard to find  but is useful  additionally this can be easily modified to find all IP s assigned to a container on various networks

User · Answer

To extend ko-dos  answer  here s an alias to list all container names and their IP addresses   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

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Try in Windows PowerShell        docker inspect -f      NetworkSettings Networks nat IPAddress      lt container id gt

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Here s a quick working answer     Get your container name or ID   docker container ls   Then get the IP   docker inspect  lt container ID Or container name gt   grep  IPAddress    Get the port   docker inspect  lt container ID Or container name gt   grep  Port

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If you want to quickly see all Docker IP addresses  or without typing the instance name  you can hack the docker ps command adding this to your    bashrc file   function docker-ips         docker ps   while read line  do         if  echo  line   grep -q  CONTAINER ID    then             echo -e  IP ADDRESS t line          else             CID   echo  line   awk   print  1                 IP   docker inspect -f      NetworkSettings IPAddress      CID               printf    IP  t  line  n          fi     done      This comes from a proposal by Andrew Johnstone at the Docker GitHub  https   github com docker docker issues 8786

User · Answer

I use this simple way  docker exec -it  lt container id or name gt  hostname -i   e g  ubuntu myhost    docker exec -it 3d618ac670fe hostname -i 10 0 1 5

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As of Docker version 1 10 3  build 20f81dd  Unless you told Docker otherwise  Docker always launches your containers in the bridge network  So you can try this command below   docker network inspect bridge   Which should then return a Containers section which will display the IP address for that running container                     Name    bridge            Id    40561e7d29a08b2eb81fe7b02736f44da6c0daae54ca3486f75bfa81c83507a0            Scope    local            Driver    bridge            IPAM                  Driver    default                Options   null               Config                                            Subnet    172 17 0 0 16                                                      Containers                  025d191991083e21761eb5a56729f61d7c5612a520269e548d0136e084ecd32a                      Name    drunk leavitt                    EndpointID    9f6f630a1743bd9184f30b37795590f13d87299fe39c8969294c8a353a8c97b3                    IPv4Address    172 17 0 2 16                    IPv6Address                                        Options                  com docker network bridge default bridge    true                com docker network bridge enable icc    true                com docker network bridge enable ip masquerade    true                com docker network bridge host binding ipv4    0 0 0 0                com docker network bridge name    docker0                com docker network driver mtu    1500

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Docker is written in Go and it uses Go syntax for query purposes too    To inspect the IP address of a particular container  you need to run the command  -f for  format     docker inspect -f    range  NetworkSettings Networks     IPAddress    end    container id or name   For the container ID or name  you can run the command  docker container ls   which will list every running container

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Reference containers by name   docker run     --name pg-master   Then grab the IP address address by name   MASTER HOST   docker inspect --format      NetworkSettings IPAddress     pg-master

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I had to extract docker container IP Adress by docker container name for further usage in deployment scripts  For this purpose I have written the following bash command   docker inspect   sudo docker ps   grep my container name   head -c 12    grep -e   IPAddress       space      0-2    grep -o   0-9   1 3     0-9   1 3     0-9   1 3     0-9   1 3      Suppose it could be handy to place it into a bash script  which would expect my container name as an argument

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docker inspect --format      NetworkSettings IPAddress      lt containername or containerID here gt    The above works if the container is deployed to the default bridge network   However  if using a custom bridge network or a overlay network  I found the below to work better   docker exec  lt containername or containerID here gt   sbin ifconfig eth0   grep  inet addr     cut -d  -f2   awk    print  1

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I had troubles with my multi-network environment so this is a more dynamic version Get all hostnames  networks and IPs residing in one compose file  for N in   docker-compose ps -q    do echo  quot   docker inspect -f     Config Hostname      N     docker inspect -f    range  i   value     NetworkSettings Networks       i      IPAddress     end      N   quot   done  Outputs containerA  networkA 192 168 1 4   networkB 192 168 2 4  containerB   networkA 192 168 1 5   To get all running containers replace the first command for N in   docker-compose ps -q   with  for N in   docker container ls   awk  NR gt  2    cut -c1-12     Get IP of 1 specific container  with multiple networks   given 1 specific network docker inspect --format    range  i   value     NetworkSettings Networks    if eq  i  quot NETWORKNAME quot      IPAddress    end    end    CONTAINERNAME  Outputs 192 168 1 4  Get  Hostname IP  of all containers  with multiple networks   given 1 specific network for N in   docker-compose ps -q    do echo  quot   docker inspect -f     Config Hostname      N     docker inspect -f    range  i   value     NetworkSettings Networks    if eq  i  quot intranet quot      IPAddress    end    end      N   quot   done  Outputs containerA 192 168 1 4 containerB 192 168 1 5  Get IP of all containers  with multiple networks   given 1 specific network for N in   docker-compose ps -q    do echo  quot    docker inspect -f    range  i   value     NetworkSettings Networks    if eq  i  quot intranet quot      IPAddress    end    end      N   quot   done  Outputs 192 168 1 4 192 168 1 5

User · Answer

There are various ways to get the IP of the container from the host    x000D   x000D  docker inspect -f    range  NetworkSettings Networks     IPAddress    end    containerID x000D   x000D   x000D    If in case you can t remember the above command you can always do the following  docker inspect containerID  It will  Return low-level information on Docker objects after the information is returned look for  Networks  and inside it you will find  IPAddress  of container

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Along with the accepted answer if you need a specific handy alias to get a specific container ip use this alias  alias dockerip  f    docker inspect  1 grep -i  ipaddress   12     0-9    sed -e  s       g  -e  s        g  -e  s       g  -e  s  a-zA-Z     g    sort --unique   unset -f f     f    and then you can get your container ip with   dockerip  lt containername gt      You can also use containerid instead of containername   BTW accepted great answer doenst produce a clean output so I edited it and using like this     alias dockerips  for NAME in   docker ps --format    Names     do echo -n   NAME    docker inspect  NAME grep -i  ipaddress   12     0-9    sed -e  s       g  -e  s        g  -e  s         g  -e  s  a-zA-Z     g    sort --unique done

User · Answer

Use   docker inspect  CID   grep IPAddress   grep -v null  cut -d     -f 4   head -1

User · Answer

Combining previous answers with finding the container ID based on the Docker image name   docker inspect --format      NetworkSettings IPAddress      docker ps   grep  IMAGE NAME   sed  s          awk   print  1

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Inspect didn t work for me  Maybe as I was using -net host and some namespaces   Anyway  I found this to work nicely   docker exec -i -t NAME  sbin ifconfig docker0   grep  inet addr     cut -d  -f2   awk    print  1

User · Answer

docker inspect CONTAINER ID   grep  IPAddress    You can add -i to grep for ignoring the case then even the following will work   docker inspect CONTAINER ID   grep -i  IPaDDreSS

User · Answer

You can use docker inspect  lt container id gt    For example   CID   docker run -d -p 4321 base nc -lk 4321   docker inspect  CID

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docker inspect  lt container id gt    grep -i  ipaddress

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Here s is a solution that I developed today in Python  using the docker inspect container JSON output as the data source   I have a lot of containers and infrastructures that I have to inspect  and I need to obtain basic network information from any container  in a fast and pretty manner  That s why I made this script   IMPORTANT  Since the version 1 9  Docker allows you to create multiple networks and attach them to the containers      usr bin python  import json import subprocess import sys  try      CONTAINER   sys argv 1  except Exception as e      print   n tSpecify the container name  please       print   t tEx    script py my container n      sys exit 1     Inspecting container via Subprocess proc   subprocess Popen   docker   inspect  CONTAINER                         stdout subprocess PIPE                        stderr subprocess STDOUT   out   proc stdout read   json data   json loads out  0   net dict      for network in json data  NetworkSettings    Networks   keys        net dict  mac addr      json data  NetworkSettings    Networks   network   MacAddress       net dict  ipv4 addr     json data  NetworkSettings    Networks   network   IPAddress       net dict  ipv4 net      json data  NetworkSettings    Networks   network   IPPrefixLen       net dict  ipv4 gtw      json data  NetworkSettings    Networks   network   Gateway       net dict  ipv6 addr     json data  NetworkSettings    Networks   network   GlobalIPv6Address       net dict  ipv6 net      json data  NetworkSettings    Networks   network   GlobalIPv6PrefixLen       net dict  ipv6 gtw      json data  NetworkSettings    Networks   network   IPv6Gateway       for item in net dict          if net dict item        or net dict item     0              net dict item     null      print   n  s     network     print   n     gt 13     gt 14   format net dict  mac addr    IP NETWORK   GATEWAY       print  --------------------------------------------      print  IPv4 settings    gt 16     lt 5       format net dict  ipv4 addr   net dict  ipv4 net   net dict  ipv4 gtw        print  IPv6 settings    gt 16     lt 5       format net dict  ipv6 addr   net dict  ipv6 net   net dict  ipv6 gtw      The output is     python docker netinfo py debian1   frontend   02 42 ac 12 00 02   IP NETWORK        GATEWAY -------------------------------------------- IPv4 settings       172 18 0 2 16     172 18 0 1 IPv6 settings             null null   null   backend   02 42 ac 13 00 02   IP NETWORK        GATEWAY -------------------------------------------- IPv4 settings       172 19 0 2 16     172 19 0 1 IPv6 settings             null null   null

User · Answer

Show all container s IP addresses   docker inspect --format     Name   -   range  NetworkSettings Networks     IPAddress    end      docker ps -aq

User · Answer

If you installed Docker using Docker Toolbox  you can use the Kitematic application to get the container IP address    Select the container Click on Settings Click in Ports tab

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If you forgot container ID or don t want to manipulate with shell commands  it s better to use UI like Portainer   https   portainer io     docker volume create portainer data   docker run -d -p 9000 9000 -v  var run docker sock  var run docker sock -v portainer data  data portainer portainer   There you can find all information about container also IP

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Just another classic solution   docker ps -aq   xargs docker inspect -f     Name   -    NetworkSettings IPAddress

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In Docker 1 3   you can also check it using   Enter the running 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   docker exec  container-id or container-name  ipconfig

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this worked for me  I am running on docker-toolbox 18 09 3  at windows 10 home edition   type command  docker-machine ls     docker-machine ls NAME      ACTIVE   DRIVER       STATE     URL                         SWARM   DOCKER     ERRORS default            virtualbox   Running   tcp   192 168 98 100 2376           v18 09 6  it would show the actual IP under the URL column  E g   192 168 98 100

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docker inspect MY CONTAINER   jq -r      NetworkSettings Networks   IPAddress   plus   elegant syntax flexible  once you re down with jq you can use it everywhere there s json  very useful  powerful   minus   needs jq installed  e g  apt-get install jq

[docker] How to get a Docker container's IP address from the host

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