[docker] Get docker container id from container name

What is the command to get the docker container id from the container name?

Thanks for the answer of https://stackoverflow.com/a/65513726/889126, it gave me an idea to make a complete bash script as it is

export api_image_id=$(docker inspect --format="{{.Id}}" <image-name> | sed '/^[[:space:]]*$/d')

sudo docker exec -i -t ${api_image_id} /bin/bash

I need a specific container and make a script to extract some info from it in a quick sight.

Hope this would help others.

The following command:

docker ps --format 'CONTAINER ID : {{.ID}} | Name: {{.Names}} | Image:  {{.Image}} |  Ports: {{.Ports}}'

Gives this output:

CONTAINER ID : d8453812a556 | Name: peer0.ORG2.ac.ae | Image:  hyperledger/fabric-peer:1.4 |  Ports: 0.0.0.0:27051->7051/tcp, 0.0.0.0:27053->7053/tcp
CONTAINER ID : d11bdaf8e7a0 | Name: peer0.ORG1.ac.ae | Image:  hyperledger/fabric-peer:1.4 |  Ports: 0.0.0.0:17051->7051/tcp, 0.0.0.0:17053->7053/tcp
CONTAINER ID : b521f48a3cf4 | Name: couchdb1 | Image:  hyperledger/fabric-couchdb:0.4.15 |  Ports: 4369/tcp, 9100/tcp, 0.0.0.0:5985->5984/tcp
CONTAINER ID : 14436927aff7 | Name: ca.ORG1.ac.ae | Image:  hyperledger/fabric-ca:1.4 |  Ports: 0.0.0.0:7054->7054/tcp
CONTAINER ID : 9958e9f860cb | Name: couchdb | Image:  hyperledger/fabric-couchdb:0.4.15 |  Ports: 4369/tcp, 9100/tcp, 0.0.0.0:5984->5984/tcp
CONTAINER ID : 107466b8b1cd | Name: ca.ORG2.ac.ae | Image:  hyperledger/fabric-ca:1.4 |  Ports: 0.0.0.0:7055->7054/tcp
CONTAINER ID : 882aa0101af2 | Name: orderer1.o1.ac.ae | Image:  hyperledger/fabric-orderer:1.4 |  Ports: 0.0.0.0:7050->7050/tcp`enter code here`

1. Get container Ids of running containers ::

   $docker ps -qf "name=IMAGE_NAME"
   
       -f: Filter output based on conditions provided
       -q: Only display numeric container IDs
   

2. Get container Ids of all containers ::

   $docker ps -aqf "name=IMAGE_NAME"
   
       -a: all containers
   

The simplest way I can think of is to parse the output of docker ps

Let's run the latest ubuntu image interactively and connect to it

docker run -it ubuntu /bin/bash

If you run docker ps in another terminal you can see something like

CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
8fddbcbb101c        ubuntu:latest       "/bin/bash"         10 minutes ago      Up 10 minutes                           gloomy_pasteur

Unfortunately, parsing this format isn't easy since they uses spaces to manually align stuff

$ sudo docker ps | sed -e 's/ /@/g'
CONTAINER@ID@@@@@@@@IMAGE@@@@@@@@@@@@@@@COMMAND@@@@@@@@@@@@@CREATED@@@@@@@@@@@@@STATUS@@@@@@@@@@@@@@PORTS@@@@@@@@@@@@@@@NAMES
8fddbcbb101c@@@@@@@@ubuntu:latest@@@@@@@"/bin/bash"@@@@@@@@@13@minutes@ago@@@@@@Up@13@minutes@@@@@@@@@@@@@@@@@@@@@@@@@@@gloomy_pasteur@@@@@@

Here is a script that converts the output to JSON.

https://gist.github.com/mminer/a08566f13ef687c17b39

Actually, the output is a bit more convenient to work with than that. Every field is 20 characters wide. [['CONTAINER ID',0],['IMAGE',20],['COMMAND',40],['CREATED',60],['STATUS',80],['PORTS',100],['NAMES',120]]

Docker image inspect ImageName\ImageId --format={{'.ConatinerConfig.Hostname'}}

In my case I was running Tensorflow Docker container in Ubuntu 20.04 :Run your docker container in One terminal , I ran it with

docker run -it od

And then started another terminal and ran below docker ps with sudo:

sudo docker ps

I successfully got container id:

CONTAINER ID        IMAGE               COMMAND             CREATED             
STATUS              PORTS               NAMES
e4ca1ad20b84        od                  "/bin/bash"         18 minutes ago      
Up 18 minutes                           unruffled_stonebraker

You can try this:

docker inspect --format="{{.Id}}" container_name

This approach is OS independent.

I tried sudo docker container stats, and it will give out Container ID along with details of memory usage and Name, etc. If you want to stop viewing the process, do Ctrl+C. I hope you find it useful.

I also need the container name or Id which a script requires to attach to the container. took some tweaking but this works perfectly well for me...

export svr=$(docker ps --format "table {{.ID}}"| sed 's/CONTAINER ID//g' | sed '/^[[:space:]]*$/d')
docker exec -it $svr bash

The sed command is needed to get rid of the fact that the words CONTAINER ID gets printed too ... but I just need the actual id stored in a var.

If you want to get complete ContainerId based on Container name then use following command

 docker ps --no-trunc -aqf name=containername