How to create named and latest tag in Docker?

Supposed I have an image that I want to tag as 0.10.24 (in my case it's an image containing Node.js 0.10.24). I built that image using a Dockerfile and executing docker build and by providing a tag using the -t parameter.

I expect that one day I will have additional versions of that image, so I will rerun the process, just with another tag name.

So far, so good. This works great and fine and all is well.

But, and this is where problems start, I also want to always have the newest image tagged ad latest additionally. So I guess I need to give two names to the very same image.

How do I do this? Do I really need to re-run docker build on the exact same version again, but this time use another tag, is is there a better option?

8 Answers

You can have multiple tags when building the image:

$ docker build -t whenry/fedora-jboss:latest -t whenry/fedora-jboss:v2.1 . 

Reference:

Once you have your image, you can use

$ docker tag <image> <newName>/<repoName>:<tagName> 

1. Build and tag the image with creack/node:latest

   $ ID=$(docker build -q -t creack/node .) 

2. Add a new tag

   $ docker tag $ID creack/node:0.10.24 

3. You can use this and skip the -t part from build

   $ docker tag $ID creack/node:latest 

Here is my bash script

docker build -t ${IMAGE}:${VERSION} . docker tag ${IMAGE}:${VERSION} ${IMAGE}:latest 

You can then remove untagged images if you rebuilt the same version with

docker rmi $(docker images | grep "^<none>" | awk "{print $3}") 

link

or

docker rmi $(docker images | grep "^<none>" | tr -s " " | cut -d' ' -f3 | tr '\n' ' ') 

or

Clean up commands:

Docker 1.13 introduces clean-up commands. To remove all unused containers, images, networks and volumes:

docker system prune 

or individually:

docker container prune docker image prune docker network prune docker volume prune 

ID=$(docker build -t creack/node .) doesn't work for me since ID will contain the output from the build.

SO I'm using this small BASH script:

#!/bin/bash set -o pipefail IMAGE=...your image name... VERSION=...the version... docker build -t ${IMAGE}:${VERSION} . | tee build.log || exit 1 ID=$(tail -1 build.log | awk '{print $3;}') docker tag $ID ${IMAGE}:latest docker images | grep ${IMAGE} docker run --rm ${IMAGE}:latest /opt/java7/bin/java -version 

Just grep the ID from docker images:

docker build -t creack/node:latest . docker tag "$ID" creack/node:0.10.24 docker tag "$ID" creack/node:latest 

Needs no temporary file and gives full build output. You still can redirect it to /dev/null or a log file.

Variation of Aaron's answer. Using sed without temporary files

#!/bin/bash VERSION=1.0.0 IMAGE=company/image ID=$(docker build -t ${IMAGE} . | tail -1 | sed 's/.*Successfully built \(.*\)$/\1/') docker tag ${ID} ${IMAGE}:${VERSION} docker tag -f ${ID} ${IMAGE}:latest 

To give tag to a docker file during build command:

docker build -t image_name:tag_name . 

otherwise it will give latest tag to you image automatically.

Hye it's very easy you just need to follow the below steps -

So, to create and tagging an image in Docker we can use the following commands

First take out your Docker id by running the below command

docker ps 

Copy -> Names

docker build -t dockerId/Name of your image you want:latest . 

For me I use docker build -t condescending_greider/newdoc:latest .

Thanks for your time