How do you fix a docker push error, tag does not exist?

Question

When pushing a docker image to registry, I got this message:

docker push -t domain.com/repo/tag_docker_name:latest

Error tag name does not exist

The only way is to create the tag in docker repository via web interface, and then docker push works.

Is there a command line to create docker push?

Answer 1

You need to add a tag to the image, here is the documentation. Use it like this docker tag 0e5574283393 domain.com/repo/tag_docker_name:latest where 0e5574283393 is the image hash

Answer 2

First there is no option -t for docker push command

Second assume that you already have a tagged image said repo/your_image:tag , you should follow the push syntax docker push repo/your_image:tag , docker host should not be included (in your case domain.com ) unless you want to push the image to a private repository.

A simple way to check whether the image name existed is to use docker images , which lists all images available on the host, and image name should be the same as displayed in REPOSITORY column.

Follow this link to check docker documentation

Answer 3

If you have not tagged your image while docker build and added tag on push, you will get this error.

In my case, I haven't tagged the image and while build but push command added tag, that is why I was getting this error. below is my correct command

docker image build -t pankajrawat333/samplewebapp:v1 .
docker image push pankajrawat333/samplewebapp:v1

Answer 4

官方用法如下：

docker push < IMAGENAME >:< TAGNAME >

Answer 5

sudo docker tag (imagename or hash)(dockerhubaccountname or id)/(repositoryname):(give the tag name like v1)

eg - sudo docker tag myimage5 hitanshug/testrep:v1

then run this command docker push hitanshug/testrep:v1, always remember the tag v1 to mention it in both commands.

And if you want to push in a private repo, then first do Docker login, give the credentials, and run all the above commands.