CODEWITHSUNDEEP
dockerdocker-registry
Ville Miekk-oja
Ville Miekk-oja

Reputation: 20925

Docker show current registry

In docker, how can one display the current registry info you are currently logged in? I installed docker, if I now do docker push, where does it send my images?

I spend over 30min searching this info from Google and docker docs, and couldn't find it, so I think it deserves its own question.

Upvotes: 42

Views: 49671

Answers (3)

Puranjay Kwatra
Puranjay Kwatra

Reputation: 316

I have also encountered this problem while learning docker.

  • what happens when you don't know the name of your registry where you have to push the images or where do you build your image if you don't remember the name of the registry. Basically, the registry is just the name of your account in your docker hub. Just go to docker desktop and click on the images tab from the left panel. See this image for reference

Then just you can push using this command
docker push <YourRegistryName>/express:v1

Upvotes: 0

Mgccon
Mgccon

Reputation: 425

The way docker images work is not the most obvious but it is easy to explain.

The location where your images will be sent to must be define in the image name. When you commit an image you must name it [registry-IP]:[registry-port]/[imagepath]/[image-name]

If you already have the image created and you want to send it to the local registry you must tagged it including the registry path before you push it:

docker tag [image-name] [registry-IP]:[registry-port]/[image-name]

docker push [registry-IP]:[registry-port]/[image-name]

Upvotes: 7

Elton Stoneman
Elton Stoneman

Reputation: 19144

There's no concept of a "current" registry - full image tags always contain the registry address, but if no registry is specified then the Docker Hub is used as the default.

So docker push user/app pushes to Docker Hub. If you want to push it to a local registry you need to explicitly tag it with the registry address:

docker tag user/app localhost:5000/user/app
docker push localhost:5000/user/app

If your local registry is secured, you need to run docker login localhost:5000 but that does not change the default registry. If you push or pull images without a registry address in the tag, Docker will always use the Hub.

This issue explains the rationale.

Upvotes: 46

Related Questions