How to push a docker image to a private repository

Question

I have a docker image tagged as me/my-image, and I have a private repo on the dockerhub named me-private.
When I push my me/my-image, I end up always hitting the public repo.

What is the exact syntax to specifically push my image to my private repo?

Answer 1

You need to tag your image correctly first with your registryhost:

docker tag [OPTIONS] IMAGE[:TAG] [REGISTRYHOST/][USERNAME/]NAME[:TAG]

Then docker push using that same tag.

docker push NAME[:TAG]

Example:

docker tag 518a41981a6a myRegistry.com/myImage
docker push myRegistry.com/myImage

Answer 2

Just three simple steps:

1. docker login --username username

   • prompts for password if you omit --password which is recommended as it doesn't store it in your command history

2. docker tag my-image username/my-repo

3. docker push username/my-repo

Answer 3

If you docker registry is private and self hosted you should do the following :

docker login <REGISTRY_HOST>:<REGISTRY_PORT>
docker tag <IMAGE_ID> <REGISTRY_HOST>:<REGISTRY_PORT>/<APPNAME>:<APPVERSION>
docker push <REGISTRY_HOST>:<REGISTRY_PORT>/<APPNAME>:<APPVERSION>

Example :

docker login repo.company.com:3456
docker tag 19fcc4aa71ba repo.company.com:3456/myapp:0.1
docker push repo.company.com:3456/myapp:0.1