docker unauthorized: authentication required - upon push with successful login

While pushing the docker image (after successful login) from my host I am getting "unauthorized: authentication required".

Details below.

-bash-4.2# docker login --username=asamba [email protected]
WARNING: login credentials saved in /root/.docker/config.json
*Login Succeeded*
-bash-4.2#
-bash-4.2# docker push asamba/docker-whale

Do you really want to push to public registry? [y/n]: y
The push refers to a repository [docker.io/asamba/docker-whale] (len: 0)
faa2fa357a0e: Preparing
unauthorized: authentication required

• Docker version: 1.9.1 (both client and server)
• http://hub.docker.com has the repo created as well (asamba/docker-whale).

The /var/log/messages shows 403, I dont know if this docker. See below.

Apr 16 11:39:03 localhost journal: time="2016-04-16T11:39:03.884872524Z" level=info msg="{Action=push, Username=asamba, LoginUID=1001, PID=2125}"
Apr 16 11:39:03 localhost journal: time="2016-04-16T11:39:03.884988574Z" level=error msg="Handler for POST /v1.21/images/asamba/docker-whale/push returned error: Error: Status 403 trying to push repository asamba/docker-whale to official registry: needs to be forced"
Apr 16 11:39:03 localhost journal: time="2016-04-16T11:39:03.885013241Z" level=error msg="HTTP Error" err="Error: Status 403 trying to push repository asamba/docker-whale to official registry: needs to be forced" statusCode=403
Apr 16 11:39:05 localhost journal: time="2016-04-16T11:39:05.420188969Z" level=info msg="{Action=push, Username=asamba, LoginUID=1001, PID=2125}"
Apr 16 11:39:06 localhost kernel: XFS (dm-4): Mounting V4 Filesystem
Apr 16 11:39:06 localhost kernel: XFS (dm-4): Ending clean mount
Apr 16 11:39:07 localhost kernel: XFS (dm-4): Unmounting Filesystem

Any help is appreciated, please let me know if you need further info. I did the push with -f as well. No luck!

You'll need to log in to Docker.

Step 1: log in to docker hub

Based on @KaraPirinc's comment, in Docker version 17 in order to log in:

docker login -u username --password-stdin

Then enter your password when asked.

Step 2: create a repository in the docker hub.

Let's say "mysqlserver:sql".

docker push <user username>/mysqlserver:sql

OK! never mind; I found the solution. with 403 Suspected that the HTTP is not going to the right URL.

Change the file which has the login credentials stored the ~/.docker/config.json from the default generated of

{
        "auths": {
                "docker.io": {
                        "auth": "XXXXXXXXXXXXX",
                        "email": "[email protected]"
                }
        }
}

to - Note the change from docker.io -> index.docker.io/v1. That is the change.

{
        "auths": {
                "https://index.docker.io/v1/": {
                        "auth": "XXXXXXXXXXXXX",
                        "email": "[email protected]"
                }
        }
}

Hope that helps.

Note that the auth field should be 'username:password" base64 encoded. for example: "username:password" base64 encoded is "dXNlcm5hbWU6cGFzc3dvcmQ="

so your file would contain:

"auth": "dXNlcm5hbWU6cGFzc3dvcmQ="

The solution you posted is not working for me...

This is what works for me:

1. Create the repository with the desired name.

2. When committing the image, name the image like the repository, including the username <dockerusername>/desired-name. For example, radu/desired-name.

if you are using heroku, be sure you did not forget to "heroku container:login" before pushing.