docker access to the requested resource is not authorized

Question

I have ubuntu 14 and have installed docker 1.8.3. Unfortunately I have this error:

sudo docker login
Username (mauriziobioinfo): 
WARNING: login credentials saved in /home/maurizio/.docker/config.json
Login Succeeded

sudo docker push   mauriziobioinfo/varscan
The push refers to a repository [docker.io/mauriziobioinfo/varscan] (len: 1)
ec3a068ba18d: Buffering to Disk 
unauthorized: access to the requested resource is not authorized

Answer 1

The solution for me was to run "docker login" before the command. So I logged in and then pushed.

Answer 2

I had a similar error message using a repository on quay.io specifically. I had to mark the image as public even after a docker login quay.io command. It was an odd error and an odd solution since I had permissions to the image.

Answer 3

Things to troubleshoot:

1. docker login must be executed before a docker push username/repository:tag command.

   The docker push is not that automatic that it would give a different error message when not being logged in (or that it even would prompt for login on itself)

2. Double check your username in the push command line
3. Create the repository in the docker web-interface

4. Double check that the repository name in the push argument matches an existing one

   That means search for it under:

   https://hub.docker.com/u/$username/

5. Move an existing /root/.docker/config.json out of the way in case it is broken. Then, re-execute docker login.
6. Check the API URL in /root/.docker/config.json. For example, with some docker versions (e.g. 1.8.1/1.9.1) you have to replace docker.io with https://index.docker.io/v1/
7. If you execute some docker commands with sudo then make sure that all of them are executed with sudo (e.g. check if alias docker returns a definition)