Docker Windows Local Registry: received unexpected HTTP status: 500 Internal Server Error

Question

I am attempting to push an image of a windows container to a "local" repository on a Windows VM, which has it's own IP address.

So when I create the registry on my VM, I can view the repository list on my local machine by going to the ipaddress:5000 just fine.

However, when I try to push an image to the registry it shows the layers to be pushed but at the bottom it says received unexpected HTTP status: 500 Internal Server Error.

This isn't a problem when I switch to Linux containers. I can push and pull from the registry no problem.

Answer 1

You need to allow non distributable artifacts by setting the "allow-nondistributable-artifacts" option in the daemon configuration JSON file.

For Linux: Create or update the docker daemon JSON file with the above option at /etc/docker/daemon.json

For Windows:

1. Right click on Docker icon in the system tray and select settings
2. Select the Daemon tab
3. Enable Advanced option (if disabled)

4. Add the option allow-nondistributable-artifacts into the JSON Like:

   {
       "registry-mirrors": [],
       "insecure-registries": [],
       "debug": true,
       "experimental": true,
       "allow-nondistributable-artifacts": [
           "localhost:5000"
       ]
   }
   

5. Replace localhost with the name of your own server name.

6. Alternatively, the daemon.json file is located under C:\ProgramData\Docker\config\daemon.json

Note: If you have any other settings, ONLY allow-nondistributable-artifacts is important/required.

Answer 2

It could be because of an error on the remote server(or local server) where you want to push your image. In my case it was a disk space issue which was thrown as a 500 Server Error. The issue needs to be checked on the server where the image is being pushed.

All of your images were pushed except a few ones because all the others were already pushed and the ones which were new failed.

Answer 3

To me the problem was that our registry was full. I emptied it and it worked.