Docker Push to Proget Container Registry fails

[chris.jones_7613]

Docker Push to Proget Container Registry fails

Whenever I push an image it never completes all the layers!

pushing an image fails on 1 or more of the layers.
It will push most of the layers (usually the smaller ones) and it will get to the end of the bigger layers and then retry pushing again & again,
after a few attempts it fails.

Sometimes it shows a simple EOF error
Other times it’s an invalid digest error.

Example:

PS C:\ > docker login {My-Proget-URI}.uk
Username: dockerrepo
Password:
Login Succeeded
PS C:\ > docker push {My-Proget-URI}.uk/dockerrepo/teamcity-server:2019.1.2-linux
The push refers to repository [{My-Proget-URI}.uk/dockerrepo/teamcity-server]
469e05c1702a: Pushed
730dce3e0461: Pushing [==================================================>] 1.237GB/1.237GB
3efae2e4162b: Pushed
ef2df751a4b5: Pushed
4afa81dcce76: Pushed
b8c3ef7eadb7: Pushed
9ac650d610a0: Pushed
b701c7a6f8ac: Pushed
ca2bb65f907f: Pushed
b9b7103af585: Pushed
ca2991e4676c: Pushed
a768c3f3878e: Pushed
bc7f4b25d0ae: Pushed
EOF

and again…

C:> docker push {My-Proget-URI}.uk/dockerrepo/teamcity-server:2019.1.2-linux
The push refers to repository [{My-Proget-URI}.uk/dockerrepo/teamcity-server]
469e05c1702a: Layer already exists
730dce3e0461: Retrying in 1 second
3efae2e4162b: Layer already exists
ef2df751a4b5: Layer already exists
4afa81dcce76: Layer already exists
b8c3ef7eadb7: Layer already exists
9ac650d610a0: Layer already exists
b701c7a6f8ac: Layer already exists
ca2bb65f907f: Layer already exists
b9b7103af585: Layer already exists
ca2991e4676c: Layer already exists
a768c3f3878e: Layer already exists

and again…

PS C:> docker push {My-Proget-URI}.uk/dockerrepo/teamcity-server:2019.1.2-linux
The push refers to repository [{My-Proget-URI}.uk/dockerrepo/teamcity-server]
469e05c1702a: Layer already exists
730dce3e0461: Pushing [==================================================>] 1.237GB/1.237GB
3efae2e4162b: Layer already exists
ef2df751a4b5: Layer already exists
4afa81dcce76: Layer already exists
b8c3ef7eadb7: Layer already exists
9ac650d610a0: Layer already exists
b701c7a6f8ac: Layer already exists
ca2bb65f907f: Layer already exists
b9b7103af585: Layer already exists
ca2991e4676c: Layer already exists
a768c3f3878e: Layer already exists
bc7f4b25d0ae: Layer already exists
received unexpected HTTP status: 500 Internal Server Error

I basically re-tagged a good image that I’ve already pushed to Docker Hub.
So I’m trying the same docker push from the same machines, I’ve set the tag for our new private Proget container registry and docker logged in Ok.

Proget Setup:

I’ve created a container in our Azure Kubernetes Service Cluster from the docker hub image: inedo/proget:5.2.7
We’re using SQL Server.

I have set the Web.BaseUrl, created an account and assigned a Task to the container registry feed for the User with Publish Packages permission

Everything else seems to be working so far.
I’ve logged in amended Admin password, created users, setup a package feed, pushed packages, downloaded packages. I added the extension & setup the OSS vulnerability scanner.

After the failed push, looking on the container at the storage for packages I do see some blobs here:
ls -l /var/proget/packages/.docker/F1/blobs/sha256/

But, interestingly looking in the uploads folder there are a number of zero byte files!

ls -l /var/proget/packages/.docker/F1/uploads/

So, any ideas what’s preventing the image upload to container registry feed ?

Could it be Linux Mono file permissions

Thanks

[jjones]

Hi Chris,

This is a common issue that is related to Linux/Mono. ProGet Enterprise doesn't support Linux, is there anyway to use a Windows instance for your solution?

Thanks,
Jason

[chris.jones_7613]

Hi @jjones
We're using the provided Inedo Proget image (that is based on Mono).

We want the convenience of pulling a docker image for ProGet.

We have access to a Windows node pool, so yes we could run a Windows version, will there be a Windows based image?
or at least a Dockerfile with the steps for manual install of ProGet?

Thanks

[apxltd]

This is on our future roadmap; for now you'll need to install and manage as a normal windows application.