Nexus 3 OSS - Multi Arch Docker images for Docker repository

post by haus.daniel on May 8, 2019

Hi all,

I have a question regarding the compatibility of the Docker repository in the NXRM 3.

Does the Docker repository include support for multi-arch images? I could not find anything in the documentation.

Thanks in advance for any help.

Best regards,

Daniel

• Nexus RM proxy repository Docker multi-arch manifest support

post by sverre.moe on Aug 14, 2020

Sad to see this has not been answered by Sonatype.

I have the same question.

From the Nexus UI it does not look like it supports multi-arch docker images.

I really hope I am wrong. If not I hope it will come soon (Even if it will be PRO only).

We have a need to have a docker image for jdk11 both for Linux, Mac and Windows.

I do not want to create different docker image names for each arch.

In order to build multi-arch, it looks like one needs to activate the docker experimental features.

post by mjohnson on Aug 14, 2020

Support for manifest lists were added in Nexus 3.22.0 which enables multi-arch images.

When referring to the Nexus UI not looking like it supports multi-arch, what specifically are you referring to?

I apologize that this did not make it into our release notes. The JIRA issue can be found at this link.

post by jstephens on Aug 14, 2020

@sverre.moe you can follow this ticket for updates to our docs: here.

post by luq.java on Sep 5, 2022

Hello, I have installed Nexus OSS 3.41.1. I have two machines A and B, where A is X86 and B is ARM64.

Now I push images from A and B to Nexus, it works well, and I can see two manifests.

Then I pull the image in A and B, but I can only pull the image which I pushed most recently. I can pull the ARM64 image in X86 Architecture.

How can I resolve this? Thanks.

post by jeff.wise on Sep 9, 2022

@luq.java,

Sounds like you pushed two different images/manifests with the same name/tag. You will only get the last pushed image. For multi-platform support, you need to push two images with a single manifest list. You need to either use docker buildx to build and push both platforms on a single machine, or use docker manifest create to push a manifest list containing both images. See the Docker Documentation on manifest and Docker Documentation on buildx for details.