Add arm64 image to the Pax nightly build

[yhtang]

This will render both the Pax nightlies (pax:nightly-YYYY-MM-DD) and the CI builds multi-arch.

[nouiz]

LGTM, but I can't review the details?
I get an error when I try to download the containers on x86:

$ docker pull ghcr.io/nvidia/jax-toolbox-internal:6316452742-base-multiarch
Error response from daemon: denied

How can I test it?

[yhtang]

LGTM, but I can't review the details? I get an error when I try to download the containers on x86:

$ docker pull ghcr.io/nvidia/jax-toolbox-internal:6316452742-base-multiarch
Error response from daemon: denied

How can I test it?

Our workflow already assigned a tag for the image, but it has not been built yet. It will be ready when the build-pax job completes.

That's an internal image. Did you docker login ghcr.io using a personal access token with NVIDIA SSO configured?

[yhtang]

This is the multiarch image produced by the workflow: ghcr.io/nvidia/jax-toolbox-internal:6316452742-pax-multiarch

[yhtang]

Pax MGMN tests all failed due to

slurmstepd: error: pyxis:     [ERROR] URL https://ghcr.io/v2/nvidia/jax-toolbox-internal/manifests/6316452742-pax-multiarch returned error code: 404 Not Found

There is an incompatibility between the pyxis enroot version available on our CI cluster and the format of the multi-arch manifest. I'll look into it.

[nouiz]

LGTM. When the CI pass, you can merge.

[yhtang]

Pax CI passed. I'll push one more minor fix for tag naming and then merge.