How to build bootable container image

[Jose Bautista Barato]

Hi folks.
I am trying to realize stateless provision using centos 8.
I can find container images ` warewulf/centos` and ` warewulf/centos-8`  in warewulf Dockerhub account.
But I faced issues with both images.
- warewulf/centos:8
I imported the container and wanted to change image. But I found that in that container, yum.repo list are all old ones.
```shell
Error: Failed to download metadata for repo 'AppStream': Cannot prepare internal mirrorlist: No URLs in mirrorlist
```
- warewulf/centos-8
When I attempt to import, it fails with this error.
```shell
ERROR  : Could not build container centos-8: Failed discovering files for VNFS container centos-8.4: /var/lib/warewulf/chroots/centos-8.rootfs: stat .exec: no such file or directory
```

Is there any ready-to-use images for centos8? Or any guide how to build bootable images from normal container image?

Regards.

[Gregory M. Kurtzer]

Hi Jose,

I can't verify right now, but this is probably due to the fact that CentOS has been EOL'ed (end of lifed) by Red Hat. CentOS-8 doesn't exist anymore. Rocky-8 is a drop-in replacement for CentOS-8. The container is present at docker://warewulf/rocky

Hope that helps!

Greg

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Gregory M. Kurtzer

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Director, The Rocky Enterprise Software Foundation: http://www.rockylinux.org

[Steve Jones]

Hi,

I can say in the hundreds of cluster builds I've done so far using the rocky-8 container Greg referenced that it works well. You can view our openhpc recipe for warewulf4 in the following link to see how we use it:

https://github.com/stanfordhpccenter/OpenHPC/blob/main/hpc-for-the-rest-of-us/recipes/rocky8/warewulf4/slurm/recipe.sh

Hope this helps.

Steve

---

From: Gregory M. Kurtzer <gmku...@gmail.com>
Sent: Friday, January 27, 2023 9:51 AM
To: ware...@lbl.gov <ware...@lbl.gov>
Subject: Re: [Warewulf] How to build bootable container image

 

To view this discussion on the web visit https://groups.google.com/a/lbl.gov/d/msgid/warewulf/CAApQTThk5yTROy1in%3D4eXeYJGutp0ues0fXFqS5di898P9KFXw%40mail.gmail.com.