11:15 a.m.
Hi Chris,
Thanks for the explanations.
Downloading the image from docker hub seems to solve the problem. None of those warnings
popped up. I think that the mentioned github repo didn't have the complete set of
architectures included. But Docker hub has a mechanism that includes all the architectures
in its repo.
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On Wed, Jun 12, 2024 at 19:18, Chris Evich<cevich(a)redhat.com> wrote: > I
assume it might not have the complete set of architectures.
So just as an FYI, there are two primary ways multiple architectures are
handled with images:
1. Separate arch-specific tags, i.e. repo/name:v1.0-amd64
2. Manifest lists (single name containing multiple "image" components)
The skopeo command I gave you works with the second method, it will fail
with the first. i.e. the --raw argument makes it show the manifest list
instead of the local arch image flavor.
If needed, it's possible to build/push/copy/assemble manifest lists
using podman/buildah/skopeo but it can be slightly non-intuitive. Both
podman and buildah have a 'manifest' sub-command to manipulate the
bundle of images. However there's no "podman manifest list", you have
to use `podman images --filter=manifest=true` to see them. The "podman
images" command only ever shows a single platform and/or arch image.
To see the manifest-list structure with skopeo, reference the local
storage like:
skopeo inspect --raw \
containers-storage:example.com/imange/name:tag \
| jq .
Hope that helps.
---
Chris Evich (he/him)
Senior Quality Assurance Engineer
If there's a "hard-way", I'm the first one to implement it.
On 6/12/24 10:08, Mehdi Haghgoo wrote:
You are right Chris. Even without the --arch flag, the command
automatically pulls the image and it issues the same warning. Since this repo is a mirror
from a selected set of Docker Hub tags, I assume it might not have the complete set of
architectures. I have simply pulled some tags and pushed them to ghcr.io.
So, I'll try pulling from docker.io and see if it makes a difference.
On Wednesday, June 12, 2024 at 05:31:16 PM GMT+3:30, Chris Evich
<cevich(a)redhat.com> wrote:
First off, you should not need to pass any special flags like --arch.
This part is automatic unless you intentionally want to run another arch
via emulation. If so, you need Rosetta enabled, and the form should be
"--arch amd64" (drop the "linux/" part).
Note: I'm assuming your podman-machine is running the arm64 VM iamge
(again, this should be automatic).
What is also possibly happening is the image itself may not be built for
ARM64. Unfortunately the repo. seems to require auth, so I cannot check
it for you. You can verify what architectures are supported with the
command (from inside the podman-machine vm, unless you have a native
copy of skopeo):
skopeo inspect --raw \
docker://ghcr.io/code-with-mehdi/rabbitmq:3-management \
| jq -re '.manifests[].platform.architecture'
If that gives you a "jq" error, or no "arm64" in the output, then
it's
probably not a image manifest-list and/or not built for arm64.
Hope that helps.
---
Chris Evich (he/him)
Senior Quality Assurance Engineer
If there's a "hard-way", I'm the first one to implement it.
On 6/12/24 09:39, Mehdi Haghgoo via Podman wrote:
> Hi all,
>
> I'm trying to run rabbitmq images on MacBook M1 and I see warnings like:
>
> WARNING: image platform (linux/amd64) does not match the expected platform
(linux/linux/arm64)
>
> I run the command:
>
> podman run --rm -p 8000:8080 --arch linux/arm64
ghcr.io/code-with-mehdi/rabbitmq:3-management
>
> and it fails to boot with a lot of logs that I like below:
>
> Mozilla Community Pastebin/QTExU80S (Plain Text)
>
> Mozilla Community Pastebin/QTExU80S (Plain Text)
>
> Is there a special flag I need to pass to fetch arm64 images?
>
> I'm not sure the boot issue has anything to do with the image arch
incompatibility, though. Some enlightening on this from someone who has experience and
insight will be appreciated.
>
> Best regards,
> Mehdi
>
>
>
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