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Description of problem:
On my self-built cloud images, attempts to login to booted VMs fail with the error "client_loop: send disconnect: Broken pipe".
This last worked on an image I built on November 24, 2021. Images I've built this week have this problem. The compose "CentOS-Stream-9-20211222.0" is the compose where this problem is exhibited.
Version-Release number of selected component (if applicable):
8.7p1-5.el9
How reproducible:
Always
Steps to Reproduce:
1. git clone https://gitlab.com/Conan_Kudo/kiwi-cloud-imagebuild-test
2. sudo podman run --privileged --rm -it -v $PWD/kiwi-cloud-imagebuild-test:/code:z --workdir /code registry.fedoraproject.org:34 /bin/bash
3. dnf --assumeyes install kiwi-cli
4. ./kiwi-build --image-type=oem --image-profile=OpenStack --image-name=centos9 --output-dir $PWD/tmpoutput
5. Boot in OpenStack
6. Try to login to cloud-user (the cloud-init configured user)
Actual results:
SSH login fails with "client_loop: send disconnect: Broken pipe"
Expected results:
SSH login works.
Additional info:
I've got a sample image demonstrating this problem: https://ngompa.fedorapeople.org/centos/CentOS-9-Appliance.x86_64-0.0.0-20220106.qcow2
Debug logs would be useful from both client and server.
Unfortunately, we can not support every rebuild. I can just confirm we have dozens tests that verify this particular use cases work with RHEL and CentOS builds we provide so this will most probably be some issue with the rebuild or with the infra.
(In reply to Jakub Jelen from comment #1)
> Debug logs would be useful from both client and server.
>
> Unfortunately, we can not support every rebuild. I can just confirm we have
> dozens tests that verify this particular use cases work with RHEL and CentOS
> builds we provide so this will most probably be some issue with the rebuild
> or with the infra.
What would you like logs of? I'm still trying to figure out how to do a workaround login somehow to get logs...
ssh client and sshd server one with LogLevel DEBUG3 in ssh_config and sshd_config.
You can probably access the VM through console to get the server logs, if you run it locally. Not sure about the OpenStack though ... but I believe there must be also some console access.
I figured out the issue. Apparently the SELinux policy wasn't being correctly applied, so "/var/run" was broken and sshd didn't work properly.
I fixed it in kiwi: https://github.com/OSInside/kiwi/pull/2046
You may want to make sure your image building tools are doing this properly too, as it was subtle and difficult to pin down.