fix(libvirt): use emptyDir for generated ceph config

[Dong Ma (larainema)]

Summary

• align the Atmosphere libvirt chart with merged upstream OpenStack-Helm change 992242
• store generated libvirt /etc/ceph content in an emptyDir instead of a hostPath
• remove bidirectional propagation from the /etc/ceph mount so Ceph config/keyring bind mounts stay inside the pod namespace

Testing

• git diff --check --cached
• git apply --reverse --check --directory=charts charts/patches/libvirt/0003-use-emptydir-for-generated-etcceph.patch
• helm lint charts/libvirt
• vale releasenotes/notes/libvirt-emptydir-etcceph-f6f8c9c0d0e1a2b3.yaml
• HTTPS_PROXY=http://localhost:33128 HTTP_PROXY=http://localhost:33128 go test -run 'TestKubeconform/libvirt' ./charts

[vexxhost-bot]

Successfully created backport PR for stable/zed:

• [Backport stable/zed] fix(libvirt): use emptyDir for generated ceph config #4011

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Successfully created backport PR for stable/2023.1:

• [Backport stable/2023.1] fix(libvirt): use emptyDir for generated ceph config #4012

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Successfully created backport PR for stable/2023.2:

• [Backport stable/2023.2] fix(libvirt): use emptyDir for generated ceph config #4013

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Successfully created backport PR for stable/2024.1:

• [Backport stable/2024.1] fix(libvirt): use emptyDir for generated ceph config #4014

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Successfully created backport PR for stable/2024.2:

• [Backport stable/2024.2] fix(libvirt): use emptyDir for generated ceph config #4015

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Successfully created backport PR for stable/2025.1:

• [Backport stable/2025.1] fix(libvirt): use emptyDir for generated ceph config #4016

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Successfully created backport PR for stable/2025.2:

• [Backport stable/2025.2] fix(libvirt): use emptyDir for generated ceph config #4017