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kubernetes: rootless: support Google Container-Optimized OS (Fix Options:[rbind ro]}]: operation not permitted errors) #1310

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Merged
crazy-max merged 1 commit into from
Oct 6, 2022
Merged

kubernetes: rootless: support Google Container-Optimized OS (Fix Options:[rbind ro]}]: operation not permitted errors) #1310

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18 changes: 18 additions & 0 deletions driver/kubernetes/manifest/manifest.go
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Original file line number Diff line number Diff line change
Expand Up @@ -213,6 +213,24 @@ func toRootless(d *appsv1.Deployment) error {
d.Spec.Template.ObjectMeta.Annotations = make(map[string]string, 1)
}
d.Spec.Template.ObjectMeta.Annotations["container.apparmor.security.beta.kubernetes.io/"+containerName] = "unconfined"

// Dockerfile has `VOLUME /home/user/.local/share/buildkit` by default too,
// but the default VOLUME does not work with rootless on Google's Container-Optimized OS
// as it is mounted with `nosuid,nodev`.
// https://github.com/moby/buildkit/issues/879#issuecomment-1240347038
// https://github.com/moby/buildkit/pull/3097
const emptyDirVolName = "buildkitd"
d.Spec.Template.Spec.Containers[0].VolumeMounts = append(d.Spec.Template.Spec.Containers[0].VolumeMounts, corev1.VolumeMount{
Name: emptyDirVolName,
MountPath: "/home/user/.local/share/buildkit",
})
d.Spec.Template.Spec.Volumes = append(d.Spec.Template.Spec.Volumes, corev1.Volume{
Name: emptyDirVolName,
VolumeSource: corev1.VolumeSource{
EmptyDir: &corev1.EmptyDirVolumeSource{},
},
})

return nil
}

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