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Merge pull request #6593 from qiutongs/improve-container-mount

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Make the temp mount as ready only in container WithVolumes
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Fu Wei 2022-03-18 00:03:28 +08:00 committed by GitHub
commit d9797673b0
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1 changed files with 6 additions and 0 deletions
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6
pkg/cri/opts/container.go
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@ -69,6 +69,12 @@ func WithVolumes(volumeMounts map[string]string) containerd.NewContainerOpts {
if err != nil {
return err
}
// Since only read is needed, append ReadOnly mount option to prevent linux kernel
// from syncing whole filesystem in umount syscall.
if len(mounts) == 1 && mounts[0].Type == "overlay" {
mounts[0].Options = append(mounts[0].Options, "ro")
}
root, err := os.MkdirTemp("", "ctd-volume")
if err != nil {
return err