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Describe what the input list of SELinux options is

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This commit is contained in:
Jan Safranek 2024-11-05 20:14:22 +01:00
parent 8791efc732
commit 8875f4daf0
1 changed files with 8 additions and 4 deletions
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12
pkg/volume/util/selinux.go
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@ -249,9 +249,12 @@ type SELinuxLabelInfo struct {
} }
// GetMountSELinuxLabel returns SELinux labels that should be used to mount the given volume volumeSpec and podSecurityContext. // GetMountSELinuxLabel returns SELinux labels that should be used to mount the given volume volumeSpec and podSecurityContext.
// It expects effectiveSELinuxContainerLabels as returned by volumeutil.GetPodVolumeNames, i.e. with all SELinuxOptions
// from all containers that use the volume in the pod, potentially expanded with PodSecurityContext.SELinuxOptions,
// if container's SELinuxOptions are nil.
// It does not evaluate the volume access mode! It's up to the caller to check SELinuxMount feature gate, // It does not evaluate the volume access mode! It's up to the caller to check SELinuxMount feature gate,
// it may need to bump different metrics based on feature gates / access modes / label anyway. // it may need to bump different metrics based on feature gates / access modes / label anyway.
func GetMountSELinuxLabel(volumeSpec *volume.Spec, seLinuxContainerContexts []*v1.SELinuxOptions, podSecurityContext *v1.PodSecurityContext, volumePluginMgr *volume.VolumePluginMgr, seLinuxTranslator SELinuxLabelTranslator) (SELinuxLabelInfo, error) { func GetMountSELinuxLabel(volumeSpec *volume.Spec, effectiveSELinuxContainerLabels []*v1.SELinuxOptions, podSecurityContext *v1.PodSecurityContext, volumePluginMgr *volume.VolumePluginMgr, seLinuxTranslator SELinuxLabelTranslator) (SELinuxLabelInfo, error) {
info := SELinuxLabelInfo{} info := SELinuxLabelInfo{}
if !utilfeature.DefaultFeatureGate.Enabled(features.SELinuxMountReadWriteOncePod) { if !utilfeature.DefaultFeatureGate.Enabled(features.SELinuxMountReadWriteOncePod) {
return info, nil return info, nil
@ -269,11 +272,12 @@ func GetMountSELinuxLabel(volumeSpec *volume.Spec, seLinuxContainerContexts []*v
info.PluginSupportsSELinuxContextMount = pluginSupportsSELinuxContextMount info.PluginSupportsSELinuxContextMount = pluginSupportsSELinuxContextMount
// Collect all SELinux options from all containers that use this volume. // Collect all SELinux options from all containers that use this volume.
// A set will squash any duplicities.
labels := sets.New[string]() labels := sets.New[string]()
for _, containerContext := range seLinuxContainerContexts { for _, containerLabel := range effectiveSELinuxContainerLabels {
lbl, err := seLinuxTranslator.SELinuxOptionsToFileLabel(containerContext) lbl, err := seLinuxTranslator.SELinuxOptionsToFileLabel(containerLabel)
if err != nil { if err != nil {
fullErr := fmt.Errorf("failed to construct SELinux label from context %q: %w", containerContext, err) fullErr := fmt.Errorf("failed to construct SELinux label from context %q: %w", containerLabel, err)
return info, fullErr return info, fullErr
} }
labels.Insert(lbl) labels.Insert(lbl)