kubernetes/cmd/kubelet/app/plugins.go

// ProbeVolumePlugins collects all volume plugins into an easy to use list.
func ProbeVolumePlugins(featureGate featuregate.FeatureGate) ([]volume.VolumePlugin, error) { … }

// GetDynamicPluginProber gets the probers of dynamically discoverable plugins
// for kubelet.
// Currently only Flexvolume plugins are dynamically discoverable.
func GetDynamicPluginProber(pluginDir string, runner exec.Interface) volume.DynamicPluginProber { … }