Inital Quobyte dynamic provision

pkg/volume/util/util.go

@@ -22,6 +22,7 @@ import (
 	"path"
 
 	"github.com/golang/glog"
+	"k8s.io/kubernetes/pkg/api"
 	clientset "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
 	"k8s.io/kubernetes/pkg/util/mount"
 )
@@ -126,3 +127,33 @@ func GetSecret(namespace, secretName string, kubeClient clientset.Interface) (ma
 	}
 	return secret, nil
 }
+
+// AddVolumeAnnotations adds a golang Map as annotation to a PersistentVolume
+func AddVolumeAnnotations(pv *api.PersistentVolume, annotations map[string]string) {
+	if pv.Annotations == nil {
+		pv.Annotations = map[string]string{}
+	}
+
+	for k, v := range annotations {
+		pv.Annotations[k] = v
+	}
+}
+
+// ParseVolumeAnnotations reads the defined annoations from a PersistentVolume
+func ParseVolumeAnnotations(pv *api.PersistentVolume, parseAnnotations []string) (map[string]string, error) {
+	result := map[string]string{}
+
+	if pv.Annotations == nil {
+		return result, fmt.Errorf("cannot parse volume annotations: no annotations found")
+	}
+
+	for _, annotation := range parseAnnotations {
+		if val, ok := pv.Annotations[annotation]; ok {
+			result[annotation] = val
+		} else {
+			return result, fmt.Errorf("cannot parse volume annotations: annotation %s not found", annotation)
+		}
+	}
+
+	return result, nil
+}