Move manageVolumeOwnership to pkg/volume/volume.go

pkg/volume/volume.go

@@ -20,6 +20,7 @@ import (
 	"io/ioutil"
 	"k8s.io/kubernetes/pkg/api"
 	"k8s.io/kubernetes/pkg/api/resource"
+
 	"os"
 	"path"
 )

pkg/volume/volume_linux.go

@@ -0,0 +1,79 @@
+// +build linux
+
+/*
+Copyright 2016 The Kubernetes Authors All rights reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package volume
+
+import (
+	"k8s.io/kubernetes/pkg/util/chmod"
+	"k8s.io/kubernetes/pkg/util/chown"
+	"path/filepath"
+	"syscall"
+
+	"github.com/golang/glog"
+	"os"
+)
+
+const (
+	rwMask = os.FileMode(0660)
+	roMask = os.FileMode(0440)
+)
+
+// SetVolumeOwnership modifies the given volume to be owned by
+// fsGroup, and sets SetGid so that newly created files are owned by
+// fsGroup. If fsGroup is nil nothing is done.
+func SetVolumeOwnership(builder Builder, fsGroup *int64) error {
+
+	if fsGroup == nil {
+		return nil
+	}
+
+	chownRunner := chown.New()
+	chmodRunner := chmod.New()
+	return filepath.Walk(builder.GetPath(), func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+
+		stat, ok := info.Sys().(*syscall.Stat_t)
+		if !ok {
+			return nil
+		}
+
+		if stat == nil {
+			glog.Errorf("Got nil stat_t for path %v while setting ownership of volume", path)
+			return nil
+		}
+
+		err = chownRunner.Chown(path, int(stat.Uid), int(*fsGroup))
+		if err != nil {
+			glog.Errorf("Chown failed on %v: %v", path, err)
+		}
+
+		mask := rwMask
+		if builder.GetAttributes().ReadOnly {
+			mask = roMask
+		}
+
+		err = chmodRunner.Chmod(path, info.Mode()|mask|os.ModeSetgid)
+		if err != nil {
+			glog.Errorf("Chmod failed on %v: %v", path, err)
+		}
+
+		return nil
+	})
+}

pkg/volume/volume_unsupported.go

@@ -0,0 +1,23 @@
+// +build !linux
+
+/*
+Copyright 2016 The Kubernetes Authors All rights reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package volume
+
+func SetVolumeOwnership(builder Builder, fsGroup *int64) error {
+	return nil
+}