Add generated file

This PR adds generated files under pkg/client and vendor folder.

vendor/k8s.io/kubernetes/pkg/controller/volume/attachdetach/util/BUILD

@@ -0,0 +1,34 @@
+package(default_visibility = ["//visibility:public"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_library",
+)
+
+go_library(
+    name = "go_default_library",
+    srcs = ["util.go"],
+    importpath = "k8s.io/kubernetes/pkg/controller/volume/attachdetach/util",
+    deps = [
+        "//pkg/controller/volume/attachdetach/cache:go_default_library",
+        "//pkg/volume:go_default_library",
+        "//pkg/volume/util:go_default_library",
+        "//vendor/github.com/golang/glog:go_default_library",
+        "//vendor/k8s.io/api/core/v1:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/types:go_default_library",
+        "//vendor/k8s.io/client-go/listers/core/v1:go_default_library",
+    ],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+)

vendor/k8s.io/kubernetes/pkg/controller/volume/attachdetach/util/util.go

@@ -0,0 +1,251 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+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 util
+
+import (
+	"fmt"
+
+	"github.com/golang/glog"
+	"k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/types"
+	corelisters "k8s.io/client-go/listers/core/v1"
+	"k8s.io/kubernetes/pkg/controller/volume/attachdetach/cache"
+	"k8s.io/kubernetes/pkg/volume"
+	"k8s.io/kubernetes/pkg/volume/util"
+)
+
+// CreateVolumeSpec creates and returns a mutatable volume.Spec object for the
+// specified volume. It dereference any PVC to get PV objects, if needed.
+func CreateVolumeSpec(podVolume v1.Volume, podNamespace string, pvcLister corelisters.PersistentVolumeClaimLister, pvLister corelisters.PersistentVolumeLister) (*volume.Spec, error) {
+	if pvcSource := podVolume.VolumeSource.PersistentVolumeClaim; pvcSource != nil {
+		glog.V(10).Infof(
+			"Found PVC, ClaimName: %q/%q",
+			podNamespace,
+			pvcSource.ClaimName)
+
+		// If podVolume is a PVC, fetch the real PV behind the claim
+		pvName, pvcUID, err := getPVCFromCacheExtractPV(
+			podNamespace, pvcSource.ClaimName, pvcLister)
+		if err != nil {
+			return nil, fmt.Errorf(
+				"error processing PVC %q/%q: %v",
+				podNamespace,
+				pvcSource.ClaimName,
+				err)
+		}
+
+		glog.V(10).Infof(
+			"Found bound PV for PVC (ClaimName %q/%q pvcUID %v): pvName=%q",
+			podNamespace,
+			pvcSource.ClaimName,
+			pvcUID,
+			pvName)
+
+		// Fetch actual PV object
+		volumeSpec, err := getPVSpecFromCache(
+			pvName, pvcSource.ReadOnly, pvcUID, pvLister)
+		if err != nil {
+			return nil, fmt.Errorf(
+				"error processing PVC %q/%q: %v",
+				podNamespace,
+				pvcSource.ClaimName,
+				err)
+		}
+
+		glog.V(10).Infof(
+			"Extracted volumeSpec (%v) from bound PV (pvName %q) and PVC (ClaimName %q/%q pvcUID %v)",
+			volumeSpec.Name,
+			pvName,
+			podNamespace,
+			pvcSource.ClaimName,
+			pvcUID)
+
+		return volumeSpec, nil
+	}
+
+	// Do not return the original volume object, since it's from the shared
+	// informer it may be mutated by another consumer.
+	clonedPodVolume := podVolume.DeepCopy()
+
+	return volume.NewSpecFromVolume(clonedPodVolume), nil
+}
+
+// getPVCFromCacheExtractPV fetches the PVC object with the given namespace and
+// name from the shared internal PVC store extracts the name of the PV it is
+// pointing to and returns it.
+// This method returns an error if a PVC object does not exist in the cache
+// with the given namespace/name.
+// This method returns an error if the PVC object's phase is not "Bound".
+func getPVCFromCacheExtractPV(namespace string, name string, pvcLister corelisters.PersistentVolumeClaimLister) (string, types.UID, error) {
+	pvc, err := pvcLister.PersistentVolumeClaims(namespace).Get(name)
+	if err != nil {
+		return "", "", fmt.Errorf("failed to find PVC %s/%s in PVCInformer cache: %v", namespace, name, err)
+	}
+
+	if pvc.Status.Phase != v1.ClaimBound || pvc.Spec.VolumeName == "" {
+		return "", "", fmt.Errorf(
+			"PVC %s/%s has non-bound phase (%q) or empty pvc.Spec.VolumeName (%q)",
+			namespace,
+			name,
+			pvc.Status.Phase,
+			pvc.Spec.VolumeName)
+	}
+
+	return pvc.Spec.VolumeName, pvc.UID, nil
+}
+
+// getPVSpecFromCache fetches the PV object with the given name from the shared
+// internal PV store and returns a volume.Spec representing it.
+// This method returns an error if a PV object does not exist in the cache with
+// the given name.
+// This method deep copies the PV object so the caller may use the returned
+// volume.Spec object without worrying about it mutating unexpectedly.
+func getPVSpecFromCache(name string, pvcReadOnly bool, expectedClaimUID types.UID, pvLister corelisters.PersistentVolumeLister) (*volume.Spec, error) {
+	pv, err := pvLister.Get(name)
+	if err != nil {
+		return nil, fmt.Errorf("failed to find PV %q in PVInformer cache: %v", name, err)
+	}
+
+	if pv.Spec.ClaimRef == nil {
+		return nil, fmt.Errorf(
+			"found PV object %q but it has a nil pv.Spec.ClaimRef indicating it is not yet bound to the claim",
+			name)
+	}
+
+	if pv.Spec.ClaimRef.UID != expectedClaimUID {
+		return nil, fmt.Errorf(
+			"found PV object %q but its pv.Spec.ClaimRef.UID (%q) does not point to claim.UID (%q)",
+			name,
+			pv.Spec.ClaimRef.UID,
+			expectedClaimUID)
+	}
+
+	// Do not return the object from the informer, since the store is shared it
+	// may be mutated by another consumer.
+	clonedPV := pv.DeepCopy()
+
+	return volume.NewSpecFromPersistentVolume(clonedPV, pvcReadOnly), nil
+}
+
+// DetermineVolumeAction returns true if volume and pod needs to be added to dswp
+// and it returns false if volume and pod needs to be removed from dswp
+func DetermineVolumeAction(pod *v1.Pod, desiredStateOfWorld cache.DesiredStateOfWorld, defaultAction bool) bool {
+	if pod == nil || len(pod.Spec.Volumes) <= 0 {
+		return defaultAction
+	}
+	nodeName := types.NodeName(pod.Spec.NodeName)
+	keepTerminatedPodVolume := desiredStateOfWorld.GetKeepTerminatedPodVolumesForNode(nodeName)
+
+	if util.IsPodTerminated(pod, pod.Status) {
+		// if pod is terminate we let kubelet policy dictate if volume
+		// should be detached or not
+		return keepTerminatedPodVolume
+	}
+	return defaultAction
+}
+
+// ProcessPodVolumes processes the volumes in the given pod and adds them to the
+// desired state of the world if addVolumes is true, otherwise it removes them.
+func ProcessPodVolumes(pod *v1.Pod, addVolumes bool, desiredStateOfWorld cache.DesiredStateOfWorld, volumePluginMgr *volume.VolumePluginMgr, pvcLister corelisters.PersistentVolumeClaimLister, pvLister corelisters.PersistentVolumeLister) {
+	if pod == nil {
+		return
+	}
+
+	if len(pod.Spec.Volumes) <= 0 {
+		glog.V(10).Infof("Skipping processing of pod %q/%q: it has no volumes.",
+			pod.Namespace,
+			pod.Name)
+		return
+	}
+
+	nodeName := types.NodeName(pod.Spec.NodeName)
+	if nodeName == "" {
+		glog.V(10).Infof(
+			"Skipping processing of pod %q/%q: it is not scheduled to a node.",
+			pod.Namespace,
+			pod.Name)
+		return
+	} else if !desiredStateOfWorld.NodeExists(nodeName) {
+		// If the node the pod is scheduled to does not exist in the desired
+		// state of the world data structure, that indicates the node is not
+		// yet managed by the controller. Therefore, ignore the pod.
+		glog.V(4).Infof(
+			"Skipping processing of pod %q/%q: it is scheduled to node %q which is not managed by the controller.",
+			pod.Namespace,
+			pod.Name,
+			nodeName)
+		return
+	}
+
+	// Process volume spec for each volume defined in pod
+	for _, podVolume := range pod.Spec.Volumes {
+		volumeSpec, err := CreateVolumeSpec(podVolume, pod.Namespace, pvcLister, pvLister)
+		if err != nil {
+			glog.V(10).Infof(
+				"Error processing volume %q for pod %q/%q: %v",
+				podVolume.Name,
+				pod.Namespace,
+				pod.Name,
+				err)
+			continue
+		}
+
+		attachableVolumePlugin, err :=
+			volumePluginMgr.FindAttachablePluginBySpec(volumeSpec)
+		if err != nil || attachableVolumePlugin == nil {
+			glog.V(10).Infof(
+				"Skipping volume %q for pod %q/%q: it does not implement attacher interface. err=%v",
+				podVolume.Name,
+				pod.Namespace,
+				pod.Name,
+				err)
+			continue
+		}
+
+		uniquePodName := util.GetUniquePodName(pod)
+		if addVolumes {
+			// Add volume to desired state of world
+			_, err := desiredStateOfWorld.AddPod(
+				uniquePodName, pod, volumeSpec, nodeName)
+			if err != nil {
+				glog.V(10).Infof(
+					"Failed to add volume %q for pod %q/%q to desiredStateOfWorld. %v",
+					podVolume.Name,
+					pod.Namespace,
+					pod.Name,
+					err)
+			}
+
+		} else {
+			// Remove volume from desired state of world
+			uniqueVolumeName, err := util.GetUniqueVolumeNameFromSpec(
+				attachableVolumePlugin, volumeSpec)
+			if err != nil {
+				glog.V(10).Infof(
+					"Failed to delete volume %q for pod %q/%q from desiredStateOfWorld. GetUniqueVolumeNameFromSpec failed with %v",
+					podVolume.Name,
+					pod.Namespace,
+					pod.Name,
+					err)
+				continue
+			}
+			desiredStateOfWorld.DeletePod(
+				uniquePodName, uniqueVolumeName, nodeName)
+		}
+	}
+	return
+}