rebase: update kubernetes to v1.21.2

Updated kubernetes packages to latest release.
resizefs package has been included into k8s.io/mount-utils
package. updated code to use the same.

Updates: #1968

Signed-off-by: Rakshith R <rar@redhat.com>

vendor/k8s.io/kubernetes/pkg/apis/policy/BUILD

@@ -1,43 +0,0 @@
-package(default_visibility = ["//visibility:public"])
-
-load(
-    "@io_bazel_rules_go//go:def.bzl",
-    "go_library",
-)
-
-go_library(
-    name = "go_default_library",
-    srcs = [
-        "doc.go",
-        "register.go",
-        "types.go",
-        "zz_generated.deepcopy.go",
-    ],
-    importpath = "k8s.io/kubernetes/pkg/apis/policy",
-    deps = [
-        "//pkg/apis/core:go_default_library",
-        "//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
-        "//staging/src/k8s.io/apimachinery/pkg/runtime:go_default_library",
-        "//staging/src/k8s.io/apimachinery/pkg/runtime/schema:go_default_library",
-        "//staging/src/k8s.io/apimachinery/pkg/util/intstr:go_default_library",
-    ],
-)
-
-filegroup(
-    name = "package-srcs",
-    srcs = glob(["**"]),
-    tags = ["automanaged"],
-    visibility = ["//visibility:private"],
-)
-
-filegroup(
-    name = "all-srcs",
-    srcs = [
-        ":package-srcs",
-        "//pkg/apis/policy/fuzzer:all-srcs",
-        "//pkg/apis/policy/install:all-srcs",
-        "//pkg/apis/policy/v1beta1:all-srcs",
-        "//pkg/apis/policy/validation:all-srcs",
-    ],
-    tags = ["automanaged"],
-)

vendor/k8s.io/kubernetes/pkg/apis/policy/helper.go

@@ -0,0 +1,51 @@
+/*
+Copyright 2021 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 policy
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+const (
+	PDBV1beta1Label = "pdb.kubernetes.io/deprecated-v1beta1-empty-selector-match"
+)
+
+var (
+	NonV1beta1MatchAllSelector  = &metav1.LabelSelector{}
+	NonV1beta1MatchNoneSelector = &metav1.LabelSelector{
+		MatchExpressions: []metav1.LabelSelectorRequirement{{Key: PDBV1beta1Label, Operator: metav1.LabelSelectorOpExists}},
+	}
+
+	V1beta1MatchNoneSelector = &metav1.LabelSelector{}
+	V1beta1MatchAllSelector  = &metav1.LabelSelector{
+		MatchExpressions: []metav1.LabelSelectorRequirement{{Key: PDBV1beta1Label, Operator: metav1.LabelSelectorOpDoesNotExist}},
+	}
+)
+
+func StripPDBV1beta1Label(selector *metav1.LabelSelector) {
+	if selector == nil {
+		return
+	}
+
+	trimmedMatchExpressions := selector.MatchExpressions[:0]
+	for _, exp := range selector.MatchExpressions {
+		if exp.Key != PDBV1beta1Label {
+			trimmedMatchExpressions = append(trimmedMatchExpressions, exp)
+		}
+	}
+	selector.MatchExpressions = trimmedMatchExpressions
+}

vendor/k8s.io/kubernetes/pkg/apis/policy/types.go

@@ -77,6 +77,10 @@ type PodDisruptionBudgetStatus struct {
 
 	// total number of pods counted by this disruption budget
 	ExpectedPods int32
+
+	// Conditions contain conditions for PDB
+	// +optional
+	Conditions []metav1.Condition
 }
 
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
@@ -305,6 +309,7 @@ const (
 	PortworxVolume        FSType = "portworxVolume"
 	ScaleIO               FSType = "scaleIO"
 	CSI                   FSType = "csi"
+	Ephemeral             FSType = "ephemeral"
 	All                   FSType = "*"
 )
 

vendor/k8s.io/kubernetes/pkg/apis/policy/zz_generated.deepcopy.go

@@ -261,6 +261,13 @@ func (in *PodDisruptionBudgetStatus) DeepCopyInto(out *PodDisruptionBudgetStatus
 			(*out)[key] = *val.DeepCopy()
 		}
 	}
+	if in.Conditions != nil {
+		in, out := &in.Conditions, &out.Conditions
+		*out = make([]v1.Condition, len(*in))
+		for i := range *in {
+			(*in)[i].DeepCopyInto(&(*out)[i])
+		}
+	}
 	return
 }