rebase: update kubernetes to v1.25.0

update kubernetes to latest v1.25.0
release.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>

vendor/k8s.io/pod-security-admission/policy/check_hostPathVolumes.go

@@ -0,0 +1,76 @@
+/*
+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 (
+	"fmt"
+
+	corev1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/pod-security-admission/api"
+)
+
+/*
+HostPath volumes must be forbidden.
+
+**Restricted Fields:**
+
+spec.volumes[*].hostPath
+
+**Allowed Values:** undefined/null
+*/
+
+func init() {
+	addCheck(CheckHostPathVolumes)
+}
+
+const checkHostPathVolumesID CheckID = "hostPathVolumes"
+
+// CheckHostPathVolumes returns a baseline level check
+// that requires hostPath=undefined/null in 1.0+
+func CheckHostPathVolumes() Check {
+	return Check{
+		ID:    checkHostPathVolumesID,
+		Level: api.LevelBaseline,
+		Versions: []VersionedCheck{
+			{
+				MinimumVersion: api.MajorMinorVersion(1, 0),
+				CheckPod:       hostPathVolumes_1_0,
+			},
+		},
+	}
+}
+
+func hostPathVolumes_1_0(podMetadata *metav1.ObjectMeta, podSpec *corev1.PodSpec) CheckResult {
+	var hostVolumes []string
+
+	for _, volume := range podSpec.Volumes {
+		if volume.HostPath != nil {
+			hostVolumes = append(hostVolumes, volume.Name)
+		}
+	}
+
+	if len(hostVolumes) > 0 {
+		return CheckResult{
+			Allowed:         false,
+			ForbiddenReason: "hostPath volumes",
+			ForbiddenDetail: fmt.Sprintf("%s %s", pluralize("volume", "volumes", len(hostVolumes)), joinQuote(hostVolumes)),
+		}
+	}
+
+	return CheckResult{Allowed: true}
+}