kubernetes check_hostPathVolumes 源码
kubernetes check_hostPathVolumes 代码
文件路径：/staging/src/k8s.io/pod-security-admission/policy/check_hostPathVolumes.go
/*
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}
}
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