mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-19 03:20:20 +00:00
ff3e84ad67
updating kubernetes to 1.28.0 in the main repo. Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
107 lines
4.2 KiB
Go
107 lines
4.2 KiB
Go
/*
|
|
Copyright 2022 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 service
|
|
|
|
import (
|
|
"fmt"
|
|
"net/netip"
|
|
|
|
"k8s.io/apimachinery/pkg/util/validation/field"
|
|
api "k8s.io/kubernetes/pkg/apis/core"
|
|
"k8s.io/kubernetes/pkg/apis/core/helper"
|
|
)
|
|
|
|
func GetWarningsForService(service, oldService *api.Service) []string {
|
|
if service == nil {
|
|
return nil
|
|
}
|
|
var warnings []string
|
|
|
|
if _, ok := service.Annotations[api.DeprecatedAnnotationTopologyAwareHints]; ok {
|
|
warnings = append(warnings, fmt.Sprintf("annotation %s is deprecated, please use %s instead", api.DeprecatedAnnotationTopologyAwareHints, api.AnnotationTopologyMode))
|
|
}
|
|
|
|
if helper.IsServiceIPSet(service) {
|
|
for i, clusterIP := range service.Spec.ClusterIPs {
|
|
warnings = append(warnings, getWarningsForIP(field.NewPath("spec").Child("clusterIPs").Index(i), clusterIP)...)
|
|
}
|
|
}
|
|
|
|
for i, externalIP := range service.Spec.ExternalIPs {
|
|
warnings = append(warnings, getWarningsForIP(field.NewPath("spec").Child("externalIPs").Index(i), externalIP)...)
|
|
}
|
|
|
|
if len(service.Spec.LoadBalancerIP) > 0 {
|
|
warnings = append(warnings, getWarningsForIP(field.NewPath("spec").Child("loadBalancerIP"), service.Spec.LoadBalancerIP)...)
|
|
}
|
|
|
|
for i, cidr := range service.Spec.LoadBalancerSourceRanges {
|
|
warnings = append(warnings, getWarningsForCIDR(field.NewPath("spec").Child("loadBalancerSourceRanges").Index(i), cidr)...)
|
|
}
|
|
|
|
if service.Spec.Type == api.ServiceTypeExternalName && len(service.Spec.ExternalIPs) > 0 {
|
|
warnings = append(warnings, fmt.Sprintf("spec.externalIPs is ignored when spec.type is %q", api.ServiceTypeExternalName))
|
|
}
|
|
if service.Spec.Type != api.ServiceTypeExternalName && service.Spec.ExternalName != "" {
|
|
warnings = append(warnings, fmt.Sprintf("spec.externalName is ignored when spec.type is not %q", api.ServiceTypeExternalName))
|
|
}
|
|
|
|
return warnings
|
|
}
|
|
|
|
func getWarningsForIP(fieldPath *field.Path, address string) []string {
|
|
// IPv4 addresses with leading zeros CVE-2021-29923 are not valid in golang since 1.17
|
|
// This will also warn about possible future changes on the golang std library
|
|
// xref: https://issues.k8s.io/108074
|
|
ip, err := netip.ParseAddr(address)
|
|
if err != nil {
|
|
return []string{fmt.Sprintf("%s: IP address was accepted, but will be invalid in a future Kubernetes release: %v", fieldPath, err)}
|
|
}
|
|
// A Recommendation for IPv6 Address Text Representation
|
|
//
|
|
// "All of the above examples represent the same IPv6 address. This
|
|
// flexibility has caused many problems for operators, systems
|
|
// engineers, and customers.
|
|
// ..."
|
|
// https://datatracker.ietf.org/doc/rfc5952/
|
|
if ip.Is6() && ip.String() != address {
|
|
return []string{fmt.Sprintf("%s: IPv6 address %q is not in RFC 5952 canonical format (%q), which may cause controller apply-loops", fieldPath, address, ip.String())}
|
|
}
|
|
return []string{}
|
|
}
|
|
|
|
func getWarningsForCIDR(fieldPath *field.Path, cidr string) []string {
|
|
// IPv4 addresses with leading zeros CVE-2021-29923 are not valid in golang since 1.17
|
|
// This will also warn about possible future changes on the golang std library
|
|
// xref: https://issues.k8s.io/108074
|
|
prefix, err := netip.ParsePrefix(cidr)
|
|
if err != nil {
|
|
return []string{fmt.Sprintf("%s: IP prefix was accepted, but will be invalid in a future Kubernetes release: %v", fieldPath, err)}
|
|
}
|
|
// A Recommendation for IPv6 Address Text Representation
|
|
//
|
|
// "All of the above examples represent the same IPv6 address. This
|
|
// flexibility has caused many problems for operators, systems
|
|
// engineers, and customers.
|
|
// ..."
|
|
// https://datatracker.ietf.org/doc/rfc5952/
|
|
if prefix.Addr().Is6() && prefix.String() != cidr {
|
|
return []string{fmt.Sprintf("%s: IPv6 prefix %q is not in RFC 5952 canonical format (%q), which may cause controller apply-loops", fieldPath, cidr, prefix.String())}
|
|
}
|
|
return []string{}
|
|
}
|