mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-23 05:20:19 +00:00
07b05616a0
Bumps [k8s.io/kubernetes](https://github.com/kubernetes/kubernetes) from 1.26.2 to 1.27.2. - [Release notes](https://github.com/kubernetes/kubernetes/releases) - [Commits](https://github.com/kubernetes/kubernetes/compare/v1.26.2...v1.27.2) --- updated-dependencies: - dependency-name: k8s.io/kubernetes dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>
87 lines
2.8 KiB
Go
87 lines
2.8 KiB
Go
/*
|
|
Copyright 2016 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"
|
|
"strings"
|
|
|
|
api "k8s.io/kubernetes/pkg/apis/core"
|
|
utilnet "k8s.io/utils/net"
|
|
)
|
|
|
|
const (
|
|
defaultLoadBalancerSourceRanges = "0.0.0.0/0"
|
|
)
|
|
|
|
// IsAllowAll checks whether the utilnet.IPNet allows traffic from 0.0.0.0/0
|
|
func IsAllowAll(ipnets utilnet.IPNetSet) bool {
|
|
for _, s := range ipnets.StringSlice() {
|
|
if s == "0.0.0.0/0" {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// GetLoadBalancerSourceRanges first try to parse and verify LoadBalancerSourceRanges field from a service.
|
|
// If the field is not specified, turn to parse and verify the AnnotationLoadBalancerSourceRangesKey annotation from a service,
|
|
// extracting the source ranges to allow, and if not present returns a default (allow-all) value.
|
|
func GetLoadBalancerSourceRanges(service *api.Service) (utilnet.IPNetSet, error) {
|
|
var ipnets utilnet.IPNetSet
|
|
var err error
|
|
// if SourceRange field is specified, ignore sourceRange annotation
|
|
if len(service.Spec.LoadBalancerSourceRanges) > 0 {
|
|
specs := service.Spec.LoadBalancerSourceRanges
|
|
ipnets, err = utilnet.ParseIPNets(specs...)
|
|
|
|
if err != nil {
|
|
return nil, fmt.Errorf("service.Spec.LoadBalancerSourceRanges: %v is not valid. Expecting a list of IP ranges. For example, 10.0.0.0/24. Error msg: %v", specs, err)
|
|
}
|
|
} else {
|
|
val := service.Annotations[api.AnnotationLoadBalancerSourceRangesKey]
|
|
val = strings.TrimSpace(val)
|
|
if val == "" {
|
|
val = defaultLoadBalancerSourceRanges
|
|
}
|
|
specs := strings.Split(val, ",")
|
|
ipnets, err = utilnet.ParseIPNets(specs...)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("%s: %s is not valid. Expecting a comma-separated list of source IP ranges. For example, 10.0.0.0/24,192.168.2.0/24", api.AnnotationLoadBalancerSourceRangesKey, val)
|
|
}
|
|
}
|
|
return ipnets, nil
|
|
}
|
|
|
|
// RequestsOnlyLocalTraffic checks if service requests OnlyLocal traffic.
|
|
func RequestsOnlyLocalTraffic(service *api.Service) bool {
|
|
if service.Spec.Type != api.ServiceTypeLoadBalancer &&
|
|
service.Spec.Type != api.ServiceTypeNodePort {
|
|
return false
|
|
}
|
|
|
|
return service.Spec.ExternalTrafficPolicy == api.ServiceExternalTrafficPolicyLocal
|
|
}
|
|
|
|
// NeedsHealthCheck checks if service needs health check.
|
|
func NeedsHealthCheck(service *api.Service) bool {
|
|
if service.Spec.Type != api.ServiceTypeLoadBalancer {
|
|
return false
|
|
}
|
|
return RequestsOnlyLocalTraffic(service)
|
|
}
|