mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-10-30 21:30:16 +00:00
3d0c961d57
- Fix some golint errors for `pkg/kubectl` - Fix a golint error for `pkg/kubectl/apps` - Fix all golint errors for `pkg/kubectl/cmd` - Fix some golint errors for `pkg/kubectl/generate/versioned` - Fix a golint error for `pkg/kubectl/generate` - Fix some golint errors for `pkg/kubectl/metricsutil` - Fix all golint errors for `pkg/kubectl/util` - Fix all golint errors for `pkg/kubectl/util/slice`
60 lines
2.0 KiB
Go
60 lines
2.0 KiB
Go
/*
|
|
Copyright 2018 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 util
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"k8s.io/api/core/v1"
|
|
"k8s.io/apimachinery/pkg/util/intstr"
|
|
)
|
|
|
|
// LookupContainerPortNumberByServicePort implements
|
|
// the handling of resolving container named port, as well as ignoring targetPort when clusterIP=None
|
|
// It returns an error when a named port can't find a match (with -1 returned), or when the service does not
|
|
// declare such port (with the input port number returned).
|
|
func LookupContainerPortNumberByServicePort(svc v1.Service, pod v1.Pod, port int32) (int32, error) {
|
|
for _, svcportspec := range svc.Spec.Ports {
|
|
if svcportspec.Port != port {
|
|
continue
|
|
}
|
|
if svc.Spec.ClusterIP == v1.ClusterIPNone {
|
|
return port, nil
|
|
}
|
|
if svcportspec.TargetPort.Type == intstr.Int {
|
|
if svcportspec.TargetPort.IntValue() == 0 {
|
|
// targetPort is omitted, and the IntValue() would be zero
|
|
return svcportspec.Port, nil
|
|
}
|
|
return int32(svcportspec.TargetPort.IntValue()), nil
|
|
}
|
|
return LookupContainerPortNumberByName(pod, svcportspec.TargetPort.String())
|
|
}
|
|
return port, fmt.Errorf("Service %s does not have a service port %d", svc.Name, port)
|
|
}
|
|
|
|
// LookupServicePortNumberByName find service port number by its named port name
|
|
func LookupServicePortNumberByName(svc v1.Service, name string) (int32, error) {
|
|
for _, svcportspec := range svc.Spec.Ports {
|
|
if svcportspec.Name == name {
|
|
return svcportspec.Port, nil
|
|
}
|
|
}
|
|
|
|
return int32(-1), fmt.Errorf("Service '%s' does not have a named port '%s'", svc.Name, name)
|
|
}
|