70 lines
1.9 KiB
Go
70 lines
1.9 KiB
Go
/*
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Copyright 2021 Alibaba Group Holding Limited.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package helper
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import (
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"errors"
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"fmt"
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corev1 "k8s.io/api/core/v1"
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)
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func GetPortFromService(svc *corev1.Service, port string) *corev1.ServicePort {
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for _, servicePort := range svc.Spec.Ports {
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if servicePort.Name == port {
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return &servicePort
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}
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}
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return nil
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}
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func MustGetPortFromService(svc *corev1.Service, port string) *corev1.ServicePort {
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servicePort := GetPortFromService(svc, port)
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if servicePort == nil {
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panic("port not found: " + port)
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}
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return servicePort
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}
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func GetClusterAddrFromService(svc *corev1.Service, port string) (string, error) {
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svcPort := GetPortFromService(svc, port)
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if svcPort == nil {
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return "", errors.New("port not found: " + port)
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}
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return fmt.Sprintf("%s:%d", svc.Spec.ClusterIP, svcPort.Port), nil
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}
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func GetClusterIpPortFromService(svc *corev1.Service, port string) (string, int32, error) {
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svcPort := GetPortFromService(svc, port)
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if svcPort == nil {
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return "", -1, errors.New("port not found: " + port)
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}
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return svc.Spec.ClusterIP, svcPort.Port, nil
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}
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func GetServiceDNSRecord(svcName, namespace string, withinNamespace bool) string {
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if withinNamespace {
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return svcName
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} else {
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return svcName + "." + namespace
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}
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}
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func GetServiceDNSRecordWithSvc(svc *corev1.Service, withinNamespace bool) string {
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return GetServiceDNSRecord(svc.Name, svc.Namespace, withinNamespace)
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}
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