kubernetes-operator/pkg/controller/jenkins/configuration/base/resources/service.go

64 lines
2.0 KiB
Go

package resources
import (
"fmt"
"github.com/jenkinsci/kubernetes-operator/pkg/apis/jenkins/v1alpha2"
"github.com/jenkinsci/kubernetes-operator/pkg/controller/jenkins/constants"
corev1 "k8s.io/api/core/v1"
"net"
"strings"
)
// UpdateService returns new service with override fields from config
func UpdateService(actual corev1.Service, config v1alpha2.Service) corev1.Service {
actual.ObjectMeta.Annotations = config.Annotations
for key, value := range config.Labels {
actual.ObjectMeta.Labels[key] = value
}
actual.Spec.Type = config.Type
actual.Spec.LoadBalancerIP = config.LoadBalancerIP
actual.Spec.LoadBalancerSourceRanges = config.LoadBalancerSourceRanges
if len(actual.Spec.Ports) == 0 {
actual.Spec.Ports = []corev1.ServicePort{{}}
}
actual.Spec.Ports[0].Port = config.Port
if config.NodePort != 0 {
actual.Spec.Ports[0].NodePort = config.NodePort
}
return actual
}
// GetJenkinsServiceName returns Kubernetes service name used for expose Jenkins HTTP and Slaves endpoint
func GetJenkinsServiceName(jenkins *v1alpha2.Jenkins, serviceType string) string {
return fmt.Sprintf("%s-%s-%s", constants.OperatorName, serviceType, jenkins.ObjectMeta.Name)
}
// GetJenkinsServiceFQDN returns Kubernetes service FQDN used for expose Jenkins HTTP and Slaves endpoint
func GetJenkinsServiceFQDN(jenkins *v1alpha2.Jenkins, serviceType string) string {
clusterDomain := getClusterDomain()
return fmt.Sprintf("%s-%s-%s.%s", constants.OperatorName, serviceType, jenkins.ObjectMeta.Name, clusterDomain)
}
// GetClusterDomain returns Kubernetes cluster domain, default to "cluster.local"
func getClusterDomain() string {
apiSvc := "kubernetes.default.svc"
clusterDomain := "cluster.local"
cname, err := net.LookupCNAME(apiSvc)
if err != nil {
return clusterDomain
}
clusterDomain = strings.TrimPrefix(cname, "kubernetes")
clusterDomain = strings.TrimPrefix(clusterDomain, ".")
clusterDomain = strings.TrimSuffix(clusterDomain, ".")
return clusterDomain
}