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Native Kubernetes service load-balancing

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Romain 2023-03-20 16:46:05 +01:00 • committed by GitHub
parent 7af9d16208
commit 6e460cd652
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37 changed files with 1013 additions and 67 deletions
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15
pkg/provider/kubernetes/crd/kubernetes.go
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@ -10,8 +10,10 @@ import (
"encoding/json"
"errors"
"fmt"
"net"
"os"
"sort"
"strconv"
"strings"
"time"
@ -395,6 +397,7 @@ func (p *Provider) loadConfigurationFromCRD(ctx context.Context, client Client)
return conf
}
// getServicePort always returns a valid port, an error otherwise.
func getServicePort(svc *corev1.Service, port intstr.IntOrString) (*corev1.ServicePort, error) {
if svc == nil {
return nil, errors.New("service is not defined")
@ -427,6 +430,18 @@ func getServicePort(svc *corev1.Service, port intstr.IntOrString) (*corev1.Servi
return &corev1.ServicePort{Port: port.IntVal}, nil
}
func getNativeServiceAddress(service corev1.Service, svcPort corev1.ServicePort) (string, error) {
if service.Spec.ClusterIP == "None" {
return "", fmt.Errorf("no clusterIP on headless service: %s/%s", service.Namespace, service.Name)
}
if service.Spec.ClusterIP == "" {
return "", fmt.Errorf("no clusterIP found for service: %s/%s", service.Namespace, service.Name)
}
return net.JoinHostPort(service.Spec.ClusterIP, strconv.Itoa(int(svcPort.Port))), nil
}
func createPluginMiddleware(k8sClient Client, ns string, plugins map[string]apiextensionv1.JSON) (map[string]dynamic.PluginConf, error) {
if plugins == nil {
return nil, nil