/
main.go
83 lines (66 loc) · 1.95 KB
/
main.go
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package main
import (
"flag"
"fmt"
"github.com/aojea/networking-controllers/pkg/services"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/selection"
"k8s.io/client-go/informers"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/tools/clientcmd"
"k8s.io/klog/v2"
)
type FakeLoadBalancer struct{}
func (f FakeLoadBalancer) Apply(lb services.LB) error {
fmt.Printf("Apply LB %+v\n", lb)
return nil
}
func (f FakeLoadBalancer) Remove(lb services.LB) error {
fmt.Printf("Remove LB %+v\n", lb)
return nil
}
func main() {
var kubeconfig string
var master string
flag.StringVar(&kubeconfig, "kubeconfig", "", "absolute path to the kubeconfig file")
flag.StringVar(&master, "master", "", "master url")
flag.Parse()
// creates the connection
config, err := clientcmd.BuildConfigFromFlags(master, kubeconfig)
if err != nil {
klog.Fatal(err)
}
// creates the clientset
clientset, err := kubernetes.NewForConfig(config)
if err != nil {
klog.Fatal(err)
}
noProxyName, err := labels.NewRequirement("service.kubernetes.io/service-proxy-name", selection.DoesNotExist, nil)
if err != nil {
klog.Fatal(err)
}
noHeadlessEndpoints, err := labels.NewRequirement(v1.IsHeadlessService, selection.DoesNotExist, nil)
if err != nil {
klog.Fatal(err)
}
labelSelector := labels.NewSelector()
labelSelector = labelSelector.Add(*noProxyName, *noHeadlessEndpoints)
informersFactory := informers.NewSharedInformerFactoryWithOptions(clientset, 0,
informers.WithTweakListOptions(func(options *metav1.ListOptions) {
options.LabelSelector = labelSelector.String()
}))
svcController := services.NewController(
clientset,
informersFactory.Core().V1().Services(),
informersFactory.Discovery().V1().EndpointSlices(),
FakeLoadBalancer{},
)
stop := make(chan struct{})
defer close(stop)
informersFactory.Start(stop)
go svcController.Run(1, stop)
// Wait forever
select {}
}