Server-Side-Implementation

2025-12-29 16:42:49 +01:00
commit c9d0322177
20 changed files with 1539 additions and 0 deletions
--- a/main.go
+++ b/main.go
@ -0,0 +1,107 @@
+package main
+
+import (
+	"flag"
+	"log"
+	"net/http"
+	"path/filepath"
+
+	"connectrpc.com/connect"
+
+	"connectrpc.com/validate"
+	"git.kocoder.xyz/kocoder/portforwarder/api/types/v1alpha1"
+	clientV1alpha1 "git.kocoder.xyz/kocoder/portforwarder/clientset/v1alpha1"
+	"git.kocoder.xyz/kocoder/portforwarder/gen/portforwarding/portforwardingv1connect"
+	"git.kocoder.xyz/kocoder/portforwarder/portforwarding"
+	"k8s.io/client-go/kubernetes/scheme"
+	"k8s.io/client-go/tools/clientcmd"
+	"k8s.io/client-go/util/homedir"
+)
+
+func main() {
+	var kubeconfig *string
+	if home := homedir.HomeDir(); home != "" {
+		kubeconfig = flag.String("kubeconfig", filepath.Join(home, ".kube", "config"), "(optional) absolute path to the kubeconfig file")
+	} else {
+		kubeconfig = flag.String("kubeconfig", "", "absolute path to the kubeconfig file")
+	}
+	flag.Parse()
+
+	// use the current context in kubeconfig
+	config, err := clientcmd.BuildConfigFromFlags("", *kubeconfig)
+	if err != nil {
+		panic(err.Error())
+	}
+
+	err = v1alpha1.AddToScheme(scheme.Scheme)
+	if err != nil {
+		panic(err.Error())
+	}
+
+	client, err := clientV1alpha1.NewForConfig(config)
+	if err != nil {
+		panic(err)
+	}
+
+	const namespace = "default"
+
+	pf := portforwarding.NewPortforwardingService(client.Ingressroute(namespace), namespace, "external-db-svc", ".kocoder.xyz", "k3s-kocoder-xyz-tls")
+
+	mux := http.NewServeMux()
+	path, handler := portforwardingv1connect.NewPortForwardingServiceHandler(
+		pf,
+		connect.WithInterceptors(validate.NewInterceptor()),
+	)
+
+	mux.Handle(path, handler)
+	p := new(http.Protocols)
+	p.SetHTTP1(true)
+	// Use h2c so we can serve HTTP/2 without TLS.
+	p.SetUnencryptedHTTP2(true)
+	s := http.Server{
+		Addr:      "localhost:8080",
+		Handler:   mux,
+		Protocols: p,
+	}
+	err = s.ListenAndServe()
+	log.Fatal(err)
+
+	// ir := &v1alpha1.IngressRoute{
+	// 	ObjectMeta: v1.ObjectMeta{
+	// 		Name: "beary-times",
+	// 	},
+	// 	Spec: v1alpha1.IngressRouteSpec{
+	// 		EntryPoints: []string{"websecure", "web"},
+	// 		Routes: []v1alpha1.Route{
+	// 			{
+	// 				Kind:  "Rule",
+	// 				Match: "Host(`beary-times.kocoder.xyz`)",
+	// 				Services: []v1alpha1.Service{
+	// 					{
+	// 						Kind:               "Service",
+	// 						Name:               "external-db-svc",
+	// 						Namespace:          "default",
+	// 						PassHostHeader:     false,
+	// 						Port:               63419,
+	// 						ResponseForwarding: v1alpha1.ResponseForwarding{FlushInterval: "10ms"},
+	// 						Scheme:             "https",
+	// 						Sticky:             v1alpha1.Sticky{Cookie: v1alpha1.Cookie{HttpOnly: false, Name: "", Secure: false}},
+	// 						Strategy:           "wrr",
+	// 						Weight:             0,
+	// 					},
+	// 				},
+	// 				Middlewares:   []v1alpha1.Middleware{},
+	// 				Observability: v1alpha1.Observability{AccessLogs: true, Metrics: true, Tracing: true},
+	// 				Priority:      10,
+	// 			},
+	// 		},
+	// 	},
+	// }
+
+	// ir, err = client.Ingressroute("default").Create(context.TODO(), ir)
+	// if err != nil {
+	// 	panic(err)
+	// }
+
+	// client.Ingressroute("default").Delete(context.TODO(), "hannes", v1.DeleteOptions{})
+}