feat: add network check (#143)

controllers/rainbondcluster_controller.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"net"
 	"os"
+	"os/exec"
 	"strings"
 	"time"
 
@@ -51,7 +52,13 @@ type RainbondClusterReconciler struct {
 // - https://pkg.go.dev/sigs.k8s.io/[email protected]/pkg/reconcile
 func (r *RainbondClusterReconciler) Reconcile(ctx context.Context, request ctrl.Request) (ctrl.Result, error) {
 	reqLogger := r.Log.WithValues("rainbondcluster", request.NamespacedName)
-
+	cmdOne := exec.Command("ping", "registry.cn-hangzhou.aliyuncs.com", "-c", "1", "-W", "5")
+	errOne := cmdOne.Run()
+	cmdTwo := exec.Command("curl", "--connect-timeout", "1", "docker.io")
+	errTwo := cmdTwo.Run()
+	if errOne != nil && errTwo != nil {
+		return reconcile.Result{}, fmt.Errorf("外部网络不可用")
+	}
 	// Fetch the RainbondCluster instance
 	rainbondcluster := &rainbondv1alpha1.RainbondCluster{}
 	err := r.Get(ctx, request.NamespacedName, rainbondcluster)