fix(): k8s client call and drop cosign for now

internal/k8s.go

@@ -6,10 +6,16 @@ import (
 	"fmt"
 	"html/template"
 
+	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/client-go/kubernetes/scheme"
 	"k8s.io/client-go/rest"
 )
 
+var CILIUM_GROUP_VERSION = schema.GroupVersion{
+	Group:   "cilium.io",
+	Version: "v2alpha1",
+}
+
 var IP_POOL_TEMPLATE = `
 {
     "apiVersion": "cilium.io/v2alpha1",
@@ -83,6 +89,7 @@ func createRestClient() (*rest.RESTClient, error) {
 
 	k8s_config.APIPath = "/apis"
 	k8s_config.NegotiatedSerializer = scheme.Codecs.WithoutConversion()
+	k8s_config.GroupVersion = &CILIUM_GROUP_VERSION
 
 	routeclient, err := rest.RESTClientFor(k8s_config)