Don't error if the CRD is already present.

Fixes #342
Closes #457

Signed-off-by: Pires <pjpires@gmail.com>

Author: pires

pkg/envtest/crd.go

@@ -27,6 +27,8 @@ import (
 
 	apiextensionsv1beta1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1beta1"
 	"k8s.io/apiextensions-apiserver/pkg/client/clientset/clientset"
+	apierrors "k8s.io/apimachinery/pkg/api/errors"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/util/sets"
 	"k8s.io/apimachinery/pkg/util/wait"
@@ -190,8 +192,17 @@ func CreateCRDs(config *rest.Config, crds []*apiextensionsv1beta1.CustomResource
 	// Create each CRD
 	for _, crd := range crds {
 		log.V(1).Info("installing CRD", "crd", crd.Name)
-		if _, err := cs.ApiextensionsV1beta1().CustomResourceDefinitions().Create(crd); err != nil {
-			return err
+		var err error
+		if _, err = cs.ApiextensionsV1beta1().CustomResourceDefinitions().Get(crd.Name, metav1.GetOptions{}); err != nil {
+			if apierrors.IsNotFound(err) {
+				_, err = cs.ApiextensionsV1beta1().CustomResourceDefinitions().Create(crd)
+			}
+			if apierrors.IsAlreadyExists(err) {
+				_, err = cs.ApiextensionsV1beta1().CustomResourceDefinitions().Update(crd)
+			}
+			if err != nil {
+				return err
+			}
 		}
 	}
 	return nil