fix(validation): Fix CRD v1beta int-float conversion error

During bundle content validation, manifest files are converted to
`unstructured` type and then convert back to CRD type which causes
conversion error between int to float. Shouldn't use `unstructured`
type as an intermediate type.

Signed-off-by: Vu Dinh <[email protected]>

Author: dinhxuanvu

pkg/lib/bundle/testdata/validate/valid_bundle/manifests/etcdclusters.etcd.database.coreos.com.crd.yaml

@@ -14,3 +14,13 @@ spec:
     singular: etcdcluster
   scope: Namespaced
   version: v1beta2
+  validation:
+    openAPIV3Schema:
+      properties:
+        spec:
+          type: object
+          properties:
+            test:
+              type: integer
+              minimum: 1
+              maximum: 32767

pkg/lib/bundle/validate.go

@@ -313,10 +313,11 @@ func (i imageValidator) ValidateBundleContent(manifestDir string) error {
 				}
 			}
 		} else if gvk.Kind == CRDKind {
+			dec := k8syaml.NewYAMLOrJSONDecoder(strings.NewReader(string(data)), 30)
 			switch gv := gvk.GroupVersion().String(); gv {
 			case v1CRDapiVersion:
 				crd := &apiextensionsv1.CustomResourceDefinition{}
-				err := runtime.DefaultUnstructuredConverter.FromUnstructured(k8sFile.Object, crd)
+				err := dec.Decode(crd)
 				if err != nil {
 					validationErrors = append(validationErrors, err)
 					continue
@@ -330,7 +331,7 @@ func (i imageValidator) ValidateBundleContent(manifestDir string) error {
 				}
 			case v1beta1CRDapiVersion:
 				crd := &apiextensionsv1beta1.CustomResourceDefinition{}
-				err := runtime.DefaultUnstructuredConverter.FromUnstructured(k8sFile.Object, crd)
+				err := dec.Decode(crd)
 				if err != nil {
 					validationErrors = append(validationErrors, err)
 					continue