Merge pull request #253 from MbolotSuse/schema-less

Handle Schema-less CRDs

pkg/schema/definitions/fixtures_test.go

@@ -63,6 +63,26 @@ spec:
                     nullable: true
     served: true
     storage: true
+---
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  name: schemaless.management.cattle.io
+spec:
+  conversion:
+    strategy: None
+  group: management.cattle.io
+  names:
+    kind: Schemaless
+    listKind: SchemalessList
+    plural: schemalese
+    singular: schemaless
+  scope: Cluster
+  preserveUnkownFields: true
+  versions:
+  - name: v2
+    served: true
+    storage: true
 `
 )
 
@@ -346,6 +366,35 @@ definitions:
     - group: "management.cattle.io"
       version: "v2"
       kind: "Nullable"
+  io.cattle.management.v2.Schemaless:
+    description: "this kind has no schema"
+    type: "object"
+    properties:
+      apiVersion:
+        description: "The APIVersion of this resource"
+        type: "string"
+      kind:
+        description: "The kind"
+        type: "string"
+      metadata:
+        description: "The metadata"
+        $ref: "#/definitions/io.k8s.apimachinery.pkg.apis.meta.v1.ObjectMeta"
+      spec:
+        description: "The spec for the resource"
+        type: "object"
+        required:
+        - "name"
+        properties:
+          name:
+            description: "The name of the resource"
+            type: "string"
+          notRequired:
+            description: "Some field that isn't required"
+            type: "boolean"
+    x-kubernetes-group-version-kind:
+    - group: "management.cattle.io"
+      version: "v2"
+      kind: "Schemaless"
   io.cattle.management.NotAKind:
     type: "string"
     description: "Some string which isn't a kind"

pkg/schema/definitions/handler.go

@@ -223,7 +223,9 @@ func listGVKModels(models proto.Models, groups *metav1.APIGroupList, crdCache wa
 				Version: version.Name,
 				Kind:    crd.Spec.Names.Kind,
 			}
-			gvkToCRD[gvk] = version.Schema.OpenAPIV3Schema
+			if version.Schema != nil {
+				gvkToCRD[gvk] = version.Schema.OpenAPIV3Schema
+			}
 		}
 	}
 

pkg/schema/definitions/handler_test.go

@@ -34,7 +34,7 @@ func TestRefresh(t *testing.T) {
 	require.NotNil(t, userAttributesV2)
 
 	nullableV2 := getJSONSchema(crds, "nullable.management.cattle.io", "v2")
-	require.NotNil(t, userAttributesV2)
+	require.NotNil(t, nullableV2)
 
 	tests := []struct {
 		name             string
@@ -85,6 +85,11 @@ func TestRefresh(t *testing.T) {
 					Schema:    defaultModels.LookupModel("io.cattle.management.v2.Nullable"),
 					CRD:       nullableV2,
 				},
+				"management.cattle.io.schemaless": {
+					ModelName: "io.cattle.management.v2.Schemaless",
+					Schema:    defaultModels.LookupModel("io.cattle.management.v2.Schemaless"),
+					CRD:       nil,
+				},
 			},
 		},
 		{
@@ -147,6 +152,11 @@ func TestRefresh(t *testing.T) {
 					Schema:    defaultModels.LookupModel("io.cattle.management.v2.Nullable"),
 					CRD:       nullableV2,
 				},
+				"management.cattle.io.schemaless": {
+					ModelName: "io.cattle.management.v2.Schemaless",
+					Schema:    defaultModels.LookupModel("io.cattle.management.v2.Schemaless"),
+					CRD:       nil,
+				},
 			},
 		},
 	}