Follow kubernetes APIs directory structure (#1497)

pkg/apis/core/v1/doc.go

@@ -0,0 +1,34 @@
+/*
+Copyright 2018 The Fission Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// This file tells deepcopy-gen to generate deepcopy methods for all structs in the package.
+// For more details, please visit https://blog.openshift.com/kubernetes-deep-dive-code-generation-customresources/
+
+// +k8s:deepcopy-gen=package
+// +k8s:defaulter-gen=TypeMeta
+// +groupName=fission.io
+// +groupGoName=core
+//
+// In order not to break the backward compatibility, keep coreV1 types stay
+// at "fission.io" group instead of moving them to "core.fission.io".
+// If the value of group is different from the one we register, the
+// CRD client will not be able to get anything from the API server.
+package v1
+
+const (
+	CRD_VERSION          = "fission.io/v1"
+	CRD_NAME_ENVIRONMENT = "Environment"
+)