| /* |
| Copyright 2018 The Kubernetes 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. |
| */ |
| |
| package converter |
| |
| import ( |
| "fmt" |
| "strings" |
| |
| "k8s.io/klog" |
| |
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" |
| "k8s.io/apimachinery/pkg/apis/meta/v1/unstructured" |
| ) |
| |
| func convertExampleCRD(Object *unstructured.Unstructured, toVersion string) (*unstructured.Unstructured, metav1.Status) { |
| klog.V(2).Info("converting crd") |
| |
| convertedObject := Object.DeepCopy() |
| fromVersion := Object.GetAPIVersion() |
| |
| if toVersion == fromVersion { |
| return nil, statusErrorWithMessage("conversion from a version to itself should not call the webhook: %s", toVersion) |
| } |
| |
| switch Object.GetAPIVersion() { |
| case "stable.example.com/v1": |
| switch toVersion { |
| case "stable.example.com/v2": |
| hostPort, ok := convertedObject.Object["hostPort"] |
| if ok { |
| delete(convertedObject.Object, "hostPort") |
| parts := strings.Split(hostPort.(string), ":") |
| if len(parts) != 2 { |
| return nil, statusErrorWithMessage("invalid hostPort value `%v`", hostPort) |
| } |
| convertedObject.Object["host"] = parts[0] |
| convertedObject.Object["port"] = parts[1] |
| } |
| default: |
| return nil, statusErrorWithMessage("unexpected conversion version %q", toVersion) |
| } |
| case "stable.example.com/v2": |
| switch toVersion { |
| case "stable.example.com/v1": |
| host, hasHost := convertedObject.Object["host"] |
| port, hasPort := convertedObject.Object["port"] |
| if hasHost || hasPort { |
| if !hasHost { |
| host = "" |
| } |
| if !hasPort { |
| port = "" |
| } |
| convertedObject.Object["hostPort"] = fmt.Sprintf("%s:%s", host, port) |
| delete(convertedObject.Object, "host") |
| delete(convertedObject.Object, "port") |
| } |
| default: |
| return nil, statusErrorWithMessage("unexpected conversion version %q", toVersion) |
| } |
| default: |
| return nil, statusErrorWithMessage("unexpected conversion version %q", fromVersion) |
| } |
| return convertedObject, statusSucceed() |
| } |