Initial commit

vendor/sigs.k8s.io/controller-runtime/pkg/webhook/admission/response.go

@@ -0,0 +1,70 @@
+/*
+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 admission
+
+import (
+	"net/http"
+
+	admissionv1beta1 "k8s.io/api/admission/v1beta1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	"sigs.k8s.io/controller-runtime/pkg/patch"
+	"sigs.k8s.io/controller-runtime/pkg/webhook/admission/types"
+)
+
+// ErrorResponse creates a new Response for error-handling a request.
+func ErrorResponse(code int32, err error) types.Response {
+	return types.Response{
+		Response: &admissionv1beta1.AdmissionResponse{
+			Allowed: false,
+			Result: &metav1.Status{
+				Code:    code,
+				Message: err.Error(),
+			},
+		},
+	}
+}
+
+// ValidationResponse returns a response for admitting a request.
+func ValidationResponse(allowed bool, reason string) types.Response {
+	resp := types.Response{
+		Response: &admissionv1beta1.AdmissionResponse{
+			Allowed: allowed,
+		},
+	}
+	if len(reason) > 0 {
+		resp.Response.Result = &metav1.Status{
+			Reason: metav1.StatusReason(reason),
+		}
+	}
+	return resp
+}
+
+// PatchResponse returns a new response with json patch.
+func PatchResponse(original, current runtime.Object) types.Response {
+	patches, err := patch.NewJSONPatch(original, current)
+	if err != nil {
+		return ErrorResponse(http.StatusInternalServerError, err)
+	}
+	return types.Response{
+		Patches: patches,
+		Response: &admissionv1beta1.AdmissionResponse{
+			Allowed:   true,
+			PatchType: func() *admissionv1beta1.PatchType { pt := admissionv1beta1.PatchTypeJSONPatch; return &pt }(),
+		},
+	}
+}