42b6b374cf
https://github.com/kubernetes/enhancements/blob/master/keps/sig-storage/177-volume-snapshot/tighten-validation-webhook-crd.md 1. Ratcheting validation webhook server image 2. Controller labels invalid objects 3. Unit tests for webhook 4. Deployment README and example deployment method with certs 5. Update top-level README Racheting validation: 1. webhook is strict on create 2. webhook is strict on updates where the existing object passes strict validation 3. webhook is relaxed on updates where the existing object fails strict validation (allows finalizer removal, status update, deletion, etc) Additionally the validating wehook server will perform immutability checks on scenario 2 above.
87 lines
2.3 KiB
Go
87 lines
2.3 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package fuzzer
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import (
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"reflect"
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)
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// ValueFuzz recursively changes all basic type values in an object. Any kind of references will not
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// be touch, i.e. the addresses of slices, maps, pointers will stay unchanged.
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func ValueFuzz(obj interface{}) {
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valueFuzz(reflect.ValueOf(obj))
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}
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func valueFuzz(obj reflect.Value) {
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switch obj.Kind() {
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case reflect.Array:
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for i := 0; i < obj.Len(); i++ {
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valueFuzz(obj.Index(i))
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}
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case reflect.Slice:
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if obj.IsNil() {
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// TODO: set non-nil value
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} else {
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for i := 0; i < obj.Len(); i++ {
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valueFuzz(obj.Index(i))
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}
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}
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case reflect.Interface, reflect.Ptr:
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if obj.IsNil() {
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// TODO: set non-nil value
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} else {
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valueFuzz(obj.Elem())
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}
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case reflect.Struct:
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for i, n := 0, obj.NumField(); i < n; i++ {
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valueFuzz(obj.Field(i))
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}
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case reflect.Map:
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if obj.IsNil() {
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// TODO: set non-nil value
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} else {
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for _, k := range obj.MapKeys() {
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// map values are not addressable. We need a copy.
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v := obj.MapIndex(k)
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copy := reflect.New(v.Type())
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copy.Elem().Set(v)
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valueFuzz(copy.Elem())
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obj.SetMapIndex(k, copy.Elem())
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}
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// TODO: set some new value
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}
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case reflect.Func: // ignore, we don't have function types in our API
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default:
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if !obj.CanSet() {
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return
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}
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switch obj.Kind() {
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case reflect.String:
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obj.SetString(obj.String() + "x")
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case reflect.Bool:
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obj.SetBool(!obj.Bool())
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case reflect.Float32, reflect.Float64:
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obj.SetFloat(obj.Float()*2.0 + 1.0)
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case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
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obj.SetInt(obj.Int() + 1)
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case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
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obj.SetUint(obj.Uint() + 1)
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default:
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}
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}
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}
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