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stresschaos_webhook.go
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stresschaos_webhook.go
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// Copyright 2021 Chaos Mesh 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 v1alpha1
import (
"fmt"
"reflect"
"strconv"
"github.com/docker/go-units"
"github.com/pkg/errors"
"k8s.io/apimachinery/pkg/util/validation/field"
"github.com/chaos-mesh/chaos-mesh/api/v1alpha1/genericwebhook"
)
// Validate validates the scheduler and duration
func (in *StressChaosSpec) Validate(root interface{}, path *field.Path) field.ErrorList {
if len(in.StressngStressors) == 0 && in.Stressors == nil {
return field.ErrorList{
field.Invalid(path, in, "missing stressors"),
}
}
return nil
}
// Validate validates whether the Stressors are all well defined
func (in *Stressors) Validate(root interface{}, path *field.Path) field.ErrorList {
if in == nil {
return nil
}
if in.MemoryStressor == nil && in.CPUStressor == nil {
return field.ErrorList{
field.Invalid(path, in, "missing stressors"),
}
}
return nil
}
type Bytes string
func (in *Bytes) Validate(root interface{}, path *field.Path) field.ErrorList {
packError := func(err error) field.ErrorList {
return field.ErrorList{
field.Invalid(path, in, fmt.Sprintf("incorrect bytes format: %s", err.Error())),
}
}
// in cannot be nil
size := *in
length := len(size)
if length == 0 {
return nil
}
var err error
if size[length-1] == '%' {
var percent int
percent, err = strconv.Atoi(string(size)[:length-1])
if err != nil {
return packError(err)
}
if percent > 100 || percent < 0 {
err = errors.New("illegal proportion")
return packError(err)
}
} else {
_, err = units.FromHumanSize(string(size))
if err != nil {
return packError(err)
}
}
return nil
}
// Validate validates whether the Stressor is well defined
func (in *Stressor) Validate(parent *field.Path) field.ErrorList {
errs := field.ErrorList{}
if in.Workers <= 0 {
errs = append(errs, field.Invalid(parent, in, "workers should always be positive"))
}
return errs
}
func init() {
genericwebhook.Register("Bytes", reflect.PtrTo(reflect.TypeOf(Bytes(""))))
}