mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-10 08:20:23 +00:00
126 lines
3.4 KiB
Go
126 lines
3.4 KiB
Go
/*
|
|
Copyright 2016 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 kubectl
|
|
|
|
import (
|
|
"fmt"
|
|
"strings"
|
|
|
|
"k8s.io/api/core/v1"
|
|
"k8s.io/apimachinery/pkg/runtime"
|
|
)
|
|
|
|
// ResourceQuotaGeneratorV1 supports stable generation of a resource quota
|
|
type ResourceQuotaGeneratorV1 struct {
|
|
// The name of a quota object.
|
|
Name string
|
|
|
|
// The hard resource limit string before parsing.
|
|
Hard string
|
|
|
|
// The scopes of a quota object before parsing.
|
|
Scopes string
|
|
}
|
|
|
|
// ParamNames returns the set of supported input parameters when using the parameter injection generator pattern
|
|
func (g ResourceQuotaGeneratorV1) ParamNames() []GeneratorParam {
|
|
return []GeneratorParam{
|
|
{"name", true},
|
|
{"hard", true},
|
|
{"scopes", false},
|
|
}
|
|
}
|
|
|
|
// Ensure it supports the generator pattern that uses parameter injection
|
|
var _ Generator = &ResourceQuotaGeneratorV1{}
|
|
|
|
// Ensure it supports the generator pattern that uses parameters specified during construction
|
|
var _ StructuredGenerator = &ResourceQuotaGeneratorV1{}
|
|
|
|
func (g ResourceQuotaGeneratorV1) Generate(genericParams map[string]interface{}) (runtime.Object, error) {
|
|
err := ValidateParams(g.ParamNames(), genericParams)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
params := map[string]string{}
|
|
for key, value := range genericParams {
|
|
strVal, isString := value.(string)
|
|
if !isString {
|
|
return nil, fmt.Errorf("expected string, saw %v for '%s'", value, key)
|
|
}
|
|
params[key] = strVal
|
|
}
|
|
|
|
delegate := &ResourceQuotaGeneratorV1{}
|
|
delegate.Name = params["name"]
|
|
delegate.Hard = params["hard"]
|
|
delegate.Scopes = params["scopes"]
|
|
return delegate.StructuredGenerate()
|
|
}
|
|
|
|
// StructuredGenerate outputs a ResourceQuota object using the configured fields
|
|
func (g *ResourceQuotaGeneratorV1) StructuredGenerate() (runtime.Object, error) {
|
|
if err := g.validate(); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
resourceList, err := populateResourceListV1(g.Hard)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
scopes, err := parseScopes(g.Scopes)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
resourceQuota := &v1.ResourceQuota{}
|
|
resourceQuota.Name = g.Name
|
|
resourceQuota.Spec.Hard = resourceList
|
|
resourceQuota.Spec.Scopes = scopes
|
|
return resourceQuota, nil
|
|
}
|
|
|
|
// validate validates required fields are set to support structured generation
|
|
func (r *ResourceQuotaGeneratorV1) validate() error {
|
|
if len(r.Name) == 0 {
|
|
return fmt.Errorf("name must be specified")
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func parseScopes(spec string) ([]v1.ResourceQuotaScope, error) {
|
|
// empty input gets a nil response to preserve generator test expected behaviors
|
|
if spec == "" {
|
|
return nil, nil
|
|
}
|
|
|
|
scopes := strings.Split(spec, ",")
|
|
result := make([]v1.ResourceQuotaScope, 0, len(scopes))
|
|
for _, scope := range scopes {
|
|
// intentionally do not verify the scope against the valid scope list. This is done by the apiserver anyway.
|
|
|
|
if scope == "" {
|
|
return nil, fmt.Errorf("invalid resource quota scope \"\"")
|
|
}
|
|
|
|
result = append(result, v1.ResourceQuotaScope(scope))
|
|
}
|
|
return result, nil
|
|
}
|