/
kubernetes.go
78 lines (67 loc) · 2.03 KB
/
kubernetes.go
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/*
* Tencent is pleased to support the open source community by making TKEStack
* available.
*
* Copyright (C) 2012-2019 Tencent. All Rights Reserved.
*
* 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
*
* https://opensource.org/licenses/Apache-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 OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
package validation
import (
"context"
"fmt"
"reflect"
"github.com/thoas/go-funk"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/validation/field"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"
)
// ValidateEnum validates a given enum.
// nil or nil pointer is valid.
// zero value is invalid.
func ValidateEnum(value interface{}, fldPath *field.Path, values interface{}) field.ErrorList {
allErrs := field.ErrorList{}
if value == nil {
return allErrs
}
validValuesString := funk.Map(values, func(i interface{}) string {
return fmt.Sprintf("%v", i)
}).([]string)
v := reflect.ValueOf(value)
if v.Kind() == reflect.Ptr {
if reflect.ValueOf(value).IsNil() {
return allErrs
}
} else {
if v.IsZero() {
allErrs = append(allErrs, field.Required(fldPath, fmt.Sprintf("valid values: %v", validValuesString)))
return allErrs
}
}
if !funk.Contains(values, value) {
allErrs = append(allErrs, field.NotSupported(fldPath, value, validValuesString))
}
return allErrs
}
// ValidateRESTConfig validates a given rest.Config.
func ValidateRESTConfig(ctx context.Context, config *rest.Config) error {
clientset, err := kubernetes.NewForConfig(config)
if err != nil {
return err
}
_, err = clientset.CoreV1().Namespaces().List(ctx, metav1.ListOptions{})
if err != nil {
return err
}
return nil
}