mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-11-04 07:49:35 +00:00
43 lines
1.5 KiB
Go
43 lines
1.5 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 framework
|
|
|
|
import (
|
|
"fmt"
|
|
"regexp"
|
|
|
|
"k8s.io/kubernetes/pkg/api/validation"
|
|
validation_util "k8s.io/kubernetes/pkg/util/validation"
|
|
)
|
|
|
|
// GetValidDNSSubdomainName massages the given name to be a valid dns subdomain name.
|
|
// Most resources (such as secrets, clusters) require the names to be valid dns subdomain.
|
|
// This is a generic function (not specific to federation). Should be moved to a more generic location if others want to use it.
|
|
func GetValidDNSSubdomainName(name string) (string, error) {
|
|
// "_" are not allowed. Replace them by "-".
|
|
name = regexp.MustCompile("_").ReplaceAllLiteralString(name, "-")
|
|
maxLength := validation_util.DNS1123SubdomainMaxLength
|
|
if len(name) > maxLength {
|
|
name = name[0 : maxLength-1]
|
|
}
|
|
// Verify that name now passes the validation.
|
|
if errors := validation.NameIsDNSSubdomain(name, false); len(errors) != 0 {
|
|
return "", fmt.Errorf("errors in converting name to a valid DNS subdomain %s", errors)
|
|
}
|
|
return name, nil
|
|
}
|