diff options
Diffstat (limited to 'vendor/k8s.io/apimachinery/pkg/api/validation/generic.go')
-rw-r--r-- | vendor/k8s.io/apimachinery/pkg/api/validation/generic.go | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/vendor/k8s.io/apimachinery/pkg/api/validation/generic.go b/vendor/k8s.io/apimachinery/pkg/api/validation/generic.go new file mode 100644 index 000000000..348cdc087 --- /dev/null +++ b/vendor/k8s.io/apimachinery/pkg/api/validation/generic.go @@ -0,0 +1,85 @@ +/* +Copyright 2014 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 validation + +import ( + "strings" + + "k8s.io/apimachinery/pkg/util/validation" + "k8s.io/apimachinery/pkg/util/validation/field" +) + +const IsNegativeErrorMsg string = `must be greater than or equal to 0` + +// ValidateNameFunc validates that the provided name is valid for a given resource type. +// Not all resources have the same validation rules for names. Prefix is true +// if the name will have a value appended to it. If the name is not valid, +// this returns a list of descriptions of individual characteristics of the +// value that were not valid. Otherwise this returns an empty list or nil. +type ValidateNameFunc func(name string, prefix bool) []string + +// NameIsDNSSubdomain is a ValidateNameFunc for names that must be a DNS subdomain. +func NameIsDNSSubdomain(name string, prefix bool) []string { + if prefix { + name = maskTrailingDash(name) + } + return validation.IsDNS1123Subdomain(name) +} + +// NameIsDNSLabel is a ValidateNameFunc for names that must be a DNS 1123 label. +func NameIsDNSLabel(name string, prefix bool) []string { + if prefix { + name = maskTrailingDash(name) + } + return validation.IsDNS1123Label(name) +} + +// NameIsDNS1035Label is a ValidateNameFunc for names that must be a DNS 952 label. +func NameIsDNS1035Label(name string, prefix bool) []string { + if prefix { + name = maskTrailingDash(name) + } + return validation.IsDNS1035Label(name) +} + +// ValidateNamespaceName can be used to check whether the given namespace name is valid. +// Prefix indicates this name will be used as part of generation, in which case +// trailing dashes are allowed. +var ValidateNamespaceName = NameIsDNSLabel + +// ValidateServiceAccountName can be used to check whether the given service account name is valid. +// Prefix indicates this name will be used as part of generation, in which case +// trailing dashes are allowed. +var ValidateServiceAccountName = NameIsDNSSubdomain + +// maskTrailingDash replaces the final character of a string with a subdomain safe +// value if is a dash. +func maskTrailingDash(name string) string { + if strings.HasSuffix(name, "-") { + return name[:len(name)-2] + "a" + } + return name +} + +// Validates that given value is not negative. +func ValidateNonnegativeField(value int64, fldPath *field.Path) field.ErrorList { + allErrs := field.ErrorList{} + if value < 0 { + allErrs = append(allErrs, field.Invalid(fldPath, value, IsNegativeErrorMsg)) + } + return allErrs +} |