mirror of
https://github.com/kubernetes-sigs/kustomize.git
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106 lines
3.0 KiB
Go
106 lines
3.0 KiB
Go
// Copyright 2019 The Kubernetes Authors.
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// SPDX-License-Identifier: Apache-2.0
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// Package validator provides functions to validate labels, annotations,
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// namespaces and configmap/secret keys using apimachinery functions.
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package validator
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import (
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"errors"
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"fmt"
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"strings"
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apivalidation "k8s.io/apimachinery/pkg/api/validation"
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v1validation "k8s.io/apimachinery/pkg/apis/meta/v1/validation"
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"k8s.io/apimachinery/pkg/util/validation"
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"k8s.io/apimachinery/pkg/util/validation/field"
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"sigs.k8s.io/kustomize/api/ifc"
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)
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// KustValidator validates Labels and annotations by apimachinery
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type KustValidator struct{}
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var _ ifc.Validator = (*KustValidator)(nil)
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// NewKustValidator returns a KustValidator object
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func NewKustValidator() *KustValidator {
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return &KustValidator{}
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}
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func (v *KustValidator) ErrIfInvalidKey(k string) error {
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if errs := validation.IsConfigMapKey(k); len(errs) != 0 {
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return fmt.Errorf(
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"%q is not a valid key name: %s",
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k, strings.Join(errs, ";"))
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}
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return nil
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}
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func (v *KustValidator) IsEnvVarName(k string) error {
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if errs := validation.IsEnvVarName(k); len(errs) != 0 {
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return fmt.Errorf(
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"%q is not a valid key name: %s",
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k, strings.Join(errs, ";"))
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}
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return nil
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}
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// MakeAnnotationValidator returns a MapValidatorFunc using apimachinery.
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func (v *KustValidator) MakeAnnotationValidator() func(map[string]string) error {
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return func(x map[string]string) error {
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errs := apivalidation.ValidateAnnotations(x, field.NewPath("field"))
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if len(errs) > 0 {
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return errors.New(errs.ToAggregate().Error())
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}
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return nil
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}
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}
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// MakeAnnotationNameValidator returns a MapValidatorFunc using apimachinery.
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func (v *KustValidator) MakeAnnotationNameValidator() func([]string) error {
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return func(x []string) error {
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errs := field.ErrorList{}
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fldPath := field.NewPath("field")
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for _, k := range x {
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for _, msg := range validation.IsQualifiedName(strings.ToLower(k)) {
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errs = append(errs, field.Invalid(fldPath, k, msg))
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}
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}
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if len(errs) > 0 {
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return errors.New(errs.ToAggregate().Error())
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}
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return nil
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}
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}
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// MakeLabelValidator returns a MapValidatorFunc using apimachinery.
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func (v *KustValidator) MakeLabelValidator() func(map[string]string) error {
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return func(x map[string]string) error {
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errs := v1validation.ValidateLabels(x, field.NewPath("field"))
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if len(errs) > 0 {
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return errors.New(errs.ToAggregate().Error())
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}
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return nil
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}
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}
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// MakeLabelNameValidator returns a ArrayValidatorFunc using apimachinery.
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func (v *KustValidator) MakeLabelNameValidator() func([]string) error {
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return func(x []string) error {
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errs := field.ErrorList{}
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fldPath := field.NewPath("field")
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for _, k := range x {
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errs = append(errs, v1validation.ValidateLabelName(k, fldPath)...)
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}
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if len(errs) > 0 {
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return errors.New(errs.ToAggregate().Error())
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}
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return nil
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}
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}
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// ValidateNamespace validates a string is a valid namespace using apimachinery.
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func (v *KustValidator) ValidateNamespace(s string) []string {
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return validation.IsDNS1123Label(s)
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}
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