ingress-nginx-helm/internal/ingress/annotations/opentracing/main.go
Ricardo Katz c5f348ea2e
Implement annotation validation (#9673)
* Add validation to all annotations

* Add annotation validation for fcgi

* Fix reviews and fcgi e2e

* Add flag to disable cross namespace validation

* Add risk, flag for validation, tests

* Add missing formating

* Enable validation by default on tests

* Test validation flag

* remove ajp from list

* Finalize validation changes

* Add validations to CI

* Update helm docs

* Fix code review

* Use a better name for annotation risk
2023-07-21 20:32:07 -07:00

113 lines
3.3 KiB
Go

/*
Copyright 2019 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 opentracing
import (
networking "k8s.io/api/networking/v1"
"k8s.io/ingress-nginx/internal/ingress/annotations/parser"
"k8s.io/ingress-nginx/internal/ingress/resolver"
)
const (
enableOpentracingAnnotation = "enable-opentracing"
opentracingTrustSpanAnnotation = "opentracing-trust-incoming-span"
)
var opentracingAnnotations = parser.Annotation{
Group: "opentracing",
Annotations: parser.AnnotationFields{
enableOpentracingAnnotation: {
Validator: parser.ValidateBool,
Scope: parser.AnnotationScopeLocation,
Risk: parser.AnnotationRiskLow,
Documentation: `This annotation defines if Opentracing collector should be enable for this location. Opentracing should
already be configured by Ingress administrator`,
},
opentracingTrustSpanAnnotation: {
Validator: parser.ValidateBool,
Scope: parser.AnnotationScopeLocation,
Risk: parser.AnnotationRiskLow,
Documentation: `This annotation enables or disables using spans from incoming requests as parent for created ones`,
},
},
}
type opentracing struct {
r resolver.Resolver
annotationConfig parser.Annotation
}
// Config contains the configuration to be used in the Ingress
type Config struct {
Enabled bool `json:"enabled"`
Set bool `json:"set"`
TrustEnabled bool `json:"trust-enabled"`
TrustSet bool `json:"trust-set"`
}
// Equal tests for equality between two Config types
func (bd1 *Config) Equal(bd2 *Config) bool {
if bd1.Set != bd2.Set {
return false
}
if bd1.Enabled != bd2.Enabled {
return false
}
if bd1.TrustSet != bd2.TrustSet {
return false
}
if bd1.TrustEnabled != bd2.TrustEnabled {
return false
}
return true
}
// NewParser creates a new serviceUpstream annotation parser
func NewParser(r resolver.Resolver) parser.IngressAnnotation {
return opentracing{
r: r,
annotationConfig: opentracingAnnotations,
}
}
func (s opentracing) Parse(ing *networking.Ingress) (interface{}, error) {
enabled, err := parser.GetBoolAnnotation(enableOpentracingAnnotation, ing, s.annotationConfig.Annotations)
if err != nil {
return &Config{}, nil
}
trustSpan, err := parser.GetBoolAnnotation(opentracingTrustSpanAnnotation, ing, s.annotationConfig.Annotations)
if err != nil {
return &Config{Set: true, Enabled: enabled}, nil
}
return &Config{Set: true, Enabled: enabled, TrustSet: true, TrustEnabled: trustSpan}, nil
}
func (s opentracing) GetDocumentation() parser.AnnotationFields {
return s.annotationConfig.Annotations
}
func (a opentracing) Validate(anns map[string]string) error {
maxrisk := parser.StringRiskToRisk(a.r.GetSecurityConfiguration().AnnotationsRiskLevel)
return parser.CheckAnnotationRisk(anns, maxrisk, opentracingAnnotations.Annotations)
}