386486e969
Add a feature which allows traffic to be mirrored to additional backends. This is useful for testing how requests will behave on different "test" backends. See https://nginx.org/en/docs/http/ngx_http_mirror_module.html
58 lines
1.6 KiB
Go
58 lines
1.6 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 mirror
|
|
|
|
import (
|
|
networking "k8s.io/api/networking/v1beta1"
|
|
|
|
"k8s.io/ingress-nginx/internal/ingress/annotations/parser"
|
|
"k8s.io/ingress-nginx/internal/ingress/resolver"
|
|
)
|
|
|
|
// Config returns the mirror to use in a given location
|
|
type Config struct {
|
|
URI string `json:"uri"`
|
|
RequestBody string `json:"requestBody"`
|
|
}
|
|
|
|
type mirror struct {
|
|
r resolver.Resolver
|
|
}
|
|
|
|
// NewParser creates a new mirror configuration annotation parser
|
|
func NewParser(r resolver.Resolver) parser.IngressAnnotation {
|
|
return mirror{r}
|
|
}
|
|
|
|
// ParseAnnotations parses the annotations contained in the ingress
|
|
// rule used to configure mirror
|
|
func (a mirror) Parse(ing *networking.Ingress) (interface{}, error) {
|
|
config := &Config{}
|
|
var err error
|
|
|
|
config.URI, err = parser.GetStringAnnotation("mirror-uri", ing)
|
|
if err != nil {
|
|
config.URI = ""
|
|
}
|
|
|
|
config.RequestBody, err = parser.GetStringAnnotation("mirror-request-body", ing)
|
|
if err != nil || config.RequestBody != "off" {
|
|
config.RequestBody = "on"
|
|
}
|
|
|
|
return config, nil
|
|
}
|