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Introduce an upstream-hash-by annotation to support consistent hashing by nginx variable or text

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This commit is contained in:
Lourens Naudé 2017-09-30 22:29:16 +01:00
parent 7ffa0ae265
commit d607cf6dd7
13 changed files with 166 additions and 0 deletions
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8
pkg/ingress/controller/annotations.go
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@ -41,6 +41,7 @@ import (
"k8s.io/ingress-nginx/pkg/ingress/annotations/sessionaffinity"
"k8s.io/ingress-nginx/pkg/ingress/annotations/snippet"
"k8s.io/ingress-nginx/pkg/ingress/annotations/sslpassthrough"
"k8s.io/ingress-nginx/pkg/ingress/annotations/upstreamhashby"
"k8s.io/ingress-nginx/pkg/ingress/annotations/upstreamvhost"
"k8s.io/ingress-nginx/pkg/ingress/annotations/vtsfilterkey"
"k8s.io/ingress-nginx/pkg/ingress/errors"
@ -82,6 +83,7 @@ func newAnnotationExtractor(cfg extractorConfig) annotationExtractor {
"Alias": alias.NewParser(),
"ClientBodyBufferSize": clientbodybuffersize.NewParser(),
"DefaultBackend": defaultbackend.NewParser(cfg),
"UpstreamHashBy": upstreamhashby.NewParser(),
"UpstreamVhost": upstreamvhost.NewParser(),
"VtsFilterKey": vtsfilterkey.NewParser(),
"ServerSnippet": serversnippet.NewParser(),
@ -131,6 +133,7 @@ const (
clientBodyBufferSize = "ClientBodyBufferSize"
certificateAuth = "CertificateAuth"
serverSnippet = "ServerSnippet"
upstreamHashBy = "UpstreamHashBy"
)
func (e *annotationExtractor) ServiceUpstream(ing *extensions.Ingress) bool {
@ -189,3 +192,8 @@ func (e *annotationExtractor) ServerSnippet(ing *extensions.Ingress) string {
val, _ := e.annotations[serverSnippet].Parse(ing)
return val.(string)
}
func (e *annotationExtractor) UpstreamHashBy(ing *extensions.Ingress) string {
val, _ := e.annotations[upstreamHashBy].Parse(ing)
return val.(string)
}