53 lines
1.8 KiB
Go
53 lines
1.8 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package upstreamhashby
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import (
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networking "k8s.io/api/networking/v1beta1"
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"k8s.io/ingress-nginx/internal/ingress/annotations/parser"
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"k8s.io/ingress-nginx/internal/ingress/resolver"
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)
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type upstreamhashby struct {
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r resolver.Resolver
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}
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// Config contains the Consistent hash configuration to be used in the Ingress
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type Config struct {
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UpstreamHashBy string `json:"upstream-hash-by,omitempty"`
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UpstreamHashBySubset bool `json:"upstream-hash-by-subset,omitempty"`
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UpstreamHashBySubsetSize int `json:"upstream-hash-by-subset-size,omitempty"`
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}
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// NewParser creates a new UpstreamHashBy annotation parser
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func NewParser(r resolver.Resolver) parser.IngressAnnotation {
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return upstreamhashby{r}
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}
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// Parse parses the annotations contained in the ingress rule
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func (a upstreamhashby) Parse(ing *networking.Ingress) (interface{}, error) {
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upstreamHashBy, _ := parser.GetStringAnnotation("upstream-hash-by", ing)
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upstreamHashBySubset, _ := parser.GetBoolAnnotation("upstream-hash-by-subset", ing)
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upstreamHashbySubsetSize, _ := parser.GetIntAnnotation("upstream-hash-by-subset-size", ing)
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if upstreamHashbySubsetSize == 0 {
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upstreamHashbySubsetSize = 3
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}
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return &Config{upstreamHashBy, upstreamHashBySubset, upstreamHashbySubsetSize}, nil
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}
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