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HAProxy config template: Fix weight logic for A/B testing #19893

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merged 1 commit into from
Jul 13, 2018
Merged

HAProxy config template: Fix weight logic for A/B testing #19893

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4 changes: 2 additions & 2 deletions images/router/haproxy/conf/haproxy-config.template
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Original file line number Diff line number Diff line change
Expand Up @@ -377,7 +377,7 @@ backend be_secure:{{$cfgIdx}}
{{- end }}{{/* is "edge" or "reencrypt" */}}

{{- range $serviceUnitName, $weight := $cfg.ServiceUnitNames }}
{{- if ne $weight 0 }}
{{- if ge $weight 0 }}{{/* weight=0 is reasonable to keep existing connections to backends with cookies as we can see the HTTP headers */}}
{{- with $serviceUnit := index $.ServiceUnits $serviceUnitName }}
{{- range $idx, $endpoint := processEndpointsForAlias $cfg $serviceUnit (env "ROUTER_BACKEND_PROCESS_ENDPOINTS" "") }}
server {{$endpoint.ID}} {{$endpoint.IP}}:{{$endpoint.Port}} cookie {{$endpoint.IdHash}} weight {{$weight}}
Expand Down Expand Up @@ -446,7 +446,7 @@ backend be_tcp:{{$cfgIdx}}
hash-type consistent
timeout check 5000ms
{{- range $serviceUnitName, $weight := $cfg.ServiceUnitNames }}
{{- if ne $weight 0 }}
{{- if ne $weight 0 }}}{{/* drop connections where weight=0 as we can't use cookies, leaving only r-r and src-ip as dispatch methods and weight make no sense there */}}
{{- with $serviceUnit := index $.ServiceUnits $serviceUnitName }}
{{- range $idx, $endpoint := processEndpointsForAlias $cfg $serviceUnit (env "ROUTER_BACKEND_PROCESS_ENDPOINTS" "") }}
server {{$endpoint.ID}} {{$endpoint.IP}}:{{$endpoint.Port}} weight {{$weight}}
Expand Down