Added configmap key for upstream zone

Author: victor

internal/configs/config_params.go

@@ -110,6 +110,7 @@ func NewDefaultConfigParams() *ConfigParams {
 		SSLPorts:                   []int{443},
 		MaxFails:                   1,
 		MaxConns:                   0,
+		UpstreamZoneSize: 			"256k",
 		FailTimeout:                "10s",
 		LBMethod:                   "random two least_conn",
 		MainErrorLogLevel:          "notice",

internal/configs/configmaps.go

@@ -307,6 +307,10 @@ func ParseConfigMap(cfgm *v1.ConfigMap, nginxPlus bool) *ConfigParams {
 		}
 	}
 
+	if upstreamZoneSize, exists := cfgm.Data["upstream-zone-size"]; exists {
+		cfgParams.UpstreamZoneSize = upstreamZoneSize
+	}
+
 	if failTimeout, exists := cfgm.Data["fail-timeout"]; exists {
 		cfgParams.FailTimeout = failTimeout
 	}

internal/configs/ingress_test.go

@@ -125,6 +125,7 @@ func createExpectedConfigForCafeIngressEx() version1.IngressNginxConfig {
 	coffeeUpstream := version1.Upstream{
 		Name:     "default-cafe-ingress-cafe.example.com-coffee-svc-80",
 		LBMethod: "random two least_conn",
+		UpstreamZoneSize: "256k",
 		UpstreamServers: []version1.UpstreamServer{
 			{
 				Address:     "10.0.0.1",
@@ -137,6 +138,7 @@ func createExpectedConfigForCafeIngressEx() version1.IngressNginxConfig {
 	teaUpstream := version1.Upstream{
 		Name:     "default-cafe-ingress-cafe.example.com-tea-svc-80",
 		LBMethod: "random two least_conn",
+		UpstreamZoneSize: "256k",
 		UpstreamServers: []version1.UpstreamServer{
 			{
 				Address:     "10.0.0.2",
@@ -476,6 +478,7 @@ func createExpectedConfigForMergeableCafeIngress() version1.IngressNginxConfig {
 	coffeeUpstream := version1.Upstream{
 		Name:     "default-cafe-ingress-coffee-minion-cafe.example.com-coffee-svc-80",
 		LBMethod: "random two least_conn",
+		UpstreamZoneSize: "256k",
 		UpstreamServers: []version1.UpstreamServer{
 			{
 				Address:     "10.0.0.1",
@@ -488,6 +491,7 @@ func createExpectedConfigForMergeableCafeIngress() version1.IngressNginxConfig {
 	teaUpstream := version1.Upstream{
 		Name:     "default-cafe-ingress-tea-minion-cafe.example.com-tea-svc-80",
 		LBMethod: "random two least_conn",
+		UpstreamZoneSize: "256k",
 		UpstreamServers: []version1.UpstreamServer{
 			{
 				Address:     "10.0.0.2",

internal/configs/version1/config.go

@@ -170,6 +170,7 @@ type MainConfig struct {
 func NewUpstreamWithDefaultServer(name string) Upstream {
 	return Upstream{
 		Name: name,
+		UpstreamZoneSize: "256k",
 		UpstreamServers: []UpstreamServer{
 			{
 				Address:     "127.0.0.1",

internal/configs/version1/nginx.ingress.tmpl

@@ -2,7 +2,7 @@
 
 {{range $upstream := .Upstreams}}
 upstream {{$upstream.Name}} {
-	{{if $upstream.UpstreamZoneSize }}zone {{$upstream.Name}} {{$upstream.UpstreamZoneSize}};{{end}}
+	{{if ne $upstream.UpstreamZoneSize "0" }}zone {{$upstream.Name}} {{$upstream.UpstreamZoneSize}};{{end}}
 	{{if $upstream.LBMethod }}{{$upstream.LBMethod}};{{end}}
 	{{range $server := $upstream.UpstreamServers}}
 	server {{$server.Address}}:{{$server.Port}} max_fails={{$server.MaxFails}} fail_timeout={{$server.FailTimeout}} max_conns={{$server.MaxConns}};{{end}}

internal/configs/version1/templates_test.go

@@ -13,6 +13,7 @@ const nginxPlusMainTmpl = "nginx-plus.tmpl"
 
 var testUps = Upstream{
 	Name: "test",
+	UpstreamZoneSize: "256k",
 	UpstreamServers: []UpstreamServer{
 		{
 			Address:     "127.0.0.1",