Add annotation to allow custom body sizes

core/pkg/ingress/annotations/proxy/main.go

@@ -24,6 +24,7 @@ import (
 )
 
 const (
+	bodySize   = "ingress.kubernetes.io/proxy-body-size"
 	connect    = "ingress.kubernetes.io/proxy-connect-timeout"
 	send       = "ingress.kubernetes.io/proxy-send-timeout"
 	read       = "ingress.kubernetes.io/proxy-read-timeout"
@@ -32,6 +33,7 @@ const (
 
 // Configuration returns the proxy timeout to use in the upstream server/s
 type Configuration struct {
+	BodySize       string `json:"bodySize"`
 	ConnectTimeout int    `json:"conectTimeout"`
 	SendTimeout    int    `json:"sendTimeout"`
 	ReadTimeout    int    `json:"readTimeout"`
@@ -66,10 +68,15 @@ func (a proxy) Parse(ing *extensions.Ingress) (interface{}, error) {
 		rt = defBackend.ProxyReadTimeout
 	}
 
-	bs, err := parser.GetStringAnnotation(bufferSize, ing)
-	if err != nil || bs == "" {
-		bs = defBackend.ProxyBufferSize
+	bufs, err := parser.GetStringAnnotation(bufferSize, ing)
+	if err != nil || bufs == "" {
+		bufs = defBackend.ProxyBufferSize
 	}
 
-	return &Configuration{ct, st, rt, bs}, nil
+	bs, err := parser.GetStringAnnotation(bodySize, ing)
+	if err != nil || bs == "" {
+		bs = defBackend.ProxyBodySize
+	}
+
+	return &Configuration{bs, ct, st, rt, bufs}, nil
 }

core/pkg/ingress/controller/controller.go

@@ -788,6 +788,7 @@ func (ic *GenericController) createServers(data []interface{}, upstreams map[str
 
 	bdef := ic.GetDefaultBackend()
 	ngxProxy := proxy.Configuration{
+		BodySize:       bdef.ProxyBodySize,
 		ConnectTimeout: bdef.ProxyConnectTimeout,
 		SendTimeout:    bdef.ProxySendTimeout,
 		ReadTimeout:    bdef.ProxyReadTimeout,

core/pkg/ingress/defaults/main.go

@@ -6,12 +6,17 @@ import "net"
 // The reason of this requirements is the annotations are generic. If some implementation do not supports
 // one or more annotations it just can provides defaults
 type Backend struct {
+
 	// enables which HTTP codes should be passed for processing with the error_page directive
 	// http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_intercept_errors
 	// http://nginx.org/en/docs/http/ngx_http_core_module.html#error_page
 	// By default this is disabled
 	CustomHTTPErrors []int `json:"custom-http-errors,-"`
 
+	// http://nginx.org/en/docs/http/ngx_http_core_module.html#client_max_body_size
+	// Sets the maximum allowed size of the client request body
+	ProxyBodySize string `json:"proxy-body-size"`
+
 	// Defines a timeout for establishing a connection with a proxied server.
 	// It should be noted that this timeout cannot usually exceed 75 seconds.
 	// http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_connect_timeout