add params for access log

internal/ingress/controller/config/config.go

@@ -94,6 +94,11 @@ type Configuration struct {
 	// By default this is disabled
 	AllowBackendServerHeader bool `json:"allow-backend-server-header"`
 
+	// AccessLogParams sets additionals params for access_log
+	// http://nginx.org/en/docs/http/ngx_http_log_module.html#access_log
+	// By default it's empty
+	AccessLogParams string `json:"access-log-params,omitempty"`
+
 	// AccessLogPath sets the path of the access logs if enabled
 	// http://nginx.org/en/docs/http/ngx_http_log_module.html#access_log
 	// By default access logs go to /var/log/nginx/access.log
@@ -577,6 +582,7 @@ func NewDefault() Configuration {
 	cfg := Configuration{
 		AllowBackendServerHeader:   false,
 		AccessLogPath:              "/var/log/nginx/access.log",
+		AccessLogParams:            "",
 		WorkerCPUAffinity:          "",
 		ErrorLogPath:               "/var/log/nginx/error.log",
 		BlockCIDRs:                 defBlockEntity,

internal/ingress/controller/template/configmap_test.go

@@ -59,6 +59,7 @@ func TestMergeConfigMapToStruct(t *testing.T) {
 		"skip-access-log-urls":          "/log,/demo,/test",
 		"use-proxy-protocol":            "true",
 		"disable-access-log":            "true",
+		"access-log-params":             "buffer=4k gzip",
 		"access-log-path":               "/var/log/test/access.log",
 		"error-log-path":                "/var/log/test/error.log",
 		"use-gzip":                      "true",
@@ -75,6 +76,7 @@ func TestMergeConfigMapToStruct(t *testing.T) {
 	def := config.NewDefault()
 	def.CustomHTTPErrors = []int{300, 400}
 	def.DisableAccessLog = true
+	def.AccessLogParams = "buffer=4k gzip"
 	def.AccessLogPath = "/var/log/test/access.log"
 	def.ErrorLogPath = "/var/log/test/error.log"
 	def.SkipAccessLogURLs = []string{"/log", "/demo", "/test"}