feature: updated base nginx version

Dockerfile

@@ -1,4 +1,4 @@
-ARG BASE_IMAGE="nginx:alpine"
+ARG BASE_IMAGE="nginx:1.15-alpine"
 
 FROM ${BASE_IMAGE}
 

default.nginx.conf

@@ -1,4 +1,5 @@
-include /etc/nginx/modules/http_lua.conf;
+load_module /usr/lib/nginx/modules/ndk_http_module.so;
+load_module /usr/lib/nginx/modules/ngx_http_lua_module.so;
 
 events {}