feature: try alpine

Dockerfile

@@ -1,10 +1,9 @@
-ARG BASE_IMAGE="nginx"
+ARG BASE_IMAGE="nginx:alpine"
 
 FROM ${BASE_IMAGE}
 
 # Install ping and ip
-RUN apt update && \
+RUN apk add --no-cache iproute2 iputils nginx-mod-http-lua
-    apt install -y iproute2 iputils-ping
 
 # Default nginx proxy envs
 ENV NGINX_PROXY_SOURCE_PORT=${NGINX_PROXY_SOURCE_PORT:-"Please configure NGINX_PROXY_SOURCE_PORT env!"}

default.nginx.conf

@@ -1,3 +1,5 @@
+include /etc/nginx/modules/http_lua.conf;
+
 events {}
 
 set_by_lua $nginx_proxy_source_port 'return os.getenv("$NGINX_PROXY_SOURCE_PORT")';