ARG BASE_IMAGE="nginx:alpine" FROM ${BASE_IMAGE} # Install ping and ip RUN apk add --no-cache iproute2 iputils nginx-mod-http-lua bash # Default nginx proxy envs ENV NGINX_PROXY_SOURCE_PORT=${NGINX_PROXY_SOURCE_PORT:-"Please configure NGINX_PROXY_SOURCE_PORT env!"} ENV NGINX_PROXY_SOURCE_ADDRESS=${NGINX_PROXY_SOURCE_ADDRESS:-"Please configure NGINX_PROXY_SOURCE_ADDRESS env!"} # Copy default nginx configuration COPY default.nginx.conf /etc/nginx/nginx.conf # Copy entrypoint COPY docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh RUN chmod +x /usr/local/bin/docker-entrypoint.sh # Execute entrypoint ENTRYPOINT [ "docker-entrypoint.sh" ] CMD [ "app" ]