NGINX with Prometheus metric exporter

An extended OpenResty image with the Prometheus metric
exporter plugin added.

Custom nginx.conf is bundled into this image, change for your needs.

Nginx configuration files are located at /usr/local/openresty/nginx/conf/.

Prometheus plugin config is located at /usr/local/openresty/nginx/conf/conf.d/prometheus.conf. By
default it listens on 9145 port.