#!/usr/bin/env bash

for file in `find /etc/nginx/conf.d/ -type f -name "*.conf"`
do
  CURSRV=$(cat $file|grep proxy_pass|awk -F " " '{print $2}'|grep -o -P '(?<=//).*(?=.)')
  NEWSRV=$(dig srv $CURSRV +short|awk -F " " '{print $4}'|sed -r 's/\.([^.]*)$/\1/')
  sed -i "s*http://$CURSRV*http://$NEWSRV*g" $file
done

# Execute the CMD from the Dockerfile.
exec "$@"