Register MaxMind in website: https://www.maxmind.com/en/home
Build image with AccountID and Lisence of MaxMind:

• docker build -t harbor.elofun.net/devops/nginx-geoip:0.1.0 --build-arg ACCOUNTID_GEO=${AccountID} --build-arg LISENCE=${Lisence} .
  

Combine with your Push Gateway: use environment: PUSHGATEWAY_ENDPOINT: "<ip|domain pushgateway>:9091"