Nginx-ingress-controller-access, _geoip_database_unavailable_GeoLite2-City.mmdb, _geoip_database_unavailable_GeoLite2-ASN.mmdb

The instructions say

On self-managed deployments copy the database files to $ES_CONFIG/ingest-geoip.

Assuming a normal installation

Directory layout here

/etc/elasticsearch/ingest-geoip