GitLab monitoring: Setting up Logz.io and ELK stack

What this post added

This post details the integration of GitLab's logging framework with the ELK Stack (Elasticsearch, Logstash, Kibana) and Logz.io, enabling centralized log aggregation, analysis, and visualization for monitoring, troubleshooting, and analyzing team activity. It covers configuring Filebeat to ship various GitLab logs (production_json.log, production.log, api_json.log, application.log) to an ELK deployment or Logz.io, and demonstrates basic log analysis and visualization techniques in Kibana.