Jaeger - Distributed tracing system released as open source by Uber
Timber.io - Timber.io is the best logging platform for ruby, node, elixir and much more.
Ensighten - Ensighten provides enterprise tag management solutions that enable businesses manage their websites more effectively.
Zoya - Zoya is a highly composable logging utility
Fig - Fast, isolated development environments using Docker.
LogTrail - A Kibana plugin to view, search and tail logs and events