Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
AirBrake - Airbrake is the leading exception reporting service, currently providing error tracking.
Chef - Automation for all of your technology. Overcome the complexity and rapidly ship your infrastructure and apps anywhere with automation.
Sentry.io - From error tracking to performance monitoring, developers can see what actually matters, solve quicker, and learn continuously about their applications - from the frontend to the backend.
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.
HoneyBadger - Exception, uptime, and performance monitoring for Ruby.