gatus

Gatus is a system designed for monitoring the health and status of various services. It provides a centralized dashboard to visualize the uptime, latency, and other key metrics of different applications and infrastructure components. The system is built with a focus on simplicity and ease of use, allowing users to quickly set up and configure checks for their services.

The core functionality of Gatus revolves around defining "checks," which are essentially probes that periodically query a service to determine its health. These checks can be configured with various protocols, such as HTTP, ICMP, or TCP, and can include assertions to verify specific conditions in the service's response. For instance, an HTTP check might verify that a specific URL returns a 200 OK status code and that the response body contains a particular string.

When a check fails or a service experiences issues, Gatus can trigger alerts through various notification channels. These channels can include email, Slack, Discord, and others, ensuring that teams are promptly informed of any problems. The dashboard provides a clear overview of which services are operational and which are experiencing difficulties, often with historical data to help identify trends or recurring issues. Gatus is typically deployed as a standalone application, often within a containerized environment for scalability and ease of management. Its open-source nature has contributed to its adoption by a community of users who can contribute to its development and support.