How the open source Caddy server uses Grafana Cloud for full-stack observability

Caddy, an open-source web server project, recently transitioned to using Grafana Cloud for improved observability of its infrastructure, motivated by the need for a more comprehensive and proactive monitoring solution. The switch was driven by challenges in managing server health and performance, particularly with Caddy's buildworker node, which experienced issues such as goroutine leaks and high CPU utilization. By adopting Grafana Cloud's observability tools, Caddy's team was able to conduct faster root cause analysis and enhance their server's performance by identifying it as CPU-bound rather than memory-bound. This migration allows Caddy to better diagnose and address issues, leveraging features like log aggregation, continuous monitoring, profiling, and synthetic monitoring to enhance their overall system reliability and efficiency. The collaboration with Grafana Cloud not only resolved immediate infrastructure problems but also set the stage for ongoing improvements in managing the Caddy project's development and operations.