Implementing Agent-less Monitoring in Elixir using Broadway

The article details the development of an agent-less system monitoring solution for the Opsmaru platform. Previously, adequate monitoring was lacking due to the dependency on agent-based solutions, which required additional maintenance. By leveraging Elixir's Broadway library and the existing Uplink module architecture, the team was able to retrieve system metrics using LXD's metrics API without installing additional software on target machines. The implementation involves collecting, processing, and shipping data to an Elastic stack for further analysis, while maintaining a smooth workflow through Broadway's producer-consumer pattern. The approach facilitates deeper insights into system performance and operational health without the overhead of traditional monitoring solutions.