$ show obfuscurity/backstop
Backstop is a Ruby Sinatra web application that acts as a proxy for submitting metrics to Graphite/Carbon. It accepts JSON data via HTTP POST from various sources (Collectd, GitHub webhooks, PagerDuty, and custom endpoints) and forwards the metrics to one or more Carbon/Graphite listeners. The application is structured with separate components for configuration, publishing metrics, handling authentication, and parsing Collectd data using a plugin system. The Publisher class manages a pool of TCP connections to Carbon servers, randomly selecting a connection for each metric to achieve basic load balancing. It handles reconnection by resetting the connection pool on socket errors. The Collectd parser uses a dynamic plugin system to handle different Collectd plugin types, making it easy to extend for new plugin formats.
The LLM identified 2 files worth highlighting for reuse:
Manages a pool of TCP connections to Carbon/Graphite servers, randomly selecting a connection for each metric to distribute load. Handles automatic reconnection on socket errors and supports optional API key prefixing for hosted Graphite services. This component is self-contained and could be extracted for use in any project requiring metric publishing to Graphite.
Parses Collectd JSON payloads using a base parser for host/interval extraction and a dynamic plugin system for plugin-specific metric extraction. Each Collectd plugin type has a corresponding parser method (e.g., parse_plugin_cpu) that returns an array of metric hashes. The system falls back to a generic parser for unknown plugins, making it extensible and robust.