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prometheus.md

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Prometheus

imgproxy can collect its metrics for Prometheus. To use this feature, do the following:

  1. Set IMGPROXY_PROMETHEUS_BIND environment variable. Note that you can't bind the main server and Prometheus to the same port;
  2. Collect the metrics from any path on the specified binding.

imgproxy will collect the following metrics:

  • requests_total - a counter of the total number of HTTP requests imgproxy processed;
  • errors_total - a counter of the occurred errors separated by type (timeout, downloading, processing);
  • request_duration_seconds - a histogram of the response latency (seconds);
  • download_duration_seconds - a histogram of the source image downloading latency (seconds);
  • processing_duration_seconds - a histogram of the image processing latency (seconds);
  • Some useful Go metrics like memstats and goroutines count.