New Relic

imgproxy can send its metrics to New Relic. To use this feature, do the following:

1. Register at New Relic and get a license key.
2. Set the IMGPROXY_NEW_RELIC_KEY environment variable to the license key.
3. (optional) Set the IMGPROXY_NEW_RELIC_APP_NAME environment variable to be the desired application name.
4. (optional) Set the IMGPROXY_NEW_RELIC_LABELS environment variable to be the desired list of labels. Example: label1=value1;label2=value2.

imgproxy will send the following info to New Relic:

• CPU and memory usage
• Response time
• Queue time
• Image downloading time
• Image processing time
• Errors that occurred while downloading and processing an image

Additionally, imgproxy sends the following metrics over Metrics API:

• imgproxy.requests_in_progress: the number of requests currently in progress
• imgproxy.images_in_progress: the number of images currently in progress
• imgproxy.buffer.size: a summary of the download buffers sizes (in bytes)
• imgproxy.buffer.default_size: calibrated default buffer size (in bytes)
• imgproxy.buffer.max_size: calibrated maximum buffer size (in bytes)
• imgproxy.vips.memory: libvips memory usage (in bytes)
• imgproxy.vips.max_memory: libvips maximum memory usage (in bytes)
• imgproxy.vips.allocs: the number of active vips allocations