Prometheus

Prometheus (source code) is an open source monitoring tool that can be used to instrument and report on Python web applications.

Prometheus resources

• Prometheus-Basics is a newbie's introduction to this tool. It covers what Prometheus is, the tool's architecture, types of metrics and contains a walkthrough of how to get it configured.

• This primer on Prometheus walks through installation, configuration and metrics collection.

• Monitoring synchronous Python web apps with Prometheus and its asynchronous monitoring counterpart are two tutorials that show how to add middleware to your web apps that allows Prometheus metrics collection.

• Monitoring with Prometheus provides an overview of the tool and explains how to combine it with Grafana to visualize the metrics that are collected.

• Monitor your applications with Prometheus is a getting started guide with a walkthrough of how to instrument a simple Golang application.

• Custom Application Metrics with Django, Prometheus, and Kubernetes shows how to handle the initial configuration with django-prometheus, deploys the Django web app using Helm and configures Prometheus to scrape metrics from the application running on Kubernetes.

• A gentle introduction to the wonderful world of metrics has a quick summary that compares Prometheus with Nagios, then digs into the logging format and what you can visualize with this tool.

• From Graphite to Prometheus explains some of the differences between using a StatsD / Graphite monitoring stack and Prometheus, such as how Prometheus scrapes data instead of the applications pushing data to a metrics aggregator, and the query languages for each tool.

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