Prometheus
Prometheus is an open-source monitoring and alerting toolkit designed for reliability and scalability. It was originally developed at SoundCloud and later open-sourced as part of the Cloud Native Computing Foundation (CNCF). Prometheus is widely used in the field of DevOps and cloud-native computing to monitor systems and applications.
This key competency area includes an understanding of PromQL, metric types, instrumentation, scraping and target configuration, service discovery, exporters, and Prometheus operator.
Key Competencies:
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PromQL (Prometheus Query Language) - Ability to write and execute PromQL queries to retrieve and analyze time-series data collected by Prometheus.
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Metric Types - Knowledge of different types of Prometheus metrics, including counters, gauges, histograms, and summaries.
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Instrumentation - Knowledge of how to instrument the applications and services to expose metrics in a format that Prometheus can scrape.
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Scraping and Target Configuration - Ability to configure Prometheus to scrape metrics from various targets, including HTTP endpoints, exporters, and other Prometheus servers.
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Service Discovery - Understand service discovery mechanisms in Prometheus, including static configuration and dynamic discovery with tools like Consul, Kubernetes, or AWS.
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Exporters - Knowledge of configuring and using various Prometheus exporters for third-party systems, databases, and applications.
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Prometheus Operator - Explore the Prometheus Operator for Kubernetes environments, which simplifies the deployment and management of Prometheus instances.