DevOps Intermediate

What is Grafana?

An open-source analytics and visualization platform for creating dashboards from various data sources.

Grafana creates interactive, customizable dashboards for monitoring data. It connects to Prometheus, Elasticsearch, PostgreSQL, MySQL, InfluxDB, CloudWatch, and many other data sources. Dashboards include graphs, gauges, tables, heatmaps, and alerts.

Features include dashboard templates, variables for dynamic filtering, alerting rules, annotations, and team-based access control. Grafana Cloud offers a managed service. It is the visualization layer in most modern monitoring stacks.

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A source control strategy where developers integrate small changes directly into the main branch frequently, often multiple times per day.

Service Discovery

A mechanism that automatically detects and tracks the network locations of service instances in distributed systems.

Continuous Integration and Continuous Deployment — automated practices for building, testing, and deploying code changes.

A file containing build rules and commands that automates compilation and common project tasks using the make utility.

Kubernetes Secret

A Kubernetes object for storing sensitive data like passwords, tokens, and certificates, with base64 encoding and optional encryption at rest.

The acceptable amount of unreliability allowed for a service, calculated as 100% minus the Service Level Objective.

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