Immutable Infrastructure — Technology Wiki

Overview

An approach where infrastructure components are never modified after deployment but replaced entirely with updated versions.

The practice of systematically managing and maintaining the consistency of system configurations.

An open-source automation tool for configuration management, application deployment, and task automation.

A configuration management tool that automates the provisioning and management of infrastructure.

A configuration management tool using Ruby-based scripts to automate infrastructure setup and maintenance.

An operational framework using Git repositories as the single source of truth for declarative infrastructure and applications.

The process of automating the compilation, testing, and packaging of software applications.

An automated test that verifies a service or system component is functioning correctly.

Maintaining two identical production environments to enable instant switching between versions.

The maximum amount of time a service can be unavailable within a given period based on its SLO.

A set of practices combining software development and IT operations to shorten the development lifecycle and deliver continuous value.

A system design approach that ensures a certain degree of operational continuity during a given measurement period.

The automatic detection of devices and services on a network, enabling dynamic service-to-service communication.

Increasing the resources (CPU, RAM, storage) of an existing machine to handle more load.