Immutable Infrastructure
Immutable Infrastructure is instead of updating servers in place, you build entirely new ones with the changes baked in and replace the old ones. Servers are treated like cattle, not pets. No one SSHs in to fix things. This eliminates configuration drift and "works on my machine" problems.
Definition
Instead of updating servers in place, you build entirely new ones with the changes baked in and replace the old ones. Servers are treated like cattle, not pets. No one SSHs in to fix things. This eliminates configuration drift and "works on my machine" problems.
Related Terms
More Cloud & DevOps Terms
CI/CD
Short for Continuous Integration/Continuous Deployment. It automates testing and deploying your code so you can ship faster with fewer bugs.
Continuous Integration
The practice of automatically building and testing code every time someone pushes changes. Catches problems early instead of at release time.
Continuous Deployment
Automatically deploying code to production after it passes all tests. No manual "deploy" button—if tests pass, it ships.
DevOps
A culture and set of practices that bridges development and operations. The goal is faster, more reliable releases through automation and collaboration.
Infrastructure as Code
Managing servers, databases, and networks through config files instead of clicking around dashboards. Version controlled, repeatable, and way less error-prone.