What is immutable infrastructure?

Immutable infrastructure is an approach to managing and deploying infrastructure and applications where components are replaced rather than changed. In this approach, new versions of the infrastructure or application are built and deployed as new components, rather than modifying existing ones in place. The goal of the immutable infrastructure is to reduce the risk of changes to the infrastructure or application by making it easier to deploy and manage.

There are several benefits to using immutable infrastructure:

  1. Improved reliability: Since infrastructure is replaced rather than modified, there is less risk of changes causing unexpected problems.
  2. Faster deployment: New versions of the infrastructure or application can be deployed quickly, since they do not need to be modified in place.
  3. Easier rollback: If a new version of the infrastructure or application has problems, it is easy to roll back to a previous version since the old version is still intact.
  4. Better security: Replacing infrastructure rather than modifying it in place can reduce the risk of security vulnerabilities being introduced.

Overall, immutable infrastructure can help improve the reliability, speed, and security of your deployments, making it easier to manage and maintain your systems.