What is the role of containerization in modern application and infrastructure management?

Containerization allows applications to be packaged together with all their dependencies into isolated containers. This ensures portability across different environments — from local development to production. In modern infrastructure management, containers simplify scaling, automate deployment and updates, and improve resource utilization. With containers, applications can be quickly created, tested, and run in a standardized environment, reducing the risks of errors related to environment incompatibility.