Containerization is the packing together of a software module, application or system with all its dependencies to run inside a controlled virtual environment – a container. Containerization Software is software designed to automate the process of building, deploying, and managing containerized services. Examples of containerization software include Docker (for deploying containers in a single node) and Kubernetes (for managing multiple nodes of containerized software). Containers are portable and scalable because each is pre-packaged with the necessary configurations, allowing quick and easy deployment without complex setup, and potentially supporting reliability requirements.