Containerization in cloud computing involves encapsulating an application and its dependencies into a container. This process begins with choosing a suitable base image, which is then customized by adding the necessary libraries and dependencies required for the application to run. The Dockerfile, a text document that contains all the commands needed to build a container image, is created next. Once the Dockerfile is ready, it’s used to create the container image using the ‘docker build’ command.
The resulting container can be deployed on any system that supports Docker, ensuring consistency across different environments. Containers are lightweight and start quickly, making them ideal for scaling applications. They also provide isolation, as each container runs in its own user space, preventing interference between applications.
In terms of management, orchestration tools like Kubernetes can be used. These tools help manage containers at scale, handling tasks such as deployment, networking, scaling, and availability.