Automation and DevOps
Since a microservices architecture includes many more parts, all services must be immutable, that is, they must be easily started, deployed, discovered, and stopped. This is where containerization comes into play.
Containerization enables an application as well as the environment it runs to move as a single immutable unit. These containers can be scaled when needed, managed individually, and deployed in the same manner as compiled source code. They’re the key to achieving agility, scalability, durability, and quality.