Instead of a monolithic application, many modern applications can be composed of several independent stateless microservices, each performing a particular function and running in a container. This improves disaster recovery and continuous deployment. Containers are light-weight units with the necessary components that software needs to run in a virtual operating environment. Docker containers are open source and often used with Linux workloads, but Windows containers are also available.
Docker containers includes code, libraries, virtual kernel, and everything the microservices need to run.
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