Container virtualization

Definition: A method of virtualization in which applications and their dependencies, system libraries, and settings are bundled within a "container". Containers ensure that applications run in consistent and reproducible environments.

Key Features:

  • Isolation: Each container operates as an independent unit, isolated from other containers.

  • Lightweight: Containers are more lightweight compared to traditional virtual machines as they don't require a separate operating system.

  • Portability: Once created, a container can run on any platform that supports the container engine.

  • Consistency: Ensures consistent environments across development, testing, and production.

Popular Technologies:

  • Docker: A widely used platform for creating, distributing, and running containers.

  • Kubernetes: An orchestration system for Docker containers that automates deployment, scaling, and management.

Advantages over VMs (Virtual Machines):

  • Resource Efficiency: Containers share the same OS kernel and only utilize necessary resources.

  • Faster Start Times: Containers can start and stop in fractions of a second.

Use Cases: Development, testing, continuous integration/continuous deployment, microservices architectures, and many other applications where isolation, consistency, and portability are beneficial.