Introduction to Docker

Learn what Docker is and why it's revolutionizing software development.

By Kevin McAleer,    1 Minute

Understanding Docker

In this lesson, we introduce Docker, a platform that has changed the way software is developed and deployed.

What is Docker?

Docker is a tool designed to make it easier to create, deploy, and run applications by using containers. Containers allow a developer to package up an application with all the parts it needs, such as libraries and other dependencies, and ship it all out as one package.

Why Use Docker?

  • Consistency: Docker ensures that your application works seamlessly in any environment.
  • Simplicity: Simplifies configuration management.
  • Isolation: Containers are isolated from each other and the host system.
  • Scalability: Easily scale up or scale down applications.

Docker vs. Virtual Machines

  • Docker containers are more lightweight than virtual machines.
  • Containers share the host system’s kernel, while VMs require a full-blown OS.
  • Docker can start up containers quickly compared to VMs.

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