What is Docker and how is it used in Linux DevOps

Docker is an open-source platform that automates the deployment of applications inside lightweight, portable containers. In the context of Linux DevOps, Docker is used to ensure that applications run quickly and reliably across different computing environments. It allows developers to package applications with all the necessary dependencies, libraries, and configuration files, ensuring consistency across development, testing, and production environments.

In DevOps workflows, Docker supports continuous integration and continuous deployment (CI/CD) pipelines. Teams can leverage Docker to create and manage containers that encapsulate their applications, making it easier to scale and manage microservices architectures.

Example Docker Command

# Build a Docker image from the Dockerfile docker build -t my-app . # Run a container from the newly created image docker run -d -p 80:80 my-app

Docker Linux DevOps Containers CI/CD Microservices Application Deployment

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