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❮ Previous Next ❯ Data Management in Docker Introduction Docker containers are temporary and ephemeral, meaning any data stored inside a running container disappears when the container stops. To persist data across container restarts, Docker provides two primary storage options:    1.  Volumes (Recommended) – Managed by Docker.   2.  Bind Mounts – Directly link a […]

❮ Previous Next ❯ What is Docker Compose? Docker Compose is a tool used to define and manage multi-container applications with a single configuration file (docker-compose.yml). It helps in:✅ Running multiple containers as a service.✅ Automating container networking.✅ Simplifying deployment with one command. Why Use Docker Compose? ✔ Easy Setup – Define all services in

❮ Previous Next ❯ Dockerfile Basics A Dockerfile is a script containing a set of instructions to automate the creation of Docker images. It defines everything needed to run an application, including:✔ Base Image – The starting point (e.g., Ubuntu, Python, Node.js).✔ Dependencies – Libraries and packages required by the app.✔ Configurations – Environment variables,

❮ Previous Next ❯ Docker Images What is a Docker Image? A Docker image is a lightweight, standalone, and executable package that contains everything needed to run an application. It includes:✔ Source Code – The application files.✔ Runtime – Execution environment like Python, Node.js, etc.✔ Libraries & Dependencies – Required packages.✔ Configuration Files – System

❮ Previous Next ❯ Creating and Running Containers in Docker Introduction Docker containers allow you to package applications with their dependencies and run them in an isolated environment. This section covers how to create and run containers efficiently. 1. Running Your First Container To start a simple container, use: docker run hello-world What Happens? •