Docker Roadmap – Master Containerization from Scratch

Learn Docker for Developers, DevOps, and Cloud Enthusiasts — From Basics to Real-World Projects

Basic overview

What is Docker?

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Why Learn Docker?

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Estimated time commitment for the roadmap.

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Phases of the Docker Roadmap

Phase 1: Introduction to Containers & Docker

What are Containers?

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Why Docker? History and Evolution

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Virtual Machines vs Containers

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Installing Docker on Windows/Mac/Linux

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Docker CLI Basics

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Phase 2: Docker Core Concepts

Docker Images vs Containers

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Docker Hub & Official Images

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Creating Your First Docker Container

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Dockerfile – Basics & Syntax

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Building Custom Images

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Phase 3: Docker Image Management

Image Layers and Caching

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Tagging and Versioning

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Pushing/Pulling Images from Docker Hub

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Docker Save, Load, Export, and Import

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Phase 4: Working with Docker Containers

Starting, Stopping, Removing Containers

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Executing Commands inside Containers

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Volumes and Persistent Storage

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Copying Files to/from Containers

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Container Logs and Monitoring

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Phase 5: Docker Networking

Bridge, Host, and None Networks

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Port Mapping

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Linking Containers

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Custom Networks

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Docker Compose Networking

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Phase 6: Docker Compose

Introduction to Docker Compose

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YAML Syntax

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Multi-container Applications (e.g., Node.js + MongoDB)

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Volumes, Networks, and Environment Variables in Compose

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Phase 7: Advanced Docker Topics

Multi-Stage Builds

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Docker Secrets and Configs

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Resource Limits (CPU/Memory)

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Init Containers

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Health Checks

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Phase 8: Docker and DevOps

Docker in CI/CD Pipelines

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Integrating Docker with Jenkins, GitHub Actions

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Docker for Test Automation

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Docker and Infrastructure as Code (IaC)

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Phase 9: Docker in Production

Docker Security Best Practices

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Scanning for Vulnerabilities

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Optimizing Image Size

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Logging and Monitoring Containers

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Deploying Containers on Cloud Platforms (AWS/GCP/Azure)

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Phase 10: Docker Orchestration (Basics)

Introduction to Kubernetes and Docker Swarm

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Docker Stack vs Compose

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Scaling Containers with Swarm

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Kubernetes Integration (EKS, GKE, AKS)

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Phase 11: Real-World Projects

Containerized LAMP Stack (Linux, Apache, MySQL, PHP)

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Dockerized React + Node.js App with MongoDB

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Full CI/CD Pipeline using Docker and GitHub Actions

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Microservices App Deployment with Docker Compose

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Phase 12: Deployment

Building Vue App for Production

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Hosting with Netlify, Vercel, Firebase, GitHub Pages

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Environment Variables

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Basic CI/CD Concepts

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