Docker Exploration
@amitmund
July 09, 2026
Docker Mastery 2026
The Complete Beginner to Advanced Guide to Docker, Containers, Images, Networking, Volumes, Security, Multi-Container Applications, Docker Compose, Production Deployments, and DevOps
Course Goal
This course is designed to take you from absolute beginner to production-ready Docker Engineer.
By the end of this learning track, you will be able to:
- Understand containerization concepts
- Build and optimize Docker images
- Manage containers efficiently
- Create multi-container applications
- Build production-ready Docker environments
- Secure Docker deployments
- Optimize performance
- Troubleshoot Docker issues
- Integrate Docker with CI/CD pipelines
- Prepare for Docker and DevOps interviews
Prerequisites
- Basic Computer Knowledge
- Linux Command Line Basics
- Basic Networking Concepts
- Basic Programming (Optional)
- Git Basics (Recommended)
Course Structure
Module 1 — Docker Fundamentals
Chapter 1 — Introduction to Docker Fundamentals
- Learning Objectives & Prerequisites
- What is Docker?
- History of Virtualization
- Evolution of Containers
- Why Docker was Created
- Docker vs Virtual Machines
- Benefits of Containerization
- Docker Editions
- Docker Ecosystem
- Docker Terminology
Chapter 2 — Docker Architecture
- Docker Client
- Docker Engine
- Docker Daemon
- Docker API
- Docker Objects
- Images
- Containers
- Registries
- Docker Hub
- OCI Standards
- Container Runtime
- Container Lifecycle
Chapter 3 — Installing Docker
- Windows Installation
- Linux Installation
- macOS Installation
- Docker Desktop
- Docker Engine
- Rootless Docker
- Installation Verification
- Common Installation Issues
Chapter 4 — Docker CLI Essentials
- Docker CLI Overview
- Command Structure
- Help Commands
- Docker Info
- Docker Version
- Docker System
- Configuration Files
- CLI Best Practices
Chapter 5 — Docker Workflow
- Pull
- Build
- Run
- Stop
- Restart
- Remove
- Inspect
- Logs
- Exec
- Attach
Module 2 — Docker Images
Chapter 6 — Understanding Docker Images
- Image Layers
- Union File System
- Base Images
- Official Images
- Custom Images
- Image IDs
- Image Metadata
Chapter 7 — Dockerfile Fundamentals
- Dockerfile Syntax
- FROM
- RUN
- COPY
- ADD
- CMD
- ENTRYPOINT
- ENV
- LABEL
- WORKDIR
- USER
- EXPOSE
- HEALTHCHECK
- STOPSIGNAL
Chapter 8 — Building Images
- docker build
- Build Context
- Tags
- Build Cache
- Multi-stage Builds
- Build Arguments
- Image Optimization
Chapter 9 — Managing Images
- docker images
- docker image inspect
- docker history
- docker save
- docker load
- docker tag
- docker push
- docker pull
- docker prune
Chapter 10 — Image Optimization
- Layer Optimization
- Small Images
- Alpine Images
- Distroless Images
- Security Scanning
- Best Practices
Module 3 — Containers
Chapter 11 — Container Lifecycle
- Create
- Start
- Stop
- Restart
- Pause
- Unpause
- Kill
- Remove
- Auto Restart Policies
Chapter 12 — Container Management
- docker ps
- docker inspect
- docker top
- docker stats
- docker logs
- docker events
- docker diff
Chapter 13 — Interactive Containers
- docker exec
- docker attach
- Shell Access
- Debugging Containers
Chapter 14 — Resource Management
- CPU Limits
- Memory Limits
- Swap Limits
- Storage Limits
- PIDs
- OOM Killer
Chapter 15 — Health Checks
- HEALTHCHECK
- Monitoring
- Restart Policies
- Failure Detection
Module 4 — Docker Networking
Chapter 16 — Networking Fundamentals
- Container Networking
- Linux Bridge
- Network Namespaces
- Virtual Ethernet
- DNS Resolution
Chapter 17 — Network Drivers
- Bridge
- Host
- None
- Overlay
- Macvlan
- IPvlan
Chapter 18 — Managing Networks
- docker network create
- inspect
- connect
- disconnect
- rm
- prune
Chapter 19 — Service Discovery
- DNS
- Aliases
- Hostnames
- Internal Communication
Chapter 20 — Advanced Networking
- Multi-host Networking
- Overlay Networks
- Load Balancing
- Network Security
Module 5 — Docker Storage
Chapter 21 — Storage Fundamentals
- Writable Layer
- Persistent Data
- Storage Drivers
Chapter 22 — Volumes
- Named Volumes
- Anonymous Volumes
- Volume Drivers
- Backup
- Restore
Chapter 23 — Bind Mounts
- Host Directories
- File Mounting
- Permissions
- Best Practices
Chapter 24 — tmpfs Mounts
- Memory Storage
- Performance
- Security
Chapter 25 — Storage Best Practices
- Backups
- Migration
- Cleanup
- Performance
Module 6 — Docker Compose
Chapter 26 — Docker Compose Fundamentals
- Compose Architecture
- YAML Syntax
- compose.yaml
- Services
- Networks
- Volumes
Chapter 27 — Compose Commands
- up
- down
- build
- pull
- logs
- ps
- exec
- restart
Chapter 28 — Multi-container Applications
- Web + Database
- Microservices
- Reverse Proxy
- Caching
Chapter 29 — Environment Management
- Environment Variables
- .env Files
- Secrets
- Profiles
Chapter 30 — Production Compose
- Scaling
- Health Checks
- Dependencies
- Restart Policies
Module 7 — Docker Registry
Chapter 31 — Docker Hub
Chapter 32 — Private Registry
Chapter 33 — Harbor Registry
Chapter 34 — Image Signing
Chapter 35 — Registry Security
Module 8 — Docker Security
Chapter 36 — Container Security Fundamentals
Chapter 37 — Least Privilege
Chapter 38 — Rootless Docker
Chapter 39 — Image Scanning
Chapter 40 — Docker Bench Security
Chapter 41 — Secrets Management
Chapter 42 — Seccomp
Chapter 43 — AppArmor
Chapter 44 — SELinux
Chapter 45 — Production Security
Module 9 — Docker in Development
Chapter 46 — Development Workflow
Chapter 47 — Hot Reload
Chapter 48 — Debugging Containers
Chapter 49 — VS Code Integration
Chapter 50 — Dev Containers
Module 10 — Docker in Production
Chapter 51 — Production Architecture
Chapter 52 — Logging
Chapter 53 — Monitoring
Chapter 54 — Resource Optimization
Chapter 55 — Scaling Containers
Chapter 56 — High Availability
Chapter 57 — Disaster Recovery
Chapter 58 — Backup Strategies
Chapter 59 — Image Lifecycle Management
Chapter 60 — Production Best Practices
Module 11 — CI/CD with Docker
Chapter 61 — GitHub Actions
Chapter 62 — GitLab CI
Chapter 63 — Jenkins
Chapter 64 — Automated Builds
Chapter 65 — Image Versioning
Chapter 66 — Deployment Strategies
Module 12 — Docker & Kubernetes
Chapter 67 — Docker in Kubernetes
Chapter 68 — Container Runtime
Chapter 69 — Pods vs Containers
Chapter 70 — Building Kubernetes Images
Chapter 71 — Image Registry Integration
Chapter 72 — Best Practices
Module 13 — Advanced Docker
Chapter 73 — BuildKit
Chapter 74 — Multi-platform Images
Chapter 75 — Buildx
Chapter 76 — Image Manifests
Chapter 77 — Docker API
Chapter 78 — Docker SDK
Chapter 79 — Custom Networks
Chapter 80 — Performance Tuning
Module 14 — Real-world Projects
Chapter 81 — Nginx Container
Chapter 82 — Apache Container
Chapter 83 — MySQL Container
Chapter 84 — PostgreSQL Container
Chapter 85 — Redis Container
Chapter 86 — MongoDB Container
Chapter 87 — Django Deployment
Chapter 88 — Flask Deployment
Chapter 89 — Node.js Deployment
Chapter 90 — Full Stack Application
Module 15 — Interview Preparation
Chapter 91 — Beginner Questions
Chapter 92 — Intermediate Questions
Chapter 93 — Advanced Questions
Chapter 94 — Troubleshooting Scenarios
Chapter 95 — System Design
Chapter 96 — Production Scenarios
Chapter 97 — Hands-on Challenges
Chapter 98 — Mock Interview
Module 16 — Bonus
Chapter 99 — Docker Tips & Tricks
Chapter 100 — Hidden Features
Chapter 101 — Productivity Hacks
Chapter 102 — Common Workarounds
Chapter 103 — Best Practices
Chapter 104 — Docker Roadmap
Chapter 105 — Future of Containers
Every Chapter Includes
Each chapter follows the same professional structure:
- Learning Objectives
- Prerequisites
- Theory
- Internal Working
- Architecture
- Mermaid Diagrams
- ASCII Diagrams
- Flowcharts
- Commands & CLI Reference
- Dockerfile Examples
- Docker Compose Examples
- Bash Scripts
- Python Examples
- Real-world Examples
- Production Examples
- Best Practices
- Performance Optimization
- Security Notes
- Common Mistakes
- Troubleshooting Guide
- FAQs
- Hands-on Labs
- Mini Projects
- Exercises
- Quiz
- Interview Questions
- Challenge Problems
- Cheat Sheet
- Summary
- References
- Further Reading
- Revision Notes
- Glossary
Estimated Course Size
- 16 Modules
- 105 Chapters
- 2,500+ Pages
- 1,000+ Docker Commands
- 500+ Practical Examples
- 150+ Diagrams
- 100+ Hands-on Labs
- 50+ Production Case Studies
- 20+ End-to-End Projects
- Comprehensive Interview Preparation
Final Outcome
After completing this learning track, you will be able to:
- Build, run, and manage Docker containers
- Create optimized Docker images
- Design multi-container applications
- Manage Docker networking and storage
- Secure Docker environments
- Deploy production-ready applications
- Integrate Docker into CI/CD pipelines
- Prepare applications for Kubernetes
- Troubleshoot complex Docker environments
- Confidently pass Docker and DevOps interviews