Docker Containerization: DevOps Foundation

Step 5 of the DevOps Roadmap

Learn about containerization. Be comfortable writing dockerfiles. Learn to troubleshoot. Get familiar with Alpine Linux. Learn about security, network and storage. Learn docker, networking, storage, and security.

Why Docker for DevOps?

Containerization revolutionizes DevOps by providing:

• Consistent environments across development, testing, and production
• Simplified application deployment and scaling
• Resource efficiency and isolation
• Microservices architecture enablement
• Cloud-native application development

What You'll Learn

Docker Fundamentals

• Container Concepts

  • Containers vs Virtual Machines
  • Docker architecture and components
  • Images, containers, and registries
  • Container lifecycle management

• Docker Installation & Setup

  • Docker Engine installation
  • Docker Desktop for development
  • Docker Compose setup
  • Registry configuration

Dockerfile Mastery

• Writing Efficient Dockerfiles

  • Dockerfile syntax and instructions
  • Multi-stage builds for optimization
  • Layer caching strategies
  • Best practices for small images

• Base Image Selection

  • Alpine Linux for minimal images
  • Official image repositories
  • Security considerations
  • Image scanning and vulnerability management

Container Orchestration

• Docker Compose

  • Multi-container applications
  • Service definitions and networking
  • Volume management
  • Environment configuration

• Container Networking

  • Docker network types
  • Custom network creation
  • Container communication
  • Load balancing strategies

Storage & Data Management

• Docker Volumes

  • Volume types and use cases
  • Data persistence strategies
  • Backup and restore procedures
  • Performance considerations

• Bind Mounts & tmpfs

  • Host filesystem integration
  • Development workflow optimization
  • Memory-based storage
  • Security implications

Security Best Practices

• Container Security

  • Image vulnerability scanning
  • Runtime security monitoring
  • User namespace isolation
  • Resource constraints

• Security Hardening

  • Non-root user containers
  • Secrets management
  • Network security policies
  • Compliance and governance

Production Deployment

• Container Registries

  • Docker Hub and private registries
  • Image tagging strategies
  • Automated image builds
  • Registry security

• Monitoring & Logging

  • Container health checks
  • Log aggregation strategies
  • Performance monitoring
  • Troubleshooting techniques

Hands-on Projects

Project 1: Microservices Architecture

Build a complete microservices application:

• Multi-container web application
• Database integration with persistence
• API gateway and service discovery
• Inter-service communication

Project 2: CI/CD Pipeline with Containers

Create automated deployment pipeline:

• Automated Docker image builds
• Multi-stage deployment process
• Container testing strategies
• Production deployment automation

Project 3: Container Monitoring System

Develop comprehensive monitoring solution:

• Container health monitoring
• Resource utilization tracking
• Log aggregation and analysis
• Alert system implementation

Project 4: Secure Container Platform

Build enterprise-ready container platform:

• Multi-tenant container isolation
• Security scanning automation
• Compliance reporting
• Disaster recovery procedures

Course Modules

Module 1: Docker Basics

• Container fundamentals
• Docker installation and setup
• Basic container operations
• Image management

Module 2: Dockerfile & Images

• Writing effective Dockerfiles
• Multi-stage builds
• Image optimization techniques
• Security considerations

Module 3: Networking & Storage

• Docker networking concepts
• Volume management
• Data persistence strategies
• Performance optimization

Module 4: Orchestration & Production

• Docker Compose mastery
• Production deployment strategies
• Monitoring and troubleshooting
• Security hardening

Lab Environment

• Docker-enabled virtual machines
• Multi-container application scenarios
• Container registry access
• Production-like environments

Prerequisites

• Required: All previous DevOps courses (1-4)
• Strong Linux command line skills
• Understanding of networking concepts
• Basic application architecture knowledge

Learning Path

This is the fifth course in the DevOps roadmap. After completing this course, continue with:

1. AWS Cloud Platform - Cloud infrastructure
2. Terraform Infrastructure as Code - Infrastructure automation
3. Ansible Configuration Management - Configuration automation

Tools & Technologies

• Docker Engine and CLI
• Docker Compose
• Docker Desktop
• Various container registries
• Container monitoring tools

Advanced Topics Covered

• Container orchestration patterns
• Service mesh integration
• Kubernetes preparation
• Cloud-native development
• DevSecOps practices

Real-world Applications

• Microservices deployment
• Legacy application modernization
• Development environment standardization
• Continuous integration pipelines
• Cloud migration strategies

Industry Integration

• Kubernetes ecosystem preparation
• Cloud provider container services
• Enterprise container platforms
• DevOps toolchain integration

Certification

Upon completion, you'll receive a certificate demonstrating your Docker containerization expertise essential for modern DevOps infrastructure.

Containerize your way to DevOps success with Docker mastery!