Docker Compose

Course Description

This course is your comprehensive guide to mastering Docker Compose, the essential tool for defining and running multi-container Docker applications. You'll start with the fundamentals, understanding the motivation behind Compose and its core architecture. Through a series of hands-on labs and code examples, you will learn to write clean and effective docker-compose.yml files to manage services, configure networking, and handle data persistence with volumes. The course culminates in composing and launching several real-world, multi-service applications, including Java Spring and Python Flask stacks, streamlining your entire development workflow.

Who is this course for

This course is designed for individuals who are comfortable with single-container Docker operations and are ready to manage complex, multi-service applications. It is perfect for:

• Software Developers: Who work with microservices or applications that have separate database or caching layers.

• DevOps Engineers: Responsible for creating consistent development, testing, and staging environments.

• System Administrators: Who need to deploy and manage applications composed of multiple interconnected containers.

Course Objectives

Upon successful completion of this course, you will be able to:

• Master Docker Compose Fundamentals: Explain the purpose and architecture of Docker Compose and write your own docker-compose.yml files.

• Orchestrate Multi-Container Services: Define, run, and manage the lifecycle of complex applications with multiple services.

• Implement Advanced Configurations: Configure health checks, set resource constraints, and manage application secrets and configurations.

• Control Networking and Volumes: Define custom networks for inter-container communication and manage persistent data using volumes within Compose.

• Deploy Real-World Applications: Assemble and launch complete application stacks, such as a Python web app with a database and a Java Spring application.

Prerequisites

To succeed in this course, you must have:

1. Solid Docker Proficiency: You should be comfortable building images with Dockerfiles and managing single containers using docker commands.

2. Command-Line Proficiency: You must be proficient in using a terminal or command prompt.

3. A Working Docker Environment: You need Docker and Docker Compose installed and running on your system to complete the hands-on labs.

4. Basic YAML Familiarity (Helpful): While not required, a basic understanding of YAML syntax will be beneficial.

Course outline

Section 1: Docker Compose Fundamentals

1. The Motivation for Docker Compose

2. Introduction to Docker Compose

3. Docker Compose Architecture and File Structure

4. Hands-on Lab: Docker Compose Installation

5. Code Example: Defining Services in Docker Compose

6. Hands-on Lab: Docker Compose Basic Operation Commands

Section 2: Advanced Docker Compose Configuration

1. Hands-on Lab: Implementing Health Checks in Compose

2. Hands-on Lab: Setting Runtime Constraints on Resources

3. Hands-on Lab: Composing a WordPress site with a MariaDB Database

Section 3: Networking in Docker Compose

1. Introduction to networking in Docker compose

2. CODE Configuring network in docker compose

Section 4: Volume in Docker Compose

1. Introduction to Docker Volumes in Compose

2. CODE Declaring types of Volumes in Docker Compose

3. CODE Docker Compose Volume Configuration Options

4. HOL Multi-container docker volume in docker compose Web Application monitoring with Log Monitoring

Section 5: Composing Apps

1. HOL Composing Java Spring mysql Goldenwaste App

2. HOL Composing Todo-list Python Flask App with MySQL and Nginx

3. HOL Composing Python Flask Bootstrap Weather Utility App

Testimonials