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Docker Compose in Depth

Docker Compose lets you define and run multi-container applications with a single YAML file. This module goes beyond the basics -- covering file structure, secrets management, startup orchestration, multi-environment overrides, and production deployment workflows.

Compose at a Glance

What You Will Learn

LessonWhat It Covers
Compose File StructureAnatomy of a compose file, key properties, and essential commands
Environment Variables and SecretsSeparating config from secrets safely
Dependency Order and HealthchecksEnsuring services start in the right order
Multi-Environment OverridesManaging dev, staging, and production with override files
Production Compose WorkflowDeploying, verifying, and rolling back Compose stacks

Prerequisites

  • Understand Docker networking and DNS (Module 5)
  • Understand volumes and data persistence (Module 6)