Learn DOCKER-COMPOSE with Real Code Examples

Web application with Nginx, Node.js, and Redis

Database and API service integration

Local development stack for microservices

Running CI/CD test environments in containers

Multi-container application with persistent volumes

Check container logs with `docker-compose logs`

Ensure correct image and tag

Verify port mappings do not conflict

Inspect network connectivity between services

Check volume mount paths and permissions

Run `docker-compose up` in test environment

Use `docker-compose exec` to test inside containers

Check logs with `docker-compose logs`

Mock external services with additional containers

Validate service interconnections and networking

Local development with `docker-compose up`

Swarm mode for multi-node scaling

CI/CD pipelines for automated deployments

Docker Stack deploy using Compose file

Custom scripts for production container orchestration

Docker CLI

Docker Compose CLI

Docker Desktop

Visual Studio Code Docker extension

CI/CD integration (GitHub Actions, GitLab CI)

Docker Engine

Docker Swarm for scaling

CI/CD pipelines for automated testing

Monitoring tools like cAdvisor or Portainer

Custom scripts for service orchestration

Use `.env` files for dynamic configuration

Build lightweight images to reduce startup time

Use `depends_on` to manage service startup order

Leverage `docker-compose.override.yml` for environment-specific config

Regularly prune unused containers, networks, and volumes

Debugging container connectivity

Managing environment variables and secrets

Scaling beyond single-host

Persistent storage and volume management

Optimizing container images for speed and size