We'll cover published ports, IP addresses, gateways and how Docker Compose makes DNS entries for each service.

Nick Janetakis's blog provides insights into web development, Docker, and technology tutorials. Readers can find articles covering topics such as containerization, cloud computing, and serverless architectures. Additionally, they can learn about web development frameworks, deployment strategies, and best practices for building scalable applications.

Nick Janetakis

Docker Compose automatically creates networks and DNS entries for services, enabling containers to communicate using service names like 'web:8000' or 'db:5432'. Each service gets assigned an IP address on a bridge network with automatic DNS resolution. The post demonstrates how to inspect network configurations, understand IP addressing, use custom aliases, and leverage the gateway IP for host communication through practical examples with curl requests between containers.

Networking Basics with Docker Compose — Nick Janetakis