Phase 16 · Docker & Containers
TopicsNetworking in Docker
Part of the Backend Developer Roadmap.
Summary
How containers communicate with each other and the outside world — Docker's default bridge networks let containers reach each other by service name within the same Compose setup.
How to Learn This
- 1Confirm two containers in the same Compose file can reach each other by service name.
- 2Learn how port mapping (`-p 3000:3000`) exposes a container's port to your host machine.
- 3Explore Docker's network types: bridge, host, none.
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