Docker and CI/CD · Junior · Question 69 of 75

Why can't two containers on the default bridge reach each other by name?

✓Correct answer: Name resolution works only on user-defined networks
2Names are resolved only inside Docker Swarm
3Containers can never talk to each other directly

Explanation

Create a network (docker network create app) and attach both containers; Compose does this automatically for its services.

Further reading

Docker Docs: Networking overview ↗

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