How network work in docker-compose?

How network works in docker-compose?

docker-compose creates a set of containers, brings them up along with a private network. The network is very interesting because a private network is essential to compose & test a microservice bases system.

I found the post https://medium.com/@caysever/docker-compose-network-b86e424fad82 quite useful.

Post Highlights

• docker-compose creates a default network, if no network is specified.
• The name of the network is <local dir>_default.
• The default network type is bridge.

Bridge Network

A bridge is a layer 2 component. It understands segments and uses a hardware/software switch/bridge.

Host Network

Use the host network namespace. It is preferred for achieving high performance. It works on Linux only.

References-

• https://docs.docker.com/network/host/
• https://docs.docker.com/compose/networking/
• https://medium.com/@caysever/docker-compose-network-b86e424fad82