How do containers communicate in Docker?

How do containers communicate in Docker?

Containers in Docker can communicate with each other using several methods, such as using the default bridge network, user-defined networks, or by exposing ports.

What is the default bridge network?

The default bridge network is a private internal network created by Docker. Containers connected to this network can communicate with each other using their IP addresses.

Can I create my own network for containers?

Yes, you can create your own user-defined networks in Docker, which allows for better isolation and control over container communication.

How do I expose a port for a container?

You can expose a port by using the -p flag when running a container, like this: docker run -p hostPort:containerPort.