How can containers on the same network communicate with each other?

Containers on the same network can communicate with each other using their container names as hostnames. When containers are connected to the same Docker network, they can resolve each other's names to their respective IP addresses automatically.

Here’s how you can enable communication:

1. Create a Network: First, create a custom network if you haven't already:

   docker network create my-network

2. Run Containers on the Same Network: Start your containers and connect them to the same network:

   docker run -d --name container1 --network my-network my-image
   docker run -d --name container2 --network my-network my-image

3. Communicate Using Container Names: Inside container1, you can ping or connect to container2 using its name:

   docker exec -it container1 ping container2

This setup allows for seamless communication between containers on the same network.