How do you create a custom network and configure a Docker Compose service to use this network?

Experience Level: Junior
Tags: Docker Compose

Answer

Add networks block to the root level of the Docker Compose file together with a network name.
Add networks block to the service and add a network-name to it.
The file should look similar to this:

version: "3.4"
services:
  my-service:
    image: busybox
    networks:
      - my-network
networks:
  my-network:
    name: my-network

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