official docker-compose.yml file example: https://docs.docker.com/compo.
in the official example, networks looks like this:
networks:
frontend:
backend:
question:
networks what does the value of frontend , backend mean? Other examples from Baidu are written in a variety of ways.
frontend and backend are custom network that need to be created manually (for example: docker network create frontend )
this allows you to declare and use
in the compose file. I gave a detailed answer to the question next door:
https://codeshelper.com/q/10.
networks in docker-compose.yml file is only supported by version 1 or above. And you need to create it with the docker network create [name] command before you can use it in docker-compose.yml, and you must formulate external:true .
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