A system administrator is tasked with deploying a multi-service web application. The application's source code includes a docker-compose.yml file that defines all the necessary services, networks, and volumes. Which of the following commands should the administrator run from the directory containing the file to build, create, and start the entire application stack in the foreground?
The correct command is docker-compose up. This command is an aggregate command that automates the process of building images (if they do not already exist), creating containers, networks, and volumes, and then starting all the defined services. The docker-compose build command only builds or rebuilds the service images but does not start them. The docker-compose start command only starts existing containers that were previously created and are in a stopped state; it does not create them. The docker-compose exec command is used to execute a command inside an already running container.
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What is the purpose of a `docker-compose.yml` file?
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What happens when you run the `docker-compose up` command?
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What is the difference between `docker-compose up` and `docker-compose start`?
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