Which command is used to start services defined in a Docker Compose file?

The command used to start services defined in a Docker Compose file is "docker compose up." This command not only starts the services defined in the docker-compose.yml file but also creates the containers if they do not already exist, sets up the network, and orchestrates all the dependencies between the services.

Using "docker compose up" will ensure that all configurations set in the Docker Compose file, such as environment variables, volumes, and networks, are correctly applied. Additionally, if you use the -d flag with this command, it will start the services in detached mode, allowing you to continue using the terminal while the services run in the background.

Other commands like "docker start" or "docker run" do not relate directly to starting services defined in a Docker Compose context. "docker start" is used to start existing stopped containers individually, while "docker run" is for creating and starting a new container from an image. The command "docker compose start" can start services in a Compose project, but it assumes that the containers were already created and stopped, which is not the case when you're initially bringing the services up. Thus, "docker compose up" is the most comprehensive and commonly used command for initiating services as defined in