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Docker Compose is a tool for defining and running multi-container Docker applications. Through a YAML file, you can configure all the services required by your application and create and start them with a single command. The following is a detailed introduction to Docker Compose:

Core idea

Services

A service is an abstraction for running a container. Each service runs an image and can contain configuration options for the container, such as port mappings, environment variables, volume mounts, etc.

Networks

Services in Compose connect to a default network by default, but you can customize the network configuration to control how different services communicate with each other.

Volumes

Volumes are used to persist data generated by services. They allow you to preserve data across container restarts and share data between multiple containers.

Install Docker Compose

On Linux systems, you can install Docker Compose using the following command:

sudo curl -L "https://github.com/docker/compose/releases/download/v2.0.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
sudo chmod  x /usr/local/bin/docker-compose

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