How to install docker-compose

Docker is a popular container technology that makes it easy to run multiple applications on one operating system without compromising each other's operating environment. docker-compose is a tool for defining and running Docker applications. It can manage the deployment and running of multiple Docker containers through a single docker-compose.yml file. This article will show you how to install docker-compose.

1. Preparation

Before installing docker-compose, you need to confirm that you have installed Docker. You can run the following command in the command line to check your Docker version:

docker version

If you have not installed Docker, please visit [Docker official website](https://www.docker.com/) to download and install Docker.

2. Download docker-compose binary file

docker-compose is a Python program that can be installed through the pip tool. However, pip may fail due to network environment and other reasons. To be safe, we will use the official binaries to install docker-compose.

You can find the latest docker-compose version on [Docker official website Github page](https://github.com/docker/compose/releases). In this article, we will install version 1.29.2. Run the following command in your terminal window to download and install docker-compose:

sudo curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

This command will download the docker-compose binary from Github and copy it to the /usr/local/bin directory . After the installation is complete, you can check whether docker-compose has been successfully installed by running the following command:

docker-compose --version

If the version information can be output normally in the terminal window, it means that docker-compose has been successfully installed.

3. Configuring docker-compose environment variables

In order to use docker-compose more conveniently, we need to add the docker-compose path to the system's environment variables. You can add the docker-compose path to your environment variables by running the following command:

sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose

This command will create a symbolic link to the docker-compose binary, making it available in any directory. Once the installation and configuration is complete, you can start using docker-compose to manage and run Docker containers.

Conclusion

This article introduced you how to install docker-compose and configure environment variables to use it more conveniently. Docker and docker-compose are very important technologies in the field of modern cloud computing, which can significantly improve the deployment efficiency and performance of applications. We hope this article was helpful and gave you a better grasp of these technologies.

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