How to Install Docker Compose on Linux
As a Linux user, you may have come across Docker and its various tools in your work or personal projects. Docker is a powerful platform that allows developers and IT professionals to deploy and manage containers easily.
One tool that you may find useful is Docker Compose, which is a tool that allows you to define and run multi-container Docker applications. In this article, we will cover how to install Docker Compose on Linux.
Prerequisites
Before installing Docker Compose, you need to have the Docker platform installed on your Linux computer. If you don’t have it already, you can follow the official Docker installation guide for Linux.
Additionally, it’s essential to make sure that your user account has the appropriate permissions to execute Docker commands. To do this, you need to add your user to the `docker` group by running the following command:
“`
sudo usermod -aG docker
“`
Once you’ve done this, you will need to log out and log back in to apply the changes. After logging back in, you can test if your user account has the proper permissions by running the `docker run hello-world` command.
Installing Docker Compose
Now that you have the Docker platform installed and configured, you can proceed with installing Docker Compose. There are several ways to install Docker Compose on Linux, but in this article, we will focus on the binary installation method.
1. Go to the official Docker Compose releases page on GitHub.
2. Find the latest stable version of Docker Compose and copy its download link. At the time of writing this article, the latest stable version is 1.28.6.
3. Open your terminal and navigate to a directory where you want to store the Docker Compose binary.
4. Download the Docker Compose binary by running the following command:
“`
sudo curl -L “https://github.com/docker/compose/releases/download/1.28.6/docker-compose-$(uname -s)-$(uname -m)” -o /usr/local/bin/docker-compose
“`
Note: Make sure to replace the version number 1.28.6 in the command above with the latest stable version you copied in step 2.
5. Once the download is complete, you need to set the executable permissions on the Docker Compose binary:
“`
sudo chmod +x /usr/local/bin/docker-compose
“`
6. Finally, you can test if the Docker Compose installation was successful by running the following command:
“`
docker-compose –version
“`
If everything is set up correctly, you should see the version number of the installed Docker Compose in the output.
Conclusion
In this article, we covered how to install Docker Compose on Linux using the binary installation method. With Docker Compose installed, you can define and run complex multi-container applications using a single file. Make sure to always use the latest stable version of Docker Compose for optimal performance and security.