How to Install Docker Compose on Ubuntu 22.04
Docker Compose is a tool that allows users to define and manage multi-container Docker applications using a simple YAML configuration file. It helps in automating container deployment, networking, and storage.
This guide will show you how to install Docker Compose on Ubuntu 22.04, test it with a simple Hello World container, and remove unnecessary images if needed.
Step 1: Update Your System
Before installing Docker Compose, update the system packages.
sudo apt update && sudo apt upgrade -y
Step 2: Install Required Dependencies
Docker Compose requires curl to download the latest version. Install it using:
sudo apt install -y curl
Step 3: Install Docker Compose
Download the latest Docker Compose binary from the official GitHub repository.
sudo curl -L “https://github.com/docker/compose/releases/latest/download/docker-compose-$(uname -s)-$(uname -m)” -o /usr/local/bin/docker-compose
Set the correct permissions to make it executable.
sudo chmod +x /usr/local/bin/docker-compose
Verify the installation by checking the version.
docker-compose –version
If the installation was successful, it will display the version of Docker Compose installed.
Step 4: Test Docker Compose with a Container
Create a new directory for the Hello World test container.
mkdir hello-world
cd hello-world
Create a docker-compose.yml file.
nano docker-compose.yml
Add the following content:
my-test:
image: hello-world
Save and exit the file.
Run Docker Compose to start the container.
docker-compose up
If Docker Compose is working correctly, you will see a message saying “Hello from Docker.”
Step 5: Remove Test Container and Image (Optional)
To clean up the test container, first remove it using its container ID.
List all containers.
docker ps -a
Remove the container by replacing <container-id> with the actual ID.
docker rm
Now remove the Hello World image.
docker rmi hello-world
Conclusion
You have successfully installed Docker Compose on Ubuntu 22.04 and tested it with a simple Hello World container.
Would you like help with deploying a real-world Docker Compose application, troubleshooting containers, or optimizing performance? Let me know! 🚀
