Install Docker Compose on AlmaLinux 8

In this guide, we want to teach you to Install Docker Compose on AlmaLinux 8.

Docker Compose is a tool that assists in defining and sharing multi-container applications. By using Compose, we can define the services in a YAML file, as well as spin them up and tear them down with one single command.

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Steps To Install Docker Compose on AlmaLinux 8

Steps To Install Docker Compose on AlmaLinux 8

To complete this guide, you must log in to your server as a non-root user with sudo privileges. To do this, you can follow our guide on Initial Server Setup with AlmaLinux 8.

Also, you need to have Docker installed on your server. To do this, you can follow this guide on How To Install Docker on AlmaLinux 8.

Now follow the steps below.

Set up Docker Compose on AlmaLinux 8

First, verify your Docker installation by checking its version:

docker --version

Output
Docker version 23.0.3, build 3e7cbfd

Download Docker Compose Binary

Att his point, you need to visit the GitHub Docker Compose release page and use the curl command to the latest binary package:

sudo curl -L "https://github.com/docker/compose/releases/download/v2.17.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

This will download your Docker compose binary package under /usr/local/bin directory.

Docker Compose File Permission

At this point, you need to set the correct permissions for your Docker compose directory on AlmaLinux 8 with the following command:

sudo chmod +x /usr/local/bin/docker-compose

Verify Docker Compose Installation

Now you can check your Docker compose installation by checking its version:

sudo docker compose version

Output
Docker Compose version v2.17.2

How To Use Docker Compose on AlmaLinux 8

To see that Docker Compose is working correctly, we want to test it with a sample Docker container.

First, create a new directory for setting up the docker-compose file with the command below:

mkdir compose-test

Switch to your directory:

cd compose-test

Then, you need to create a docker-compose.yml file. This is a configuration file in which you will describe the container’s information such as services, port bindings, networks, environment variables, and volumes.

To create the file, you can use the following command or use your favorite text editor, here we use the vi editor:

sudo vi docker-compose.yml

Add the following basic hello-world container based on the latest hello-world image:

version: '2'
services:
   hello-world:
      image:
         hello-world:latest

When you are done, save and close the file.

Next, launch the container within the ‘compose-test’ directory:

sudo docker compose up

Output
 ✔ hello-world 1 layers [⣿]      0B/0B      Pulled                         2.6s
   ✔ 2db29710123e Pull complete                                            0.6s
[+] Running 2/1
 ✔ Network compose-test_default          Created                           0.2s
 ✔ Container compose-test-hello-world-1  Created                           0.1s
Attaching to compose-test-hello-world-1
compose-test-hello-world-1  |
compose-test-hello-world-1  | Hello from Docker!
compose-test-hello-world-1  | This message shows that your installation appears to be working correctly.
...

From the output, you should see that your Docker compose is working correctly on AlmaLinux 8.