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For those who are just looking for the commands to run to install Docker and docker compose on Ubuntu, here they are all listed together. We will go into more detail on how these commands work and what these commands do in subsequent sections.
To install Docker and docker compose on Ubuntu, issue the following commands in a terminal window:
Let’s break down these Docker and docker compose install command for Ubuntu into more detail. Here are the basic steps you need to follow to install Docker and docker compose on Ubuntu:
The first set of Docker install commands simply configures your Ubuntu instance with the required prerequisites:
After the prerequisites are met, you must download the Docker’s GNU Privacy Guard key, and then update Ubuntu’s references to the Docker software repository.
The following two commands first create a folder to hold the Docker GPG file, and then download the key into that folder.
After the key is downloaded, configure the local references to the remote Docker repository with this intimidatingly long command:
The command to setup Docker and docker compose actually installs four pieces of software on Ubuntu:
This example installs Docker 20 on Ubuntu 22.
Once you install Docker and docker compose, you can issue various commands in the terminal window. Popular commands to test the Docker setup on Ubuntu include:
This example installs docker compose 2.5 on Ubuntu 22.
And that’s how easy it is to setup and install Docker and docker compose on Ubuntu.
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