Docker installation on Ubuntu

Here is a guide to install Docker on Ubuntu.

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Install docker and its dependencies

The following packages are required to install Docker properly:

sudo apt-get install -y ca-certificates gnupg lsb-release

Add Docker repository

And the last command adds the Docker repository to the sources list.

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg

echo \
    "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu \
    $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

Install Docker

Update the package index and install Docker:

sudo apt-get update -y && sudo apt-get upgrade -y
sudo apt-get install -y docker-ce docker-ce-cli containerd.io

Verify the installation

Execute the following command to check the Docker version:

docker -v

You should see output similar to:

# Docker version 25.0.3, build 4debf41

Note

The docker version may vary depending on the latest release.

Permissions

allow usage of docker as non-root user

Create the docker group if doesn't exist:

sudo groupadd docker

Add user to docker group

sudo usermod -aG docker $USER

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You have successfully installed Docker on Ubuntu. You can now start using Docker to create and manage containers on your system.

Install docker-compose and its dependencies

If you want to install Docker Compose, you can follow the instructions here.