Install docker on Ubuntu 22.x

In this post, we will try to install Docker on Ubuntu 22.x Docker is a containerization platform
and Ubuntu is a Linux-based operating system.

Update the system

sudo apt update

It’s important to get the new updates on your operating system such that nothing breaks when we install software on the operating system.

sudo apt install apt-transport-https curl gnupg-agent ca-certificates software-properties-common -y

You need to have the dependencies installed before installing the Docker.

In -y option in the apt install command will install the dependencies automatically without asking for Yes or No in the prompt

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu focal stable"

You need to add the above repository because docker binaries will be installed from here.

sudo apt install docker-ce docker-ce-cli containerd.io -y

You will be installing the community edition of docker so we are using docker-ce and docker-ce-cli

sudo usermod -aG docker $USER

sudo chmod 666 /var/run/docker.sock

docker version

This will output the version of Docker.

sudo systemctl status docker

You can check the status of the Docker daemon. This will help you to know that docker is running or not.

sudo systemctl start docker

You can start docker using the above command

sudo systemctl enable docker

When your operating system restarts/starts then Docker will automatically start if you enable it using the systemctl command

sudo systemctl restart docker

You can restart the docker daemon using the above command

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