How to Install Docker on Ubuntu

How to Install Docker on Ubuntu

To install Docker on Ubuntu, you can follow the simple steps below:

1. Update the apt package index:

sudo apt-get update

2. Install the packages necessary to allow apt to use a repository over HTTPS:

sudo apt-get install apt-transport-https ca-certificates curl gnupg lsb-release

3. Add Docker’s official GPG key:

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

4. Set up the stable Docker repository:

echo "deb [arch=amd64 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

5. Update the apt package index again:

sudo apt-get update

6. Install Docker:

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

7. Verify that Docker has been installed correctly:

sudo docker run hello-world

This should display a message confirming that Docker has been installed and is running correctly.

That’s it, docker is installed.