How To Install Docker on Ubuntu

Update the apt package index and install packages to allow apt to use a repository over HTTPS:

 sudo apt-get update   sudo apt-get install \
    ca-certificates \
    curl \
    gnupg \
    lsb-release

 

Add Docker’s official GPG key:

 sudo mkdir -p /etc/apt/keyrings  curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

Use the following command to set up the repository:

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

Install docker engine : Update the apt package index, and install the latest version of Docker Engine, containerd, and Docker Compose, or go to the next step to install a specific version:

 sudo apt-get update
 sudo apt-get install docker-ce docker-ce-cli containerd.io docker-compose-plugin

 

Verify that Docker Engine is installed correctly by running the hello-world image.

sudo service docker start
sudo docker run hello-world


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How To Install Docker on Ubuntu
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