Installing Docker on Ubuntu 20.04 for Containerization

Docker is a popular platform for developing, shipping, and running applications in containers. This guide will help you install Docker on your Ubuntu 20.04 server.

Step 1: Update Packages

Before installing Docker on Ubuntu 20.04, you should update your installed packages. Execute the following commands:

sudo apt update sudo apt upgrade

Step 2: Install Necessary Packages

Installing Docker requires installing a few additional packages. Enter the following commands:

  • sudo apt install apt-transport-https ca-certificates curl software-properties-common

Step 3: Add the Official Docker Repository

First, add the GPG key for the official Docker repository:

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

Next, add the Docker repository to your APT sources list:

sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"

Step 4: Install Docker

Now install Docker on Ubuntu 20.04 using the following command:

sudo apt update sudo apt install docker-ce

Step 5: Start the Docker Service

After installing Docker, enable and start the Docker service:

sudo systemctl enable docker sudo systemctl start docker

Docker is now installed and ready to use on your Ubuntu 20.04 server. Enjoy containerization and simplified application development!