How to install and configure Docker in Ubuntu?

Install Docker from Ubuntu Repository

• $ sudo apt install docker.io

Below command will start Docker and ensure that starts after the reboot:

• $ sudo systemctl start docker
• $ sudo systemctl enable docker
• $ docker -version

Output:

Docker version 17.03.2-ce, build f5ec1e2

Docker Login

• $ sudo docker exec -it docker /bin/bash

Install the Dependencies

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

Add Docker Repository

Create a new file for the Docker repository at /etc/apt/sources.list.d/docker.list. In that file, place one of the following lines choosing either stable, nightly or edge builds:

• sudo add-apt-repository “deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable”

Next, you need to add Docker’s GPG key.

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