Docker Tutorials: How to Install Docker in Ubuntu?

Install Docker Engine in Ubuntu

NOTE – All commands you must run as root user or add a current user into a linux group name called “docker”

How to beocme a root?

$ sudo -s

How to add current user into docker groups

$ sudo usermod -aG docker $USER

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

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