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These steps install Docker Community Edition (CE) using the official Ubuntu repositories. To install on another distribution, see the official installation page.
Remove any older installations of Docker that may be on your system:
sudo apt remove docker docker-engine docker.io
Make sure you have the necessary packages to allow the use of Docker’s repository:
sudo apt install apt-transport-https ca-certificates curl software-properties-common
Add Docker’s GPG key:
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
Verify the fingerprint of the GPG key:
sudo apt-key fingerprint 0EBFCD88
You should see output similar to the following:
pub 4096R/0EBFCD88 2017-02-22 Key fingerprint = 9DC8 5822 9FC7 DD38 854A E2D8 8D81 803C 0EBF CD88 uid Docker Release (CE deb)
sub 4096R/F273FCD8 2017-02-22
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
Update your package index and install Docker CE:
sudo apt update sudo apt install docker-ce
Add your limited Linux user account to the
sudo usermod -aG docker $USER
After entering the
usermodcommand, you will need to close your SSH session and open a new one for this change to take effect.
Check that the installation was successful by running the built-in “Hello World” program:
docker run hello-world
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This guide is published under a CC BY-ND 4.0 license.