Go through the following steps:
- Update the apt package index:
$ sudo apt-get update
- Install the packages to allow apt to use a repository over HTTPS:
$ sudo apt-get install
apt-transport-https
ca-certificates
curl
software-properties-common
- Add Docker's official GPG key:
$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
OK
Verify that we have the correct key installed:
$ sudo apt-key fingerprint 0EBFCD88
pub rsa4096 2017-02-22 [SCEA]
9DC8 5822 9FC7 DD38 854A E2D8 8D81 803C 0EBF CD88
uid [ unknown] Docker Release (CE deb) <[email protected]>
sub rsa4096 2017-02-22 [S]
- Add the Docker apt repository using the stable channel:
$ sudo add-apt-repository
"deb [arch=amd64] https://download.docker.com/linux/ubuntu
$(lsb_release -cs)
stable"
If you want more frequent updates, and you don't mind a few bugs, you can use the nightly test channel. To use the test channel, all you need to do is change stable to test in the preceding command.
- Update the apt package index so that it includes the Docker repository we just added:
$ sudo apt-get update
- Install the latest version of Docker CE:
$ sudo apt-get install docker-ce
- Verify that the installation worked:
$ sudo docker container run hello-world