Ubuntu's apt repository has a package called 'docker'

[sssheridan]

File: engine/install/ubuntu.md

This page reads:

Installation methods

You can install Docker Engine in different ways, depending on your needs:

• Most users set up Docker’s repositories and install from them, for ease of installation and upgrade tasks. This is the recommended approach.
• Some users download the DEB package and install it manually and manage upgrades completely manually. This is useful in situations such as installing Docker on air-gapped systems with no access to the internet.

Issue

This omits a significant option: sudo apt install docker. This will be the option chosen by a) users taking a shot in the dark before firing up the ol' Google, and b) users who prefer not to fill their apt with lots of additional repositories, if they can help it. I fit both.

I have installed Docker through sudo apt install docker on both Ubuntu 20.04 "focal" on x86_64 WSL, and on Ubuntu 22.04 "jammy" on arm64 (a Raspberry Pi 4).

Suggestion

This "Install on Ubuntu" page should:

• List sudo apt install docker as an option, and
• If it's preferable to use Docker's own repository instead (e.g. if the default repo doesn't update frequently, or whatever), then explain that.

Scope

I am raising this issue for the "Install Docker Engine on Ubuntu" page. It is also relevant to "Install Docker Compose on Ubuntu" (issue opened there), and might also be relevant to "Install Docker [Engine|Compose] on [Debian|etc.]".

More info

Excerpt from apt search docker on Ubuntu 20.04:

docker/focal 1.5-2 all
  transitional package

docker-compose/focal 1.25.0-1 all
  Punctual, lightweight development environments using Docker

docker-doc/focal-updates 20.10.12-0ubuntu2~20.04.1 all
  Linux container runtime -- documentation

docker-registry/focal 2.7.1+ds2-7 amd64
  Docker toolset to pack, ship, store, and deliver content

docker.io/focal-updates 20.10.12-0ubuntu2~20.04.1 amd64
  Linux container runtime