How to upgrade Docker using Rancher's install script

This document (000020170) is provided subject to the disclaimer at the end of this document.

Environment

A supported node with a version of Docker needing to be upgraded
Curl or Wget installed

Situation

Rancher provides quick scripts for installing Docker, which are available for the most recent versions of Docker https://rancher.com/docs/rancher/v2.x/en/installation/requirements/installing-docker/ Upgrading Docker on your machine using these scripts is equally as simple.

Resolution

Just run the script with the version number you are trying to upgrade to. Let's say you're running 18.09 and want to upgrade to 19.03. Simply provide the version number as the name of the script to run. For example:

curl https://releases.rancher.com/install-docker/27.2.sh | sh

wget -O- https://releases.rancher.com/install-docker/27.2.sh | sh

This will throw a warning that Docker is already installed, stop the running Docker engine, and upgrade your version. Note that restarting Docker will also stop any running container or workloads running on this host.

Disclaimer

This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.