Get docker release version - string required for installation
You can use apt-cache madison docker-ce command.The version string is in the second column.
Source: https://docs.docker.com/install/linux/docker-ce/ubuntu/#install-docker-ce-1
As specified in INSTALL DOCKER CE, you can install a specific version using:
sudo apt-get install docker-ce=<VERSION>You can check the list of available versions via:
apt-cache madison docker-ceThe second column of the output specifies the version that you can substitute in the apt-get install command.