Using Docker – Requirements and Limitations

Docker is supported in Plesk for the following operating systems:
CentOS 7, RedHat 7, Debian 8, Debian 9, Ubuntu 16.04, and Ubuntu 18.04.

In Plesk for Windows, you can use Docker installed on a remote
machine (see Using Remote Docker further in this section).

You cannot use Docker in Plesk running on Windows Server 2008.

You cannot use Docker in Plesk that is deployed in a Docker
container.

To use remote Docker services in Plesk, you need an additional
license. It can be purchased either
separately or as a
part of the Hosting
Pack.

Docker runs only on x64 systems.

Docker containers in Plesk cannot be migrated or backed up. However,
you can back up data used by containers (see Volume Mapping
below), or download snapshots.

Virtuozzo 7 with Update 1 Hotfix 1
(7.0.1-686)
or later installed is supported. Note that starting with this update,
new containers based on CentOS 7 are created with the firewall
enabled by default due to Virtuozzo pushing for increased security.
Plesk administrator must manually configure the firewall to ensure
that ports necessary for Plesk to
operate
are open.