Docker page in Plesk UI shows the following warning:
PLESK_WARN: Warning: Local Docker nodes cannot be deployed in this environment. Only remote Docker nodes are available. Refer to this document for more information about the environment suitable for local Docker nodes. You can use remote Docker nodes only if you have paid version of the Docker extension. You can buy the extension here.
Docker is launched on the unsupported OS.
To use Docker, consider using Plesk with an operating system that supports it:
- CentOS 7
- RedHat 7
- Debian 9
- Ubuntu 16.04
- Ubuntu 18.04
- Virtuozzo 7 with Update 1 Hotfix 1 (7.0.1-686) or later.
Also, Docker runs only on x86_64 systems.
For more information, refer to Official Plesk Documentation.
Note: Vote for Docker support on CloudLinux systems: Docker support for CloudLinux