Unable to use Docker in Plesk on AlmaLinux 9: Local Docker node is missing

Symptoms

• The following warning message is shown on Docker extension page:

  Warning: Local Docker node is missing. Refer to this KB article to resolve this issue.
  The ability to work with remote nodes is available only in the paid version of the extension. You can buy the extension here

• Docker extension with version lower than 1.9.0 is installed on AlmaLinux 9.

Cause

Unsupported version of Docker extension is installed on the server. Support for Docker on Almalinux 9 was added since Docker extension version 1.9.0.

Resolution

• Update Plesk Docker extension to 1.9.0 or later

In case the extension update is not possible for any reason, consider to use Docker on any Plesk server running one of the following operating systems:

• AlmaLinux 8.x and Rocky Linux 8.x.
• CentOS 7
• RHEL 7
• Debian 10
• Debian 11
• Ubuntu 18.04
• Ubuntu 20.04 (also on ARM based server)
• Ubuntu 22.04 (also on ARM based server)
• Virtuozzo 7 with Update 1 Hotfix 1 (7.0.1-686) or later.

Or use remote Docker service to Plesk instead.