Unable to manage local Docker containers in the Docker Plesk extension: Local Docker node is missing

Symptoms

• Unable to manage local Docker containers from the Docker extension via Plesk with the following error message:

  PLESK_WARN: 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 service is up and running:

  # service docker status | grep Active
  Active: active (running) since Tue 2018-08-07 13:39:27 CEST; 8min ago

• There are records about failed Docker installation in the Plesk logfile /var/log/plesk/panel.log:

  dpkg: error processing package docker-engine (--configure):
  subprocess installed post-installation script returned error exit status 1
  Errors were encountered while processing:
  docker-engine
  ...
  Cannot install docker-engine

Cause

The Docker installation is corrupted.

Resolution

Reinstall the Docker extension in Plesk Extensions catalog or via a comamnd-line interface:

1. Connect to the Plesk server via SSH.

2. Remove the Docker extension:

   # plesk bin extension –uninstall docker

3. Install the Docker extension:

   # plesk bin extension –install docker