Symptoms
Cannot re-install Docker extension in Plesk:
dpkg: error processing package docker-ce (--configure):
installed docker-ce package post-installation script subprocess returned error exit status 1
docker-ce packages appear as installed but not configured:
# dpkg -l |grep docker
iF docker-ce 5:23.0.0-1~ubuntu.18.04~bionic amd64 Docker: the open-source application container engine
ii docker-ce-cli 5:23.0.0-1~ubuntu.18.04~bionic amd64 Docker CLI: the open-source application container engine
Errors in /var/log/syslog:
level=error msg="[graphdriver] prior storage driver aufs is deprecated and will be removed in a future release; update the the daemon configuration and explicitly choose this storage driver to continue using it; visit https://docs.docker.com/go/storage-driver/ for more information"
Cause
Storage driveraufshas been deprecated by Docker on the latest update, this makes the Docker service to fail during re-installation. This is Docker extension bug EXTDOCKER-160 that has been fixed in version 1.5.6.
Resolution
Update Docker extension.