While we hate to see you go, if you need to uninstall Dokku, the following may help you out:
This is a manual deletion process, and as it is not a recommended installation method, there is currently no automated uninstallation.
All service plugins should be unlinked from applications, stopped, and destroyed.
All applications should be stopped, and all docker containers and images deleted:
The following user/group must be deleted:
The following directories must be deleted: