Uninstall Gateway Hub nodes
Overview Copied
This document guides you through how to uninstall nodes in a Gateway Hub installation. To perform uninstall commands, you need the installation configuration file.
Uninstall nodes Copied
You can uninstall Gateway Hub using the hubctl command. This command uninstalls all the nodes specified in the installation configuration file in the hosts list or linked hosts_file.
For more information about the installation configuration file, see Install.
In environments where you cannot connect to all nodes in the cluster, you can remove specific nodes by editing the hosts list or linked hosts_file. This allows you to uninstall the Gateway Hub in stages.
Caution
You cannot perform partial uninstallations. Removing a node unexpectedly will break the cluster.
To uninstall Gateway Hub, run:
hubctl setup uninstall config.yaml
This lists the nodes selected for removal and prompts for confirmation.
###########################################################################
# WARNING ! You are about to completely uninstall the Hub from all nodes. #
###########################################################################
Proceed ? [y/N]
Performing the uninstallation stops all processes and removes all programs and data associated with Gateway Hub on each node. You must also reboot each node to ensure temporary files and other miscellanea are removed.
After a completed uninstallation, the following prompt is displayed:
Some data is retained when uninstalling to avoid losing valuable information. You must remove these directories manually if required.
Systemd Copied
If you have registered the Gateway Hub orchestration service with systemd, then additional steps are required. For more information about using systemd, see Registration with systemd in Install.
The uninstaller will detect if you have registered the orchestration service with systemd and provide instructions to unregister the service: