New GKE on-prem versions sometimes introduce a new Kubernetes version
for clusters. Version changes are announced in Release notes. To learn which
Kubernetes version your cluster runs, see
Versions.
Preinstalled tools
GKE on-prem's node OS has the following tools preinstalled: arpingcloud-utils, conntrack, logrotate, prips, systemd-container
GKE on-prem's node OS has the debug-toolbox container image
preinstalled. debug-toolbox includes several packages for debugging node
issues. You run an accompanying shell script, toolbox, to unpack and run the
debug-toolbox container.
Learn about the toolbox script.
Networking
As of GKE on-prem version 1.1.0-gke.6, the node OS' default
networking configuration is disabled to support static IP allocation.