This page describes the node operating system (node OS) image that runs on Anthos clusters on VMware (GKE on-prem) cluster nodes.
Anthos clusters on VMware cluster nodes run Ubuntu version 18.04 (bionic) by default. The image is similar to Google Kubernetes Engine's Ubuntu node image. Container-Optimized OS is also supported in Anthos clusters on VMware node pools as a preview feature.
Anthos clusters on VMware offers the following node image options per OS for your cluster:
Supported and Unsupported Features with Container-Optimized OS
Container-Optimized OS does not support the following feature.
- dataplane v2
New Anthos clusters on VMware 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.
- Anthos clusters on VMware's node OS has the following tools preinstalled:
- Anthos clusters on VMware's node OS has the
debug-toolboxcontainer image preinstalled.
debug-toolboxincludes several packages for debugging node issues. You run an accompanying shell script,
toolbox, to unpack and run the
debug-toolboxcontainer. Learn about the
As of Anthos clusters on VMware version 1.1.0-gke.6, the node OS' default networking configuration is disabled to support static IP allocation.
See node security.