New Google Distributed Cloud 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
Google Distributed Cloud's node OS has the following tools preinstalled: arpingcloud-utils, conntrack, logrotate, prips, systemd-container
Google Distributed Cloud'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 Google Distributed Cloud version 1.1.0-gke.6, the node OS' default
networking configuration is disabled to support static IP allocation.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-29 UTC."],[[["\u003cp\u003eGoogle Distributed Cloud cluster nodes utilize an Ubuntu 18.04 (bionic) node operating system (OS) image, similar to Google Kubernetes Engine's Ubuntu node image.\u003c/p\u003e\n"],["\u003cp\u003eNew Google Distributed Cloud versions may introduce updated Kubernetes versions, which are detailed in the release notes.\u003c/p\u003e\n"],["\u003cp\u003eThe node OS comes preinstalled with several tools, including \u003ccode\u003earping\u003c/code\u003e, \u003ccode\u003ecloud-utils\u003c/code\u003e, \u003ccode\u003econntrack\u003c/code\u003e, \u003ccode\u003elogrotate\u003c/code\u003e, \u003ccode\u003eprips\u003c/code\u003e, \u003ccode\u003esystemd-container\u003c/code\u003e, and the \u003ccode\u003edebug-toolbox\u003c/code\u003e container image for debugging node issues.\u003c/p\u003e\n"],["\u003cp\u003eStarting with Google Distributed Cloud version 1.1.0-gke.6, the default networking configuration on the node OS is disabled to facilitate static IP allocation.\u003c/p\u003e\n"],["\u003cp\u003eSpecific details regarding the security of the node can be found under the node security section.\u003c/p\u003e\n"]]],[],null,["# Node image\n\nThis page describes the node operating system (node OS) image that runs on\nGoogle Distributed Cloud cluster nodes.\n\nGoogle Distributed Cloud cluster nodes run Ubuntu version 18.04 (bionic). The\nimage is very similar to\n[Google Kubernetes Engine's Ubuntu node image](/kubernetes-engine/docs/concepts/node-images).\n\nKubernetes version\n------------------\n\nNew Google Distributed Cloud versions sometimes introduce a new Kubernetes version\nfor clusters. Version changes are announced in\n[Release notes](/anthos/clusters/docs/on-prem/1.6/release-notes). To learn which\nKubernetes version your cluster runs, see\n[Versions](/anthos/clusters/docs/on-prem/1.6/version-history#kubernetes_and_node_kernel_versions).\n\nPreinstalled tools\n------------------\n\n- Google Distributed Cloud's node OS has the following tools preinstalled: `arping` `cloud-utils`, `conntrack`, `logrotate`, `prips`, `systemd-container`\n- Google Distributed Cloud'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](/anthos/clusters/docs/on-prem/1.6/toolbox).\n\nNetworking\n----------\n\nAs of Google Distributed Cloud version 1.1.0-gke.6, the node OS' default\nnetworking configuration is disabled to support static IP allocation.\n\nSecurity\n--------\n\nSee [node security](/anthos/clusters/docs/on-prem/1.6/concepts/security#node_security)."]]