anchor.diff:  network blocks in your infrastructure to which pods, nodes, or the master may
   require access. Defaults to *172.30.0.0/16* and *cannot* be re-configured after
   deployment.
  -
  -|`*openshift_node_kubelet_args*`
  -|This variable is used to configure `kubeletArguments` on nodes such as arguments used in
  -link:../../admin_guide/garbage_collection.html[container and image garbage collection].
  -`kubeletArguments` are key value pairs that will be passed directly to the Kubelet that
  -match the link:http://kubernetes.io/v1.1/docs/admin/kubelet.html[Kubelet's command line
  -arguments]. `kubeletArguments` are not migrated or validated and may become invalid if
  -used. These values override other settings in node configuration which may cause invalid
  -configurations. Example usage: *{'image-gc-high-threshold': ['90'],'image-gc-low-threshold': ['80']}*.
   
   |`*osm_default_subdomain*`
   |This variable overrides the default subdomain to use for exposed
  
positive.code: Docker Container Logs] for available options.
  
  |`*openshift_node_kubelet_args*`
  |This variable allows you to specify resources per node using kubelet arguments.
  See link:../admin_guide/manage_nodes.html#configuring-node-resources[Configuring
  Node Resources] for more information.
  |===
  
  [[configuring-cluster-variables]]
  
negative.code: - Deploy an link:docker_registry.html[integrated Docker registry].
  - Deploy a link:deploy_router.html[router].
  ifdef::openshift-origin[]
  - link:../../install_config/imagestreams_templates.html[Populate your OpenShift installation]
  with a useful set of Red Hat-provided image streams and templates.
  endif::[]
  