anchor.diff:  ----
   ====
   
  -Modify the file to match your environment and specifications, and save it as
  -*_/etc/ansible/hosts_*.
  +To use this example, modify the file to match your environment and
  +specifications, and save it as *_/etc/ansible/hosts_*.
   
   [[single-master-multi-etcd-multi-node]]
   
  
positive.code: node1.example.com openshift_node_labels="{'region': 'primary', 'zone': 'east'}"
  ----
  ====
  
  *Configuring Host Variables*
  
  To assign environment variables to hosts during the Ansible install, indicate the desired variables in the *_/etc/ansible/hosts_* file:
  
  ====
  ----
  [masters]
  ec2-52-6-179-239.compute-1.amazonaws.com openshift_public_hostname=ose3-master.public.example.com
  ----
  ====
  
  The following table describes example variables for use with the Ansible
  installer to replace in the above example configuration:
  
  [options="header"]
  |===
  
  |Variable |Purpose
  
  |`*openshift_hostname*`
  |This variable overrides the internal cluster host name for the system.
  Use this when the system's default IP address does not resolve to the system
  hostname.
  
  |`*openshift_public_hostname*`
  |This variable overrides the system's public host name. Use this for cloud
  installations, or for hosts on networks using a network address translation
  (NAT).
  
  |`*openshift_ip*`
  |This variable overrides the cluster internal IP address for the system. Use this when using an interface that is not configured with the default route.
  
  |`*openshift_public_ip*`
  |This variable overrides the system's public IP address. Use this for cloud
  installations, or for hosts on networks using a network address translation
  (NAT).
  |===
  
  [[single-master-multi-node]]
  
  
negative.code: 
  == Configuring Ansible
  
  The *_/etc/ansible/hosts_* file is Ansible's inventory file for the playbook to
  use during the installation. The inventory file describes the configuration for
  your OpenShift cluster. You must replace the default contents of the file with
  your desired configuration.
  
  The following sections describe commonly-used variables to set in your inventory
  file during an advanced installation, followed by example inventory files you
  can use as a starting point for your installation. The examples describe various
  environment topographies, including
  link:../../architecture/infrastructure_components/kubernetes_infrastructure.html#high-availability-masters[using
  multiple masters for high availability]. You can choose an example that matches
  your requirements, modify it to match your own environment, and use it as your
  inventory file when link:#running-the-ansible-installer[running the Ansible
  installer].
  
  [NOTE]
  ====
  