upi: update upi/vsphere/README.md

Clarify that a DHCP server is still required at the beginning of the installation to download the ignition files. In response to openshift#2552
clnperez · Jan 10, 2020 · 02e050f · 02e050f
1 parent b7825c5
commit 02e050f
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/upi/vsphere/README.md b/upi/vsphere/README.md
@@ -35,12 +35,15 @@ There is an example terraform.tfvars file in this directory named terraform.tfva
 * cluster_domain
 * vsphere_user
 * vsphere_password
-* ipam_token
+* ipam_token OR bootstrap_ip, control_plane_ips, and compute_ips
 * bootstrap_ignition_url
 * control_plane_ignition
 * compute_ignition
+
 The bootstrap ignition config must be placed in a location that will be accessible by the bootstrap machine. For example, you could store the bootstrap ignition config in a gist.
 
+Even if declaring static IPs a DHCP server is still required early in the boot process to download the ignition files. 
+
 4. Run `terraform init`.
 
 5. Ensure that you have you AWS profile set and a region specified. The installation will use create AWS route53 resources for routing to the OpenShift cluster.