RHEL8 control hosts not yet supported

Author: codyhoag

modules/rhel-preparing-playbook-machine.adoc

@@ -6,7 +6,7 @@
 [id="rhel-preparing-playbook-machine_{context}"]
 = Preparing the machine to run the playbook
 
-Before you can add compute machines that use Red Hat Enterprise Linux as the operating system to an {product-title} {product-version} cluster, you must prepare a machine to run the playbook from. This machine is not part of the cluster but must be able to access it.
+Before you can add compute machines that use {op-system-base-full} as the operating system to an {product-title} {product-version} cluster, you must prepare a {op-system-base} 7 machine to run the playbook from. This machine is not part of the cluster but must be able to access it.
 
 .Prerequisites
 
@@ -15,11 +15,11 @@ Before you can add compute machines that use Red Hat Enterprise Linux as the ope
 
 .Procedure
 
-. Ensure that the `kubeconfig` file for the cluster and the installation program that you used to install the cluster are on the machine. One way to accomplish this is to use the same machine that you used to install the cluster.
+. Ensure that the `kubeconfig` file for the cluster and the installation program that you used to install the cluster are on the {op-system-base} 7 machine. One way to accomplish this is to use the same machine that you used to install the cluster.
 
-. Configure the machine to access all of the RHEL hosts that you plan to use as compute machines. You can use any method that your company allows, including a bastion with an SSH proxy or a VPN.
+. Configure the machine to access all of the {op-system-base} hosts that you plan to use as compute machines. You can use any method that your company allows, including a bastion with an SSH proxy or a VPN.
 
-. Configure a user on the machine that you run the playbook on that has SSH access to all of the RHEL hosts.
+. Configure a user on the machine that you run the playbook on that has SSH access to all of the {op-system-base} hosts.
 +
 [IMPORTANT]
 ====
@@ -55,9 +55,7 @@ If you use SSH key-based authentication, you must manage the key with an SSH age
 # subscription-manager attach --pool=<pool_id>
 ----
 
-. Enable the repositories required by {product-title} {product-version}.
-
-.. For {op-system-base} 7 nodes, you must enable the following repositories:
+. Enable the repositories required by {product-title} {product-version}:
 +
 [source,terminal]
 ----
@@ -67,22 +65,6 @@ If you use SSH key-based authentication, you must manage the key with an SSH age
     --enable="rhel-7-server-ansible-2.9-rpms" \
     --enable="rhel-7-server-ose-4.9-rpms"
 ----
-+
-[NOTE]
-====
-Use of {op-system-base} 7 nodes is deprecated and planned for removal in a future release of {product-title} 4.
-====
-
-.. For {op-system-base} 8 nodes, you must enable the following repositories:
-+
-[source,terminal]
-----
-# subscription-manager repos \
-    --enable="rhel-8-for-x86_64-baseos-rpms" \
-    --enable="rhel-8-for-x86_64-appstream-rpms" \
-    --enable="ansible-2.9-for-rhel-8-x86_64-rpms" \
-    --enable="rhocp-4.9-for-rhel-8-x86_64-rpms"
-----
 
 . Install the required packages, including `openshift-ansible`:
 +
@@ -91,4 +73,4 @@ Use of {op-system-base} 7 nodes is deprecated and planned for removal in a futur
 # yum install openshift-ansible openshift-clients jq
 ----
 +
-The `openshift-ansible` package provides installation program utilities and pulls in other packages that you require to add a RHEL compute node to your cluster, such as Ansible, playbooks, and related configuration files. The `openshift-clients` provides the `oc` CLI, and the `jq` package improves the display of JSON output on your command line.
+The `openshift-ansible` package provides installation program utilities and pulls in other packages that you require to add a {op-system-base} compute node to your cluster, such as Ansible, playbooks, and related configuration files. The `openshift-clients` provides the `oc` CLI, and the `jq` package improves the display of JSON output on your command line.