OCPBUGS-37089:adding Important text

Author: brendan-daly-red-hat

installing/installing_aws/upi/installing-aws-user-infra.adoc

@@ -133,6 +133,8 @@ include::modules/installation-cloudformation-worker.adoc[leveloffset=+2]
 
 * You can view details about the CloudFormation stacks that you create by navigating to the link:https://console.aws.amazon.com/cloudformation/[AWS CloudFormation console].
 
+include::modules/installation-aws-creating-cloudformation-stack-compute.adoc[leveloffset=+2]
+
 include::modules/installation-aws-user-infra-bootstrap.adoc[leveloffset=+1]
 
 [role="_additional-resources"]

installing/installing_aws/upi/installing-restricted-networks-aws.adoc

@@ -110,7 +110,7 @@ include::modules/installation-cloudformation-bootstrap.adoc[leveloffset=+2]
 
 * See xref:../../../installing/installing_aws/upi/installing-aws-user-infra.adoc#installation-aws-user-infra-rhcos-ami_installing-aws-user-infra[{op-system} AMIs for the AWS infrastructure] for details about the {op-system-first} AMIs for the AWS zones.
 
-include::modules/installation-creating-aws-control-plane.adoc[leveloffset=+1]
+include::modules/installation-creating-aws-control-plane.adoc[leveloffset=+2]
 
 include::modules/installation-cloudformation-control-plane.adoc[leveloffset=+2]
 
@@ -125,6 +125,8 @@ You can either manually create worker nodes or use a MachineSet to create worker
 
 include::modules/installation-cloudformation-worker.adoc[leveloffset=+2]
 
+include::modules/installation-aws-creating-cloudformation-stack-compute.adoc[leveloffset=+2]
+
 include::modules/installation-aws-user-infra-bootstrap.adoc[leveloffset=+1]
 
 [role="_additional-resources"]

modules/installation-aws-creating-cloudformation-stack-compute.adoc

@@ -0,0 +1,34 @@
+// Module included in the following assemblies:
+//
+// * installing/installing_aws/installing-aws-user-infra.adoc
+// * installing/installing_aws/installing-restricted-networks-aws.adoc
+
+:_mod-docs-content-type: PROCEDURE
+[id="installation-aws-creating-cloudformation-stack_{context}"]
+= Creating the CloudFormation stack for compute machines
+
+You can create a stack of {aws-short} resources for the compute machines by using the CloudFormation template that was previously shared.
+
+[IMPORTANT]
+====
+When you use the CloudFormation template for the control plane machines, the template provisions all the three control plane machines with a single stack; however, when you use the CloudFormation template to deploy the compute machines, you must create the number of stacks based on the number that you defined in the `install-config.yaml` file. Each stack is provisioned once for each machine. To provision a new compute machine, you must change the stack name.
+====
+
+.Procedure
+* To create the CloudFormation stack for compute machines, run the following command:
++
+[source,terminal]
+----
+$ aws cloudformation create-stack --stack-name <name> \// <1>
+     --template-body file://<template>.yaml \// <2>
+     --parameters file://<parameters>.json <3>
+----
+<1> Specify the `<name>` with the name for the CloudFormation stack, such as `cluster-worker-1`. You need the name of this stack if you remove the cluster.
+<2> Specify the relative path and the name of the CloudFormation template YAML file that you saved.
+<3> Specify the relative path and the name of the JSON file for the CloudFormation parameters.
++
+.Example output
+[source,terminal]
+----
+arn:aws:cloudformation:us-east-1:269333783861:stack/cluster-worker-1/729ee301-1c2a-11eb-348f-sd9888c65b59
+----

modules/installation-cloudformation-worker.adoc

@@ -3,17 +3,17 @@
 // * installing/installing_aws/installing-aws-user-infra.adoc
 // * installing/installing_aws/installing-restricted-networks-aws.adoc
 
+:_mod-docs-content-type: REFERENCE
 [id="installation-cloudformation-worker_{context}"]
-= CloudFormation template for worker machines
+= CloudFormation template for compute machines
 
-You can use the following CloudFormation template to deploy the worker machines
-that you need for your {product-title} cluster.
+You can deploy the compute machines that you need for your {product-title} cluster by using the following CloudFormation template.
 
-.CloudFormation template for worker machines
+.CloudFormation template for compute machines
 [%collapsible]
 ====
 [source,yaml]
 ----
 include::https://raw.githubusercontent.com/openshift/installer/release-4.19/upi/aws/cloudformation/06_cluster_worker_node.yaml[]
 ----
-====
+====