Merge pull request #85695 from lahinson/osdocs-10714-compact-hcp

[OSDOCS-10714]: HCP deployment on OCP compact

Author: lahinson

_topic_maps/_topic_map.yml

@@ -2462,7 +2462,7 @@ Topics:
   Topics:
   - Name: Requirements for hosted control planes
     File: hcp-requirements
-  - Name: Hosted control planes sizing guidance
+  - Name: Sizing guidance for hosted control planes
     File: hcp-sizing-guidance
   - Name: Overriding resouce utilization measurements
     File: hcp-override-resource-util

hosted_control_planes/hcp-prepare/hcp-sizing-guidance.adoc

@@ -20,16 +20,22 @@ See the following highly available {hcp} requirements, which were tested with {p
 [role="_additional-resources"]
 .Additional resources
 
-* For more information about disabling the metric service monitoring, see xref:../../hosted_control_planes/hcp-prepare/hcp-override-resource-util.adoc#hcp-override-resource-util[Overriding resource utilization measurements].
-* For more information about highly available {hcp} topology, see xref:../../hosted_control_planes/hcp-prepare/hcp-distribute-workloads.adoc#hcp-distribute-workloads[Distributing hosted cluster workloads].
+* xref:../../hosted_control_planes/hcp-prepare/hcp-override-resource-util.adoc#hcp-override-resource-util[Overriding resource utilization measurements]
+* xref:../../hosted_control_planes/hcp-prepare/hcp-distribute-workloads.adoc#hcp-distribute-workloads[Distributing hosted cluster workloads]
 
 include::modules/hcp-pod-limits.adoc[leveloffset=+1]
 
 [role="_additional-resources"]
 .Additional resources
 
-* For more information about supported identity providers, see xref:../../nodes/nodes/nodes-nodes-managing-max-pods.adoc#nodes-nodes-managing-max-pods-proc_nodes-nodes-managing-max-pods[Configuring the maximum number of pods per node] in _Managing the maximum number of pods per node_.
+* xref:../../nodes/nodes/nodes-nodes-managing-max-pods.adoc#nodes-nodes-managing-max-pods-proc_nodes-nodes-managing-max-pods[Configuring the maximum number of pods per node]
 
 include::modules/hcp-resource-limit.adoc[leveloffset=+1]
 include::modules/hcp-load-based-limit.adoc[leveloffset=+1]
-include::modules/hcp-sizing-calculation.adoc[leveloffset=+1]
+include::modules/hcp-sizing-calculation.adoc[leveloffset=+1]
+include::modules/hcp-shared-infra.adoc[leveloffset=+1]
+
+[role="_additional-resources"]
+.Additional resources
+
+* xref:../../hosted_control_planes/hcp-prepare/hcp-sizing-guidance.adoc[Sizing guidance for {hcp}]

modules/hcp-shared-infra.adoc

@@ -0,0 +1,14 @@
+// Module included in the following assemblies:
+// * hosted-control-planes/hcp-prepare/hcp-sizing-guidance.adoc
+
+:_mod-docs-content-type: CONCEPT
+[id="hcp-shared-infra_{context}"]
+= Shared infrastructure between hosted and standalone control planes
+
+As a service provider, you can more effectively use your resources by sharing infrastructure between a standalone {product-title} control plane and {hcp}. A 3-node {product-title} cluster can be a management cluster for a hosted cluster. 
+
+Sharing infrastructure can be beneficial in constrained environments, such as in small-scale deployments where you need resource efficiency.
+
+Before you share infrastructure, ensure that your infrastructure has enough resources to support {hcp}. On the {product-title} management cluster, nothing else can be deployed except {hcp}. Ensure that the management cluster has enough CPU, memory, storage, and network resources to handle the combined load of the hosted clusters. For more information, see "Sizing guidance for {hcp}".
+
+Workload must not be demanding, and it must fall within a low queries-per-second (QPS) profile. To maintain a reasonable risk profile, you can share up to 3 hosted clusters.