Merge pull request #97004 from kdrake20/HCIDOCS-644-4.15

[enterprise-4.15] HCIDOCS-644: Create diagram for OCI integration section

Author: lahinson

images/569_OpenShift_ai_install_oci_0725.png

@@ -31,7 +31,54 @@ To ensure the best performance conditions for your cluster workloads that operat
 * Basic environment: 500 GB, and 60 VPUs.
 * Heavy production environment: More than 500 GB, and 100 or more VPUs.
 
-Consider reserving additional VPUs to provide sufficient capacity for updates and scaling activities. For more information about VPUs, see Volume Performance Units (Oracle documentation).
+Consider reserving additional VPUs to provide sufficient capacity for updates and scaling activities. For more information about VPUs, see link:https://docs.oracle.com/en-us/iaas/Content/Block/Concepts/blockvolumeperformance.htm#vpus[Volume Performance Units (Oracle documentation)].
 ====
 
-If you are unfamiliar with the {product-title} {ai-full}, see "Assisted Installer for {product-title}".
+.Instance sizing recommendations
+
+Find recommended values for compute instance CPU, memory, VPU, and volume size for {product-title} nodes. For details, see link:https://docs.oracle.com/en-us/iaas/Content/openshift-on-oci/installing-agent-about-instance-configurations.htm[Instance Sizing Recommendations for {product-title} on {oci} Nodes (Oracle documentation)].
+
+[id="installing-oci-workflow_{context}"]
+== Workflow
+
+.High-level workflow for using the Assisted Installer in a connected environment to install a cluster on {oci}
+image::569_OpenShift_ai_install_oci_0725.png[High-level workflow for using the Assisted Installer in a connected environment to install a cluster on {oci}]
+
+The procedure for using the {ai-full} in a connected environment to install a cluster on {oci} is outlined below:
+
+. In the {oci} console, configure an {oci} account to host the cluster:
+
+.. Create a new child compartment under an existing compartment.
+
+.. Create a new object storage bucket or use one provided by {oci}.
+
+.. Download the stack file template stored locally.
+
+. In the {ai-full} console, set up a cluster:
+
+.. Enter the cluster configurations.
+
+.. Generate and download the discovery ISO image.
+
+. In the {oci} console, create the infrastructure:
+
+.. Upload the discovery ISO image to the {oci} bucket.
+
+.. Create a Pre-Authenticated Request (PAR) for the ISO image.
+
+.. Upload the stack file template, and use it to create and apply the stack.
+
+.. Copy the custom manifest YAML file from the stack.
+
+. In the {ai-full} console, complete the cluster installation:
+
+.. Set roles for the cluster nodes.
+
+.. Upload the manifests provided by Oracle.
+
+.. Install the cluster.
+
+[IMPORTANT]
+====
+The steps for provisioning {oci} resources are provided as an example only. You can also choose to create the required resources through other methods; the scripts are just an example. Installing a cluster with infrastructure that you provide requires knowledge of the cloud provider and the installation process on {product-title}. You can access {oci} configurations to complete these steps, or use the configurations to model your own custom script. 
+====