Merge pull request #91390 from openshift/revert-90976-HCIDOCS-689

Revert "HCIDOCS-689: Fix OCP landing page for AI"

Author: stevsmit

_topic_maps/_topic_map.yml

@@ -399,7 +399,7 @@ Topics:
     File: uninstalling-cluster-nutanix
   - Name: Installation configuration parameters for Nutanix
     File: installation-config-parameters-nutanix
-- Name: Installing on-premise with the Assisted Installer
+- Name: Installing on-premise with Assisted Installer
   Dir: installing_on_prem_assisted
   Distros: openshift-enterprise
   Topics:

installing/installing_on_prem_assisted/installing-on-prem-assisted.adoc

@@ -6,6 +6,11 @@ include::_attributes/common-attributes.adoc[]
 
 toc::[]
 
-The {ai-full} for {product-title} is a user-friendly installation solution offered on the link:https://console.redhat.com/[{hybrid-console}].
+You can install {product-title} on on-premise hardware or on-premise VMs by using the {ai-full}. Installing {product-title} by using the {ai-full} supports `x86_64`, `AArch64`, `ppc64le`, and `s390x` CPU architectures.
 
-include::modules/assisted-installer-using-the-assisted-installer.adoc[leveloffset=+1]
+include::modules/assisted-installer-using-the-assisted-installer.adoc[leveloffset=+1]
+
+[id="assisted-installer-api-support-policy"]
+== API support for the {ai-full}
+
+Supported APIs for the {ai-full} are stable for a minimum of three months from the announcement of deprecation.

modules/assisted-installer-using-the-assisted-installer.adoc

@@ -6,4 +6,45 @@
 [id="using-the-assisted-installer_{context}"]
 = Using the Assisted Installer
 
-See the link:https://access.redhat.com/documentation/en-us/assisted_installer_for_openshift_container_platform[Installing {product-title} with the {ai-full}] documentation for details.
+The link:https://access.redhat.com/documentation/en-us/assisted_installer_for_openshift_container_platform[{ai-full}] is a user-friendly installation solution offered on the link:https://console.redhat.com/openshift/assisted-installer/clusters/~new[Red Hat Hybrid Cloud Console]. The {ai-full} supports the various deployment platforms with a focus on bare metal, Nutanix, and vSphere infrastructures.
+
+The {ai-full} provides installation functionality as a service. This software-as-a-service (SaaS) approach has the following advantages:
+
+* *Web user interface:* The web user interface performs cluster installation without the user having to create the installation configuration files manually.
+* *No bootstrap node:* A bootstrap node is not required when installing with the {ai-full}. The bootstrapping process executes on a node within the cluster.
+* *Hosting:* The {ai-full} hosts:
+** Ignition files
+** The installation configuration
+** A discovery ISO
+** The installer
+* *Streamlined installation workflow:* Deployment does not require in-depth knowledge of {product-title}. The {ai-full} provides reasonable defaults and provides the installer as a service, which:
+** Eliminates the need to install and run the {product-title} installer locally.
+** Ensures the latest version of the installer up to the latest tested z-stream releases. Older versions remain available, if needed.
+** Enables building automation by using the API without the need to run the {product-title} installer locally.
+* *Advanced networking:* The {ai-full} supports IPv4 and IPv6 networking, as well as dual-stack networking with the OVN-Kubernetes network plugin, NMState-based static IP addressing, and an HTTP/S proxy. OVN-Kubernetes is the default Container Network Interface (CNI) for {product-title} 4.12 and later releases. OpenShift SDN is supported up to {product-title} 4.14, but is not supported for {product-title} 4.15 and later releases.
+
+* *Preinstallation validation:* The {ai-full} validates the configuration before installation to ensure a high probability of success. The validation process includes the following checks:
+** Ensuring network connectivity
+** Ensuring sufficient network bandwidth
+** Ensuring connectivity to the registry
+** Ensuring time synchronization between cluster nodes
+** Verifying that the cluster nodes meet the minimum hardware requirements
+** Validating the installation configuration parameters
+* *REST API:* The {ai-full} has a REST API, enabling automation.
+
+The {ai-full} supports installing {product-title} on premises in a connected environment, including with an optional HTTP/S proxy. It can install the following:
+
+* Highly available {product-title} or {sno} (SNO)
+
+* {product-title} on bare metal, Nutanix, or vSphere with full platform integration, or other virtualization platforms without integration
+
+* Optional: {VirtProductName}, multicluster engine, {lvms-first}, and {rh-storage}
++
+[NOTE]
+====
+Currently, {VirtProductName} and {lvms} are not supported on {ibm-z-name} (`s390x`) architecture.
+====
+
+The user interface provides an intuitive interactive workflow where automation does not exist or is not required. Users may also automate installations using the REST API.
+
+See the link:https://access.redhat.com/documentation/en-us/assisted_installer_for_openshift_container_platform[Assisted Installer for OpenShift Container Platform] documentation for details.