Chapter 1. Introduction 1.1. About this release This release of Red Hat OpenStack Platform (RHOSP) is based on the OpenStack "Wallaby" release. It includes additional features, known issues, and resolved issues specific to RHOSP. Only changes specific to RHOSP are included in this document. The release notes for the OpenStack "Wallaby" release itself are available at the following location: https://releases.openstack.org/wallaby/index.html . RHOSP uses components from other Red Hat products. For specific information pertaining to the support of these components, see https://access.redhat.com/site/support/policy/updates/openstack/platform/ . To evaluate RHOSP, sign up at http://www.redhat.com/openstack/ . Note The Red Hat Enterprise Linux High Availability Add-On is available for RHOSP use cases. For more details about the add-on, see http://www.redhat.com/products/enterprise-linux-add-ons/high-availability/ . For details about the package versions to use in combination with RHOSP, see https://access.redhat.com/site/solutions/509783 . 1.2. Requirements This version of Red Hat OpenStack Platform (RHOSP) runs on the most recent fully supported release of Red Hat Enterprise Linux 9.2 Extended Update Support (EUS). The dashboard for this release supports the latest stable versions of the following web browsers: Mozilla Firefox Mozilla Firefox ESR Google Chrome Note Before you deploy RHOSP, familiarize yourself with the recommended deployment methods. See Installing and Managing Red Hat OpenStack Platform . 1.3. Deployment limits For a list of deployment limits for Red Hat OpenStack Platform (RHOSP), see Deployment Limits for Red Hat OpenStack Platform . 1.4. Database size management For recommended practices on maintaining the size of the MariaDB databases in your Red Hat OpenStack Platform (RHOSP) environment, see Database Size Management for Red Hat Enterprise Linux OpenStack Platform . 1.5. Certified guest operating systems For a list of the certified guest operating systems in Red Hat OpenStack Platform (RHOSP), see Certified Guest Operating Systems in Red Hat OpenStack Platform and Red Hat Enterprise Virtualization . 1.6. Product certification catalog For a list of the Red Hat Official Product Certification Catalog, see Product Certification Catalog . 1.7. Compute drivers This release of Red Hat OpenStack Platform (RHOSP) is supported only with the libvirt driver (using KVM as the hypervisor on Compute nodes). This release of RHOSP runs with Bare Metal Provisioning. Bare Metal Provisioning has been fully supported since the release of RHOSP 7 (Kilo). You can use Bare Metal Provisioning to provision bare-metal machines by using common technologies such as PXE and IPMI, to cover a wide range of hardware while supporting pluggable drivers to allow the addition of vendor-specific functionality. Red Hat does not provide support for other Compute virtualization drivers such as the deprecated VMware "direct-to-ESX" hypervisor or non-KVM libvirt hypervisors. 1.8. Content Delivery Network (CDN) repositories This section describes the repositories required to deploy Red Hat OpenStack Platform (RHOSP) 17.1. You can install RHOSP 17.1 through the Content Delivery Network (CDN) by using subscription-manager . For more information, see Planning your undercloud . Warning Some packages in the RHOSP software repositories conflict with packages provided by the Extra Packages for Enterprise Linux (EPEL) software repositories. The use of RHOSP on systems with the EPEL software repositories enabled is unsupported. 1.8.1. Undercloud repositories You run Red Hat OpenStack Platform (RHOSP) 17.1 on Red Hat Enterprise Linux (RHEL) 9.2. Note If you synchronize repositories with Red Hat Satellite, you can enable specific versions of the Red Hat Enterprise Linux repositories. However, the repository remains the same despite the version you choose. For example, you can enable the 9.2 version of the BaseOS repository, but the repository name is still rhel-9-for-x86_64-baseos-eus-rpms despite the specific version you choose. Warning Any repositories except the ones specified here are not supported. Unless recommended, do not enable any other products or repositories except the ones listed in the following tables or else you might encounter package dependency issues. Do not enable Extra Packages for Enterprise Linux (EPEL). Core repositories The following table lists core repositories for installing the undercloud. Name Repository Description of requirement Red Hat Enterprise Linux 9 for x86_64 - BaseOS (RPMs) Extended Update Support (EUS) rhel-9-for-x86_64-baseos-eus-rpms Base operating system repository for x86_64 systems. Red Hat Enterprise Linux 9 for x86_64 - AppStream (RPMs) rhel-9-for-x86_64-appstream-eus-rpms Contains Red Hat OpenStack Platform dependencies. Red Hat Enterprise Linux 9 for x86_64 - High Availability (RPMs) Extended Update Support (EUS) rhel-9-for-x86_64-highavailability-eus-rpms High availability tools for Red Hat Enterprise Linux. Used for Controller node high availability. Red Hat OpenStack Platform for RHEL 9 (RPMs) openstack-17.1-for-rhel-9-x86_64-rpms Core Red Hat OpenStack Platform repository, which contains packages for Red Hat OpenStack Platform director. Red Hat Fast Datapath for RHEL 9 (RPMS) fast-datapath-for-rhel-9-x86_64-rpms Provides Open vSwitch (OVS) packages for OpenStack Platform. 1.8.2. Overcloud repositories You run Red Hat OpenStack Platform (RHOSP) 17.1 on Red Hat Enterprise Linux (RHEL) 9.2. Note If you synchronize repositories with Red Hat Satellite, you can enable specific versions of the Red Hat Enterprise Linux repositories. However, the repository remains the same despite the version you choose. For example, you can enable the 9.2 version of the BaseOS repository, but the repository name is still rhel-9-for-x86_64-baseos-eus-rpms despite the specific version you choose. Warning Any repositories except the ones specified here are not supported. Unless recommended, do not enable any other products or repositories except the ones listed in the following tables or else you might encounter package dependency issues. Do not enable Extra Packages for Enterprise Linux (EPEL). Controller node repositories The following table lists core repositories for Controller nodes in the overcloud. Name Repository Description of requirement Red Hat Enterprise Linux 9 for x86_64 - BaseOS (RPMs) Extended Update Support (EUS) rhel-9-for-x86_64-baseos-eus-rpms Base operating system repository for x86_64 systems. Red Hat Enterprise Linux 9 for x86_64 - AppStream (RPMs) rhel-9-for-x86_64-appstream-eus-rpms Contains Red Hat OpenStack Platform dependencies. Red Hat Enterprise Linux 9 for x86_64 - High Availability (RPMs) Extended Update Support (EUS) rhel-9-for-x86_64-highavailability-eus-rpms High availability tools for Red Hat Enterprise Linux. Red Hat OpenStack Platform for RHEL 9 x86_64 (RPMs) openstack-17.1-for-rhel-9-x86_64-rpms Core Red Hat OpenStack Platform repository. Red Hat Fast Datapath for RHEL 9 (RPMS) fast-datapath-for-rhel-9-x86_64-rpms Provides Open vSwitch (OVS) packages for OpenStack Platform. Red Hat Ceph Storage Tools 6 for RHEL 9 x86_64 (RPMs) rhceph-6-tools-for-rhel-9-x86_64-rpms Tools for Red Hat Ceph Storage 6 for Red Hat Enterprise Linux 9. Compute and ComputeHCI node repositories The following table lists core repositories for Compute and ComputeHCI nodes in the overcloud. Name Repository Description of requirement Red Hat Enterprise Linux 9 for x86_64 - BaseOS (RPMs) Extended Update Support (EUS) rhel-9-for-x86_64-baseos-eus-rpms Base operating system repository for x86_64 systems. Red Hat Enterprise Linux 9 for x86_64 - AppStream (RPMs) rhel-9-for-x86_64-appstream-eus-rpms Contains Red Hat OpenStack Platform dependencies. Red Hat Enterprise Linux 9 for x86_64 - High Availability (RPMs) Extended Update Support (EUS) rhel-9-for-x86_64-highavailability-eus-rpms High availability tools for Red Hat Enterprise Linux. Red Hat OpenStack Platform for RHEL 9 x86_64 (RPMs) openstack-17.1-for-rhel-9-x86_64-rpms Core Red Hat OpenStack Platform repository. Red Hat Fast Datapath for RHEL 9 (RPMS) fast-datapath-for-rhel-9-x86_64-rpms Provides Open vSwitch (OVS) packages for OpenStack Platform. Red Hat Ceph Storage Tools 6 for RHEL 9 x86_64 (RPMs) rhceph-6-tools-for-rhel-9-x86_64-rpms Tools for Red Hat Ceph Storage 6 for Red Hat Enterprise Linux 9. Ceph Storage node repositories The following table lists Ceph Storage related repositories for the overcloud. Name Repository Description of requirement Red Hat Enterprise Linux 9 for x86_64 - BaseOS (RPMs) rhel-9-for-x86_64-baseos-rpms Base operating system repository for x86_64 systems. Red Hat Enterprise Linux 9 for x86_64 - AppStream (RPMs) rhel-9-for-x86_64-appstream-rpms Contains Red Hat OpenStack Platform dependencies. Red Hat OpenStack Platform Deployment Tools for RHEL 9 x86_64 (RPMs) openstack-17.1-deployment-tools-for-rhel-9-x86_64-rpms Packages to help director configure Ceph Storage nodes. This repository is included with standalone Ceph Storage subscriptions. If you use a combined OpenStack Platform and Ceph Storage subscription, use the openstack-17.1-for-rhel-9-x86_64-rpms repository. Red Hat OpenStack Platform for RHEL 9 x86_64 (RPMs) openstack-17.1-for-rhel-9-x86_64-rpms Packages to help director configure Ceph Storage nodes. This repository is included with combined Red Hat OpenStack Platform and Red Hat Ceph Storage subscriptions. If you use a standalone Red Hat Ceph Storage subscription, use the openstack-17.1-deployment-tools-for-rhel-9-x86_64-rpms repository. Red Hat Ceph Storage Tools 6 for RHEL 9 x86_64 (RPMs) rhceph-6-tools-for-rhel-9-x86_64-rpms Provides tools for nodes to communicate with the Ceph Storage cluster. Red Hat Fast Datapath for RHEL 9 (RPMS) fast-datapath-for-rhel-9-x86_64-rpms Provides Open vSwitch (OVS) packages for OpenStack Platform. If you are using OVS on Ceph Storage nodes, add this repository to the network interface configuration (NIC) templates. 1.9. Product support The resources available for product support include the following: Customer Portal The Red Hat Customer Portal offers a wide range of resources to help guide you through planning, deploying, and maintaining your Red Hat OpenStack Platform (RHOSP) deployment. You can access the following facilities through the Customer Portal: Product documentation Knowledge base articles and solutions Technical briefs Support case management Access the Customer Portal at https://access.redhat.com/ . Mailing Lists You can join the rhsa-announce public mailing list to receive notification of security fixes for RHOSP and other Red Hat products. Subscribe at https://www.redhat.com/mailman/listinfo/rhsa-announce . 1.10. Unsupported features The following features are not supported in Red Hat OpenStack Platform (RHOSP): Custom policies, which includes modification of policy.json or policy.yaml files either manually or through any Policies heat parameters. Do not modify the default policies unless the documentation contains explicit instructions to do so. Containers are not available for the following packages, therefore they are not supported in RHOSP: nova-serialproxy nova-spicehtml5proxy File injection of personality files to inject user data into virtual machine instances. Instead, cloud users can pass data to their instances by using the --user-data option to run a script during instance boot, or set instance metadata by using the --property option when launching an instance. For more information, see Creating a customized instance . Persistent memory for instances (vPMEM). You can create persistent memory namespaces only on Compute nodes that have NVDIMM hardware. Red Hat has removed support for persistent memory from RHOSP 17+ in response to the announcement by the Intel Corporation on July 28, 2022 that they are discontinuing investment in their Intel(R) OptaneTM business: Intel(R) OptaneTM Business Update: What Does This Mean for Warranty and Support Virtualized control planes. If you require support for any of these features, contact the Red Hat Customer Experience and Engagement team to discuss a support exception, if applicable, or other options.

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