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Chapter 1. Introduction
This document provides a workflow to help upgrade your Red Hat OpenStack Platform environment to the latest major version and keep it updated with minor releases of that version.
1.1. Upgrade Goals
Red Hat OpenStack Platform provides a method to upgrade your current environment to the next major version. This guide aims to upgrade and update your environment to the latest Red Hat OpenStack Platform 12 (Pike) release.
The upgrade also upgrades to the following:
- Operating System: Red Hat Enterprise Linux 7.4
- Networking: Open vSwitch 2.6
-
Ceph Storage: The process upgrades to the latest version of Red Hat Ceph Storage 2 and switches to a
ceph-ansibledeployment.
Red Hat does not support upgrading any Beta release of Red Hat OpenStack Platform to any supported release.
1.2. Upgrade Path
The following represents the upgrade path of a Red Hat OpenStack Platform environment:
| Task | Version | When | |
|---|---|---|---|
| 1 | Backup your current undercloud and overcloud. | Red Hat OpenStack Platform 11 | Once |
| 2 | Update your current undercloud and overcloud to the latest minor release. | Red Hat OpenStack Platform 11 | Once |
| 3 | Upgrade your current undercloud to the latest major release. | Red Hat OpenStack Platform 11 to 12 | Once |
| 4 | Prepare your overcloud, including updating any relevant custom configuration. | Red Hat OpenStack Platform 11 to 12 | Once |
| 5 | Upgrade your current overcloud to the latest major release. | Red Hat OpenStack Platform 11 to 12 | Once |
| 6 | Update your undercloud and overcloud to the latest minor release on a regular basis. | Red Hat OpenStack Platform 12 | Ongoing |
1.3. Repositories
Both the undercloud and overcloud require access to Red Hat repositories either through the Red Hat Content Delivery Network, or through Red Hat Satellite 5 or 6. If using a Red Hat Satellite Server, synchronize the required repositories to your OpenStack Platform environment. Use the following list of CDN channel names as a guide:
| Name | Repository | Description of Requirement |
|---|---|---|
| Red Hat Enterprise Linux 7 Server (RPMs) |
| Base operating system repository for x86_64 systems. |
| Red Hat Enterprise Linux 7 Server - Extras (RPMs) |
| Contains Red Hat OpenStack Platform dependencies. |
| Red Hat Enterprise Linux 7 Server - RH Common (RPMs) |
| Contains tools for deploying and configuring Red Hat OpenStack Platform. |
| Red Hat Satellite Tools for RHEL 7 Server RPMs x86_64 |
| Tools for managing hosts with Red Hat Satellite 6. |
| Red Hat Enterprise Linux High Availability (for RHEL 7 Server) (RPMs) |
| High availability tools for Red Hat Enterprise Linux. Used for Controller node high availability. |
| Red Hat Enterprise Linux OpenStack Platform 12 for RHEL 7 (RPMs) |
| Core Red Hat OpenStack Platform repository. Also contains packages for Red Hat OpenStack Platform director. |
| Red Hat Ceph Storage OSD 2 for Red Hat Enterprise Linux 7 Server (RPMs) |
| (For Ceph Storage Nodes) Repository for Ceph Storage Object Storage daemon. Installed on Ceph Storage nodes. |
| Red Hat Ceph Storage MON 2 for Red Hat Enterprise Linux 7 Server (RPMs) |
| (For Ceph Storage Nodes) Repository for Ceph Storage Monitor daemon. Installed on Controller nodes in OpenStack environments using Ceph Storage nodes. |
| Red Hat Ceph Storage Tools 2 for Red Hat Enterprise Linux 7 Server (RPMs) |
| Provides tools for nodes to communicate with the Ceph Storage cluster. This repository should be enabled for all nodes when deploying an overcloud with a Ceph Storage cluster. |
To configure repositories for your Red Hat OpenStack Platform environment in an offline network, see "Configuring Red Hat OpenStack Platform Director in an Offline Environment" on the Red Hat Customer Portal.
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