Review CentOS/RHEL packages instructions

Edit "OpenStack packages for RHEL and CentOS" considering which
releases are now supported:
	- Add table for OS compatibility info
	- Moved instructions relative to EOL OS or OS which only
	feat unmaintained OpenStack releases
	- Add TOC limited to depth 3 because Contributor Guide/RST
  	conventions/Titles limits heading levels

Change-Id: Ib3093ba9ebd2ff74db530b24c1b84a49a26bcaf8
This commit is contained in:
Francesco Di Nucci 2024-03-15 10:28:29 +01:00
parent 492a219e86
commit 520f1a65b6
2 changed files with 184 additions and 93 deletions

2
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@ -26,5 +26,5 @@ boxes/*
.*.swo
.bak
/.project
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======================================
OpenStack packages for RHEL and CentOS
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
======================================
.. contents:: :depth: 3
Distributions release OpenStack packages as part of the distribution or
using other methods because of differing release schedules. Perform
these procedures on all nodes.
.. warning::
Starting with the Ussuri release, you will need to use either CentOS8
or RHEL 8. Previous OpenStack releases will need to use either CentOS7
or RHEL 7. Instructions are included for both distributions and
versions where different.
.. note::
The set up of OpenStack packages described here needs to be done on
all nodes: controller, compute, and Block Storage nodes.
using other methods because of differing release schedules. **Perform
these procedures on all nodes (controller, compute, network, dashboard,
storage etc. nodes).**
.. warning::
Your hosts must contain the latest versions of base installation
packages available for your distribution before proceeding further.
.. warning::
The following instructions refer to RDO: a free, community supported
distribution of OpenStack for RHEL and CentOS. For the Red Hat-supported
*Red Hat OpenStack Platform*, `see here
<https://www.redhat.com/en/technologies/linux-platforms/openstack-platform>`_.
According to RDO Packstack documentation, RDO should work on RHEL but is
currently only tested on CentOS Stream.
.. note::
Disable or remove any automatic update services because they can
impact your OpenStack environment.
Operating System
----------------
.. list-table:: **Operating System**
:header-rows: 1
* - OS
- Compatible Releases
- Maintained Releases
* - CentOS 7 / RHEL 7
- ? to Train
- *None*
* - CentOS Stream 8 / RHEL 8
- Ussuri to Yoga
- *None*
* - CentOS Stream 9 / RHEL 9
- Xena and following releases
- Zed, 2023.1 Antelope (SLURP), 2023.2 Bobcat, 2024.1 Caracal (SLURP)
Prerequisites
-------------
@ -36,46 +57,161 @@ Prerequisites
in EPEL breaking backwards compatibility. Or, preferably pin package
versions using the ``yum-versionlock`` plugin.
.. note::
If EPEL is needed, also consider `lowering its priority in DNF
<https://dnf.readthedocs.io/en/latest/conf_ref.html#repo-options>`_.
The following steps apply to RHEL only. CentOS does not require these
steps.
CentOS Stream
~~~~~~~~~~~~~
#. When using RHEL, it is assumed that you have registered your system using
Red Hat Subscription Management and that you have the
``rhel-7-server-rpms`` or ``rhel-8-for-x86_64-baseos-rpms`` repository
enabled by default depending on your version.
For more information on registering a RHEL 7 system, see the
`Red Hat Enterprise Linux 7 System Administrator's Guide
<https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/System_Administrators_Guide/part-Subscription_and_Support.html>`_.
#. In addition to ``rhel-7-server-rpms`` on a RHEL 7 system, you also need to
have the ``rhel-7-server-optional-rpms``, ``rhel-7-server-extras-rpms``,
and ``rhel-7-server-rh-common-rpms`` repositories enabled:
Enable PowerTools/CRB repository:
.. code-block:: console
# subscription-manager repos --enable=rhel-7-server-optional-rpms \
--enable=rhel-7-server-extras-rpms --enable=rhel-7-server-rh-common-rpms
# ### CentOS Stream 9
# dnf install dnf-plugins-core
# dnf config-manager --set-enabled crb
For more information on registering a RHEL 8 system, see the
`Red Hat Enterprise Linux 8 Installation Guide
<https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/performing_a_standard_rhel_installation/post-installation-tasks_installing-rhel>`_.
RHEL
~~~~
In addition to ``rhel-8-for-x86_64-baseos-rpms`` on a RHEL 8 system, you
also need to have the ``rhel-8-for-x86_64-appstream-rpms``,
``rhel-8-for-x86_64-supplementary-rpms``, and ``codeready-builder-for-rhel-8-x86_64-rpms``
repositories enabled:
* When using RHEL, it is assumed that you have registered your system using
Red Hat Subscription Management. For more information on registering a RHEL
9 system, see the `Red Hat Enterprise Linux 9 Installation Guide
<https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/performing_a_standard_rhel_9_installation/assembly_installing-on-amd64-intel-64-and-64-bit-arm_installing-rhel#post-installation-tasks_assembly_installing-on-amd64-intel-64-and-64-bit-arm>`_.
* Enable the required repositories:
.. code-block:: console
# subscription-manager repos --enable=rhel-8-for-x86_64-appstream-rpms \
--enable=rhel-8-for-x86_64-supplementary-rpms --enable=codeready-builder-for-rhel-8-x86_64-rpms
# ### RHEL 9
# subscription-manager repos --enable=rhel-9-for-x86_64-baseos-rpms \
--enable=rhel-9-for-x86_64-appstream-rpms \
--enable=rhel-9-for-x86_64-supplementary-rpms
* Enable CodeReady Linux Builder (CRB) repository:
.. code-block:: console
# ### RHEL 9
# subscription-manager repos --enable=codeready-builder-for-rhel-9-x86_64-rpms
Enable the OpenStack repository
-------------------------------
To choose which OpenStack release to install, `check the release page
<https://releases.openstack.org/>`_.
CentOS Stream
~~~~~~~~~~~~~
* On CentOS Stream, the ``extras`` repository provides the RPM that enables the
OpenStack repository. CentOS includes the ``extras`` repository by
default, so you can simply install the package to enable the OpenStack
repository:
.. code-block:: console
# ### CentOS Stream 9
# dnf install centos-release-openstack-<release>
# ### So for example
# ### Zed
# dnf install centos-release-openstack-zed
# ### 2023.1 Antelope
# dnf install centos-release-openstack-antelope
# ### 2023.2 Bobcat
# dnf install centos-release-openstack-bobcat
RHEL
~~~~
* On RHEL, download and install the RDO repository RPM to enable the
OpenStack repository.
.. code-block:: console
# ### RHEL 9
# dnf install https://www.rdoproject.org/repos/rdo-release.el9.rpm
**The RDO repository RPM installs the latest available OpenStack release.**
Finalize the installation
-------------------------
1. Upgrade the packages on all nodes:
.. code-block:: console
# dnf upgrade
.. note::
If the upgrade process includes a new kernel, reboot your host
to activate it.
2. Install the appropriate OpenStack client for your version.
.. code-block:: console
# ### EL9
# dnf install python3-openstackclient
3. RHEL and CentOS enable :term:`SELinux` by default. Install the
``openstack-selinux`` package to automatically manage security
policies for OpenStack services:
.. code-block:: console
# ### EL9
# dnf install openstack-selinux
Older versions
--------------
.. warning::
Information here is kept for historical/archival purposes. Includes
unmaintained/end of life operating systems and OpenStack releases.
**Do not follow these instructions**.
Prerequisites
~~~~~~~~~~~~~
**RHEL**
* When using RHEL, it is assumed that you have registered your system using
Red Hat Subscription Management. For more information on registering a RHEL 7
system, see the `Red Hat Enterprise Linux 7 System Administrator's Guide
<https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/System_Administrators_Guide/part-Subscription_and_Support.html>`_
For more information on registering a RHEL 8 system, see the `Red Hat Enterprise Linux 8 Installation Guide
<https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/performing_a_standard_rhel_installation/post-installation-tasks_installing-rhel>`_.
* Enable the required repositories:
.. code-block:: console
# ### RHEL 7
# subscription-manager repos --enable=rhel-7-server-rpms \
--enable=rhel-7-server-optional-rpms \
--enable=rhel-7-server-extras-rpms \
--enable=rhel-7-server-rh-common-rpms
# ### RHEL 8
# subscription-manager repos --enable=rhel-8-for-x86_64-baseos-rpms \
--enable=rhel-8-for-x86_64-appstream-rpms \
--enable=rhel-8-for-x86_64-supplementary-rpms
* Enable Powertools CodeReady Linux Builder (CRB) repository:
.. code-block:: console
# ### RHEL 8
# subscription-manager repos --enable=codeready-builder-for-rhel-8-x86_64-rpms
Enable the OpenStack repository
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* On CentOS, the ``extras`` repository provides the RPM that enables the
OpenStack repository. CentOS includes the ``extras`` repository by
default, so you can simply install the package to enable the OpenStack
@ -126,55 +262,10 @@ Enable the OpenStack repository
# yum install centos-release-openstack-pike
* On RHEL, download and install the RDO repository RPM to enable the
OpenStack repository.
Further references
------------------
**On RHEL 7:**
.. code-block:: console
# yum install https://rdoproject.org/repos/rdo-release.rpm
**On RHEL 8:**
.. code-block:: console
# dnf install https://www.rdoproject.org/repos/rdo-release.el8.rpm
The RDO repository RPM installs the latest available OpenStack release.
Finalize the installation
-------------------------
1. Upgrade the packages on all nodes:
.. code-block:: console
# yum upgrade
.. note::
If the upgrade process includes a new kernel, reboot your host
to activate it.
2. Install the appropriate OpenStack client for your version.
**For CentOS 7 and RHEL 7**
.. code-block:: console
# yum install python-openstackclient
**For CentOS 8 and RHEL 8**
.. code-block:: console
# yum install python3-openstackclient
3. RHEL and CentOS enable :term:`SELinux` by default. Install the
``openstack-selinux`` package to automatically manage security
policies for OpenStack services:
.. code-block:: console
# yum install openstack-selinux
* `Red Hat - Introduction to Red Hat OpenStack Platform / Understanding Red Hat OpenStack Platform
<https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/17.1/html/introduction_to_red_hat_openstack_platform/assembly_understanding-red-hat-openstack-platform>`_
* `RDO - Overview of available RDO repos <https://www.rdoproject.org/what/repos/>`_
* `RDO - Packstack <https://www.rdoproject.org/install/packstack/>`_