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
Your hosts must contain the latest versions of base installation packages available for your distribution before proceeding further.
Note
Disable or remove any automatic update services because they can impact your OpenStack environment.
Warning
We recommend disabling EPEL when using RDO packages due to updates in EPEL breaking backwards compatibility. Or, preferably pin package versions using the yum-versionlock plugin.
Note
CentOS does not require the following steps.
On RHEL, register your system with Red Hat Subscription Management, using your Customer Portal user name and password:
# subscription-manager register --username="USERNAME" --password="PASSWORD"
Find entitlement pools containing the channels for your RHEL system:
# subscription-manager list --available
Use the pool identifiers found in the previous step to attach your RHEL entitlements:
# subscription-manager attach --pool="POOLID"
Enable required repositories:
# subscription-manager repos --enable=rhel-7-server-optional-rpms \
--enable=rhel-7-server-extras-rpms --enable=rhel-7-server-rh-common-rpms
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 repository.
# yum install centos-release-openstack-mitaka
On RHEL, download and install the RDO repository RPM to enable the OpenStack repository.
# yum install https://repos.fedorapeople.org/repos/openstack/openstack-mitaka/rdo-release-mitaka-6.noarch.rpm
Upgrade the packages on your host:
# yum upgrade
Note
If the upgrade process includes a new kernel, reboot your host to activate it.
Install the OpenStack client:
# yum install python-openstackclient
RHEL and CentOS enable SELinux by default. Install the openstack-selinux package to automatically manage security policies for OpenStack services:
# yum install openstack-selinux
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