Environment preparation

For the RPM installation method, certain configurations need to be made before the installation begins. All commands in the following subsections are to be performed as the root.

First, start the vagrant VM and login as root:

$ vagrant up
Bringing machine 'default' up with 'virtualbox' provider...
...
<output omitted>
...
$ vagrant ssh
$ sudo -i
#

Before you do anything else, make sure that all hosts are up-to-date so that all features required by OpenShift are supported by the kernel and user-space libraries:

# yum -y update
…
<output omitted>
…
Complete!
# reboot

You will also need the following packages:

# yum -y install git docker epel-release
…
<output omitted>
…
Complete!
# yum -y install ansible
…
<output omitted>
…
Complete!

Note

We also installed the epel-release package that enables the EPEL repository needed for installing the latest version of Ansible, required by OpenShift 3.9. Generally speaking, you can install Ansible on any system...