OpenShift Vagrant

This repository contains a Vagrantfile and Ansible inventory for creating an OpenShift Container Platform (OCP) 3 or OpenShift Origin 3 cluster with Vagrant for development and testing purposes.

Requirements

• Vagrant
• vagrant-libvirt provider
• RHEL Vagrant Box (OpenShift Container Platform only), see https://github.com/appuio/el-vagrant#rhel-box
• OpenShift Container Platform subscription (OpenShift Container Platform only), see https://github.com/appuio/el-vagrant#subscription-manager-configuration-rhel-only

Tested with Vagrant 2.0.0 and vagrant-libvirt 0.0.40.

Usage

The Vagrantfile and Ansible inventory in this repository are preconfigured with 4 machines:

• control: An optional Ansible control machine to run playbooks outside of the OpenShift cluster
• ose3-master: An OpenShift master
• ose3-node1 and ose3-node2: OpenShift nodes

Add or remove machines as needed. Then start Vagrant machines and install OpenShift with:

1. Checkout this repository and el-vagrant into the same directory.

2. Adjust memory and cpus values in the Vagrantfile as needed

3. Start the Vagrant machines:

   vagrant up
   

4. Install OpenShift prerequisites:

   vagrant ssh control
   sudo -i
   yum install ansible
   cp /vagrant/hosts.example /etc/ansible/hosts
   ansible-playbook /vagrant/pre-install.yml
   

5. OCP only: Change openshift_deployment_type in /etc/ansible/hosts to openshift-enterprise

6. Install OpenShift:

   ansible-playbook /usr/share/ansible/openshift-ansible/playbooks/byo/config.yml
   

The control machine is optional as Ansible can also be installed and run on an OpenShift master. However it's good practice that playbooks also run on outside of OpenShift clusters and are therefore tested on a separate control machine.

Implementation

The pre-install playbook takes care of:

• Configures SSH known host keys so Ansible can run non-interactively
• Configures Ansible SSH pipelining in order to improve Ansible performance
• Enables yum repositories required for OpenShift installation
• Installs prerequisites for OpenShift installation