afeiszli/installcentos

Note: Update: November 2019 - I no longer work at Red Hat on the OpenShift team. Given that, I will not be updating this repo to work with OpenShift 4.x on baremetal. My future work will be centered on a more pure upstream kubernetes experience. If a community member wants to add support for 4.x, I will gladly accept a PR.

Install RedHat OKD 3.11 on your own server. For a local only install, it is suggested that you use CDK or MiniShift instead of this repo. This install method is targeted for a single node cluster that has a long life.

This repository is a set of scripts that will allow you easily install the latest version (3.11) of OKD in a single node fashion. What that means is that all of the services required for OKD to function (master, node, etcd, etc.) will all be installed on a single host. The script supports a custom hostname which you can provide using the interactive mode.

If you are wanting to install OCP on RDO (OpenStack)

Michel Peterson has created a wrapper script in his repo that will do all the heavy lifting for you. Check it out!

https://github.com/mpeterson/rdo-openshift-tools

Please do use a clean CentOS system, the script installs all necesary tools and packages including Ansible, container runtime, etc.

Warning about Let's Encrypt setup available on this project: Let's Encrypt only works if the IP is using publicly accessible IP and custom certificates." This feature doesn't work with OpenShift CLI for now.

Installation

1. Create a VM as explained in https://www.youtube.com/watch?v=ZkFIozGY0IA (this video) by Grant Shipley

2. Clone this repo

git clone https://github.com/okd-community-install/installcentos.git

3. Execute the installation script

cd installcentos
./install-openshift.sh

Automation

1. Define mandatory variables for the installation process

# Domain name to access the cluster
$ export DOMAIN=<public ip address>.nip.io

# User created after installation
$ export USERNAME=<current user name>

# Password for the user
$ export PASSWORD=password

2. Define optional variables for the installation process

# Instead of using loopback, setup DeviceMapper on this disk.
# !! All data on the disk will be wiped out !!
$ export DISK="/dev/sda"

3. Run the automagic installation script as root with the environment variable in place:

curl https://raw.githubusercontent.com/okd-community-install/installcentos/master/install-openshift.sh | INTERACTIVE=false /bin/bash

Development

For development it's possible to switch the script repo

# Change location of source repository
$ export SCRIPT_REPO="https://raw.githubusercontent.com/okd-community-install/installcentos/master"
$ curl $SCRIPT_REPO/install-openshift.sh | /bin/bash

Testing

The script is tested using the tooling in the validate directory.

To use the tooling, it's required to create file validate/env.sh with the DigitalOcean API key

export DIGITALOCEAN_TOKEN=""

and then run start.sh to start the provisioning. Once the ssh is connected to the server, the script will atatch to the tmux session running Ansible installer.

To destroy the infrastructure, run the stop.sh script.