para93 / ocp4

Deployment code for Openshift 4.

ironicbadger/ocp4

This repo contains code to deploy Openshift 4 for my homelab. It focuses on UPI with vSphere 6.7u3, a full write up is available on openshift.com.

May 2021 - The code here is working against 4.7.

Pre-reqs

On a Mac you will need to install a few packages via brew.

brew install jq watch gsed

Usage

Code for each OCP release lives on a numbered branch. The master branch represents the latest stable iteration and will likely be behind branches. In otherwords, check the number branches first before looking at master.

• This repo requires Terraform 0.13 or newer
• Install oc tools with ./install-oc-tools.sh --latest 4.6
• This code use yamldecode - details here

0. Create ~/.config/ocp/vsphere.yaml for yamldecode use, sample content:

alex@mooncake ~ % cat .config/ocp/vsphere.yaml
vsphere-user: [email protected]
vsphere-password: "123!"
vsphere-server: 192.168.1.240
vsphere-dc: ktzdc
vsphere-cluster: ktzcluster

1. Configure DNS - https://blog.ktz.me/configure-unbound-dns-for-openshift-4/ - if using CoreDNS this is optional.
2. Create install-config.yaml and ensure cluster_slug matches metadata: name: below.

apiVersion: v1
baseDomain: openshift.lab.int
compute:
- hyperthreading: Enabled
  name: worker
  replicas: 0
controlPlane:
  hyperthreading: Enabled
  name: master
  replicas: 3
metadata:
  name: ocp4
platform:
  vsphere:
    vcenter: 192.168.1.240
    username: [email protected]
    password: supersecretpassword
    datacenter: ktzdc
    defaultDatastore: nvme
fips: false 
pullSecret: 'YOUR_PULL_SECRET'
sshKey: 'YOUR_SSH_PUBKEY'

3. Customize clusters/lab/terraform.tfvars with any relevant configuration.

4. Run make tfinit to initialise Terraform modules

5. Run make create to create the VMs and generate/install ignition configs

6. Monitor install progress with make wait-for-bootstrap

7. Check and approve pending CSRs with make get-csr and make approve-csr

8. Run make bootstrap-complete to destroy the bootstrap VM

9. Run make wait-for-install and wait for the cluster install to complete

10. Enjoy!