kreate4

This tool want's to help you create an environment for OCP4 without the assle of staticizing IPs and using dhcp and dns.

You need to create 2 files

• The first is pull.json which contains the pull information for openshift (one line)
• The second is the file configuration.yaml, which contains all the needed configuration to deliver the entire openshift 4 lab. (You have to review it but is pretty straightforward and commented)

Requirements:

• python3
• docker
• terraform
• You need a bastion (infrastructure) host where you'll run this script and that will be the dhcp and dns server for the network
• You need to run the script as root or as sudo (NO_PASSWD) user.
• You need 2 IP for the haproxy (one is your bastion ip the second is any in the same network).
• You need to forward the zone ${your_cluster_name}.fqdn to the basstion machine as it will operate as authoritative dns.

Execution:

Install docker (this is for centos 8 or fedora)

dnf config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo
dnf install -y docker-ce --nobest
systemctl enable --now docker

Disable the firewall (it's a lab)

systemctl disable --now firewalld

Install terraform

wget https://releases.hashicorp.com/terraform/0.12.17/terraform_0.12.17_linux_amd64.zip
unzip ./terraform_0.12.17_linux_amd64.zip –d /usr/local/bin
chmod +x /usr/local/bin/terraform

Install the required libraries

python3 -m venv .myenv
source .myenv/bin/activate
pip install -r requirements.txt

Copy your pull.json from try.openshift.com

vi pull.json

Edit configuration.yaml

cp configuration.yaml.dist configuration.yaml
vi configuration.yaml

Run the script

./kreate4.py

It's a prototype. Be kind.