Single node cluster (snc) scripts for openshift-4

How to use?

Make sure the one time setup is satisfied. (https://github.com/openshift/installer/blob/master/docs/dev/libvirt/README.md#one-time-setup)
Build the installer using the libvirt tag. ( https://github.com/openshift/installer/blob/master/docs/dev/libvirt/README.md#build-and-run-the-installer )
Clone this repo git clone https://github.com/praveenkumar/snc.git
cp <built_installer_binary> <directory_to_cloned_repo>
cd <directory_to_cloned_repo>
./openshift-install create install-config
Set compute/replicas to 0 in install-config.yaml file.
./snc.sh

Once your snc.sh script run successfully.
You need to wait for around 24 hours for initial cert rotation for kubelet server/client.
- https://bugzilla.redhat.com/show_bug.cgi?id=1693951
./createdisk.sh test