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README.md
README.md
 
 
baremetal-prep.sh
baremetal-prep.sh
 
 
hosts.sample
hosts.sample
 
 
install-config.j2
install-config.j2
 
 
make-install-config.yaml
make-install-config.yaml
 
 

README.md

Baremetal-prep.sh Usage Documentation

Purpose:

Baremetal-prep.sh is a script designed to prepare a RHEL8 host for use as a bootstrap/provisioning node to deploy a IPI OpenShift cluster.

What it does:

Baremetal-prep.sh does the following to prepare a node:

  • Installs required dependencies
  • Enable firewalld and enables required ports
  • Enables libvirt and configures the default libvirt storage pool
  • Configures a provisioning bridge and baremetal bridge from the interfaces passed at runtime
  • Will generate a install-config.yaml if requested at runtime
  • Will generate a metal3-config.yaml if requested at runtime
  • Will configure a disconnected repository if requested at runtime and update install-config.yaml

Requirements for use:

To use baremetal-prep.sh the system needs the following:

  • RHEL8 entitled host
  • Two network interfaces: one for provisioning and one for baremetal
  • Should be run as a regular user that has sudo rights for everything
  • Needs a pull-secret{.json,.txt,} file in regular user's home directory
  • Needs a install-config.yaml file in regular users home directory if not generating install-config.yaml
  • Requires a Ansible host inventory file in regular users home directory of generating install-config.yaml

Usage:

To use baremetal-prep.sh one simply needs to clone the repo down to the provisioning host. Then set the execute bit on baremetal-prep.sh. Then copy the hosts.sample file to hosts and update the information in the file according to the deployment environment.

There are currently 7 options that can be passed:

  • -p <nic> (required) physical interface on host that will be used for provisioning bridge
  • -b <nic> (required) physical interface on the host that will be used for the baremetal bride
  • -c <cache url> (optional): default http://<deploy host ip>/images
  • -r <release> (optional) : default 4.3.0-0.nightly-2019-12-09-035405
  • -d (optional) will configure for a disconnected install
  • -g (optional) will generate a install-config.yaml
  • -m (optional) will generate a metal3-config.yaml

Example:

./baremetal-prep.sh 
Usage: 
         ./baremetal-prep.sh
           -p <provisioning interface>
           -b <baremetal interface>
           [-c <cache url>] : default http://10.19.140.64/images
           [-r <release>] : default 4.3.0-0.nightly-2019-12-09-035405
           [-d] (configure for disconnected)
           [-g] (generate install-config.yaml)
           [-m] (generate metal3-config.yaml)
Example: ./baremetal-prep.sh -p ens3 -b ens4 -d -g -m

To Dos: