installer

This directory contains tools to create custom Ubuntu installers for boot servers.

Prerequisites

The Makefile assumes to be run on a recent Ubuntu or Debian OS. To test built images, QEMU/KVM is used.

Build

1. Prepare cluster.json file in this directory.

   The contents should be a JSON array of objects with these fields:

   Name	Type	Description
   name	string	Cluster name
   bastion_network	string	IPv4 address of the bastion network
   bmc_network	CIDR	IPv4 network address in CIDR for the BMC
   ntp_servers	array	List of NTP server addresses

   cluster.json.example is an example of this file.

2. Run make to see available build options.

3. Run make setup. This is a one-time procedure.

4. Run make all to build everything.

• build/cybozu-ubuntu-22.04-live-server-amd64.iso is the custom ISO installer.
• build/cybozu-ubuntu-22.04-server-cloudimg-amd64.img is the custom cloud image.

Test

Built images can be tested with make preview-iso and make preview-cloud.

They require a Linux host that can run QEMU/KVM. If your host itself is a virtual machine, you need to enable nested virtualization. For Hyper-V, run the following command in administrator's PowerShell console after shutting down the virtual machine.

$ Set-VMProcessor -VMName <VMName> -ExposeVirtualizationExtensions $true

To run QEMU/KVM w/o root privileges, add kvm group to your account. You need to logout and login to gain the group privilege.

$ sudo adduser $USER kvm
$ exit

They also require X Window System. MobaXterm is quite handy to run X on Windows.