Centos 7 ISO Builder

This repo allows one to create a custom CentOS 7 ISO with the necessary packages and tooling for deploying on SmartOS and the Joyent Public Cloud.

Requirements

In order to use this repo, you need to have the following:

• SmartOS
• A running CentOS instance (physical or virtual) with spare disk space
• sdc-vmtools

Setup

Included is a setup_env.sh script to be run inside the CentOS instance. This script will install the necessary packages required to create a custom ISO.

Using

The next script is build_centos_iso.sh which takes a series of commands:

• fetch
• layout
• finish

fetch

This command will fetch the DVD ISO from a given URL (default is Stanford) if no currently found.

layout

This command will extract the ISO and place it onto disk and copying any custom RPMS in ./RPMS onto the layout.

finish

This command will cleanup all prior ISO metadata, copy over the kickstart file in ./ks.cfg, modify the boot menu to add the kickstart file, and creates the ISO in ./iso.

You can run each command separately or all together.

./build_centos_iso.sh fetch
#create RPMs
./build_centos_iso.sh layout
./build_centos_iso.sh finish

Or ./build_centos_iso.sh fetch layout finish.

The resulting ISO will be ready to boot and install a clean image ready for SmartOS and the Joyent Public Cloud.

Default Settings For Image

• Stock Kernel

• US Keyboard and Language

• Firewall enabled with SSH allowed

• Passwords are using SHA512

• Firstboot disabled

• SELinux is set to permissive

• Timezone is set to UTC

• Disk is 10GB in size (8GB for / and the rest for swap)

• Default packages installed (me-centos is from https://github.com/joyent/me-centos)

  • @core
  • acpid
  • iputils
  • man
  • me-centos
  • ntp
  • ntpdate
  • parted
  • vim-common
  • vim-enhanced
  • vim-minimal
  • wget