Foreman hooks after build script to extract and setup an ESXi ISO for installation

01_prep_esxi_for_deployment_hook_script.sh

#!/bin/bash

# Location for ESXi ISOs
ESXI_BUILDS_LOCAL_PATH=/home/esxi_builds

# FTP root dir
FTP_ROOT=/var/ftp

# Functions to parse hook_data
. $(dirname $0)/hook_functions.sh
# event name (create, before_destroy etc.)
event=${HOOK_EVENT}
# to_s representation of the object, e.g. host's fqdn
object=${HOOK_OBJECT}

exec >> /tmp/${event}.log
exec 2>&1

# Entities captured from hook_data
system_name=$(hook_data host.name)
system_operatingsystem_name=$(hook_data host.operatingsystem_name)

echo "$(date): received ${event} on ${object}"
echo "Hostname: ${system_name} OS: ${system_operatingsystem_name}"

# Where should we extract the ISO?
iso_mountpoint=${FTP_ROOT}/${system_operatingsystem_name}

if [ ! -d ${iso_mountpoint} ]; then
    # Search for the ISO using ${system_operatingsystem_name}. 
    # ESXi-6.7.0-8169922 = VMware-VMvisor-Installer-6.7.0-8169922.x86_64.iso
    iso_path_in_builds="$(find ${ESXI_BUILDS_LOCAL_PATH} -xdev -type f \( -name "*$(echo ${system_operatingsystem_name} | cut -d '-' -f2,3)*" -and -name "*$(echo ${system_operatingsystem_name} | cut -d '-' -f4).iso" \) -print -quit)"
    echo ${iso_path_in_builds}
    if [ -z ${iso_path_in_builds} ]; then
        echo "ISO image not found. Exiting."
        exit 1
    fi
    # ISO located. Let's extract it
    mkdir -p ${iso_mountpoint}
    7z x ${iso_path_in_builds} -o${iso_mountpoint}
    cd ${iso_mountpoint}
    # Convert all files, dirs to lowercase
    for SRC in `find . -depth`
    do
        DST=`dirname "${SRC}"`/`basename "${SRC}" | tr '[A-Z]' '[a-z]'`
        if [ "${SRC}" != "${DST}" ]
        then
            [ ! -e "${DST}" ] && mv -T "${SRC}" "${DST}" || echo "${SRC} was not renamed"
        fi
    done
    # Change permissions of directories to 755
    find . -type d -exec chmod 755 {} \;
    # Add prefix to boot.cfg. Change to your FOREMAN FQDN/IP
    sed -i -e "s#/##g" -e "3s#^#prefix=ftp://foreman.local/${system_operatingsystem_name}\n#" boot.cfg
fi