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|
#!/bin/bash
#
# proof of concept script to pull a kickstart template and adapt it to
# a config for a specific host
Self=$(basename $0)
function print_usage {
echo "usage: $Self <options>"
}
function print_help {
cat <<EOF
$Self <options>
This script pulls a kickstart template from somewhere and creates a
specific kickstart config for a specific host based on the options
passed to it.
The kickstart config will then be placed somewhere, where it can be pulled
by the installer, which is probably the floppy image borne ipxe booted
CentOS7 install system.
Options:
-D, --domain domain, to complete FQDN
-G, --gateway Gateway of target system
-H, --host hostname of the target system
-I, --ip IP address of target system
-M, --netmask Netmask of target system
-N, --nameserver Nameserver of target system
-P, --publish-path Path where results will be stored
--sec-ip IP of secondary interface
--sec-nm Netmask of secondary interface
-h, --help this
EOF
}
# Needed 'macro/substitutions:
# INSTALLSERVER
# PRIGATEWAY
# PRIIP
# PRINETMASK
# PRINAMESERVERS
# SECIP
# SECNETMASK
# HOSTNAME
# DOMAIN
function parse_commadline {
while [ "$#" -gt 0 ] ; do
case "$1" in
-h|--help)
print_help
exit 0
;;
-H|--host)
Host="$2"
shift
;;
-D|--domain)
Domain="$2"
shift
;;
-I|--ip)
IP="$2"
shift
;;
-M|--netmask)
NM="$2"
shift
;;
-G|--gateway)
GW="$2"
shift
;;
-N|--nameserver)
NS="$2"
shift
;;
-P|--publish-path)
PublishPath="$2"
shift
;;
-K|--kserver)
Kserver="$2"
shift
;;
--sec-ip)
SecIP="${2}"
shift
;;
--sec-nm)
SecNM="${2}"
shift
;;
-T|--tmp-dir)
TmpDir="${2}"
shift
;;
*)
echo "what do you mean \"$1\"?"
exit 1
;;
esac
shift
done
if [ "x${Host}" = "x" ]
then
echo "${Self}: --host is mandatory"
print_usage
exit 1
elif [ "x${Domain}" = "x" ]
then
echo "${Self}: --domain is mandatory"
print_usage
exit 1
elif [ "x${IP}" = "x" ]
then
echo "${Self}: --ip is mandatory"
print_usage
exit 1
elif [ "x${NM}" = "x" ]
then
echo "${Self}: --netmask is mandatory"
print_usage
exit 1
elif [ "x${GW}" = "x" ]
then
echo "${Self}: --gateway is mandatory"
print_usage
exit 1
elif [ "x${SecIP}" = "x" ]
then
echo "${Self}: --sec-ip is mandatory"
print_usage
exit 1
elif [ "x${SecNM}" = "x" ]
then
echo "${Self}: --sec-nm is mandatory"
print_usage
exit 1
elif [ "x${Kserver}" = "x" ]
then
echo "setting Kserver"
Kserver="109.105.122.84"
elif [ "x${NS}" = "x" ]
then
NS="109.106.96.141"
fi
}
parse_commadline ${@}
# for some bizarre reason, whichever is the last 'elif' in parse_commandline()
# isn't evaluated. So this is needed to make sure $NS is set to something:
if [ "x${NS}" = "x" ]
then
NS="109.105.96.141"
fi
if [ "x${TmpDir}" = "x" ]
then
TmpDir=$(mktemp -d)
else
mkdir -p "${TmpDir}"
fi
curl -o "${TmpDir}/ks-template" "https://git.nordu.net/?p=ndn-boot-img-stuffs.git;a=blob_plain;f=ks-template/hw/supermicro/SYS-5018D-FN8T/dtn-10g.ks"
# substitutions:
sed -ie "s/HOSTNAME/${Host}/g" "${TmpDir}/ks-template"
sed -ie "s/INSTALLSERVER/${Kserver}/g" "${TmpDir}/ks-template"
sed -ie "s/PRIIP/${IP}/g" "${TmpDir}/ks-template"
sed -ie "s/PRINETMASK/${NM}/g" "${TmpDir}/ks-template"
sed -ie "s/PRIGATEWAY/${GW}/g" "${TmpDir}/ks-template"
sed -ie "s/PRINAMESERVERS/${NS}/g" "${TmpDir}/ks-template"
sed -ie "s/SECIP/${SecIP}/g" "${TmpDir}/ks-template"
sed -ie "s/SECNETMASK/${SecNM}/g" "${TmpDir}/ks-template"
if [ "x${PublishPath}" = "x" ]
then
echo "PublishPath no set, leaving everything in ${TmpDir}"
else
mkdir -p "${PublishPath}/ks"
mv "${TmpDir}/ks-template" "${PublishPath}/ks/${Host}.ks"
rm -rf "${TmpDir}/*"
fi
|
