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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)
Template="supermicro/SYS-5018D-FN8T/dtn-10g.ks"
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
--cosmos-tag Tag in ndn-sysconf to reference
--template Template to use. This is a relative path, plus the
name of the template file. Default:
${Template}
-h, --help this
--krnl-cmdline add stuff to destination system kernel cmdline
--sec-ip IP of secondary interface
--sec-nm Netmask of secondary interface
To avoid shell interpretation of whitespace in --krnl-cmdline use escaped
semicolon:
To achieve this:
console=tty1 console=ttyS0,115200n8
write this:
console=tty1\;console=ttyS0,115200n8
EOF
}
# Needed 'macro/substitutions:
# INSTALLSERVER
# PRIGATEWAY
# PRIIP
# PRINETMASK
# PRINAMESERVERS
# SECIP
# SECNETMASK
# HOSTNAME
# DOMAIN
function parse_commadline {
while [ "$#" -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="$2"
shift
;;
--cosmos-tag)
CosmosTag="${2}"
shift
;;
--template)
Template="${2}"
shift
;;
--sec-ip)
SecIP="${2}"
shift
;;
--sec-nm)
SecNM="${2}"
shift
;;
-T|--tmp-dir)
TmpDir="${2}"
shift
;;
--krnl-cmdline)
KrnlCmdLineOpt="$(echo ${2} | sed -e 's/;/ /g')"
shift
;;
--gen-cmd)
GeneratorCommand="$(echo ${2} | sed -e 's/;:;/ /g')"
shift
;;
*)
echo "what do you mean \"$1\"?"
exit 1
;;
esac
shift
done
}
function check_options {
if [ "x${Host}" = "x" ]
then
echo "${Self}: --host is mandatory"
print_usage
exit 1
fi
if [ "x${Domain}" = "x" ]
then
echo "${Self}: --domain is mandatory"
print_usage
exit 1
fi
if [ "x${IP}" = "x" ]
then
echo "${Self}: --ip is mandatory"
print_usage
exit 1
fi
if [ "x${NM}" = "x" ]
then
echo "${Self}: --netmask is mandatory"
print_usage
exit 1
fi
if [ "x${GW}" = "x" ]
then
echo "${Self}: --gateway is mandatory"
print_usage
exit 1
fi
if [ "x${SecIP}" = "x" ]
then
echo "${Self}: --sec-ip is mandatory"
print_usage
exit 1
fi
if [ "x${SecNM}" = "x" ]
then
echo "${Self}: --sec-nm is mandatory"
print_usage
exit 1
fi
if [ "x${Kserver}" = "x" ]
then
Kserver="109.105.122.84"
fi
if [ "x${NS}" = "x" ]
then
NS="109.105.96.141"
fi
}
parse_commadline ${@}
check_options
if [ "x${TmpDir}" = "x" ]
then
TmpDir=$(mktemp -d)
else
mkdir -p "${TmpDir}"
fi
curl -o "${TmpDir}/ks-template" "https://git.nordu.net/?p=ndn-boot-img-stuffs.git;a=blob_plain;f=ks-template/hw/${Template}"
if [ $? -ne 0 ]
then
echo "failed to download template. This is bad."
exit 1
fi
if $(file "${TmpDir}/ks-template" | grep -q XML)
then
echo "downloaded file (${TmpDir}/ks-template) looks wrong"
exit 1
fi
# boilerplate:
sed -ie '1 a #' "${TmpDir}/ks-template"
sed -ie '2 a # This file generated with this command:' "${TmpDir}/ks-template"
sed -ie "3 a # ${GeneratorCommand}" "${TmpDir}/ks-template"
sed -ie '4 a #' "${TmpDir}/ks-template"
# substitutions:
sed -ie "s/HOSTNAME/${Host}/g" "${TmpDir}/ks-template"
sed -ie "s/DOMAIN/${Domain}/g" "${TmpDir}/ks-template"
sed -ie "s/COSMOSTAG/${CosmosTag}/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" "${TmpDir}/ks-template"
sed -ie "s/KRNLCMDLINE/${KrnlCmdLineOpt}/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
|
