133 lines
2.6 KiB
Bash
Executable File
133 lines
2.6 KiB
Bash
Executable File
#!/bin/sh
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#
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# This script places the new systems hostname into a couple of files within
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# the new image.
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#
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# Steve
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# --
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# https://steve.fi/
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prefix=$1
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#
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# Source our common functions
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#
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if [ -e /usr/share/xen-tools/common.sh ]; then
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. /usr/share/xen-tools/common.sh
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else
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. ./hooks/common.sh
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fi
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#
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# Log our start
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#
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logMessage Script $0 starting
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#
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# We need to split up the hostname into name + domain
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# do this by looking for a dot.
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name=$(echo "$hostname" | sed -e 's/\..*$//')
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domain=$(echo "$hostname" | sed -e 's/^[^.]*\.//')
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#
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# Make sure the umask is correct
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#
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umask 022
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#
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# Setup the hostname + domain names.
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#
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echo HOSTNAME=\"${name}\" >> ${prefix}/etc/conf.d/hostname
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echo DNSDOMAIN=\"${domain}\" >> ${prefix}/etc/conf.d/domainname
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#
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# Fixup the /etc/hosts file upon the new image for
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# machines with static IPs
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#
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if [ -z "${dhcp}" ]; then
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# Non-IPv6 stuff.
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grep -v '\(::\|IPv6\)' /etc/hosts > ${prefix}/etc/hosts
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# New entry.
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echo "${ip1} ${hostname}" >> ${prefix}/etc/hosts
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echo " " >> ${prefix}/etc/hosts
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# IPv6 stuff.
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grep '\(::\|IPv6\)' /etc/hosts >> ${prefix}/etc/hosts
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else
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#
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# Stub /etc/hosts for DHCP clients.
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#
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cat >> ${prefix}/etc/hosts <<EOF
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127.0.0.1 localhost
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# The following lines are desirable for IPv6 capable hosts
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::1 ip6-localhost ip6-loopback
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fe00::0 ip6-localnet
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ff00::0 ip6-mcastprefix
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ff02::1 ip6-allnodes
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ff02::2 ip6-allrouters
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ff02::3 ip6-allhosts
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EOF
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fi
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#
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# Allow the host system to know the IP address of our new guest.
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#
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if [ -z "${dhcp}" ]; then
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if ( grep ${hostname} /etc/hosts > /dev/null ) ; then
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logMessage Host already has IP address for the host ${hostname}.
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else
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#
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# Short host name.
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#
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name=`echo ${hostname} | awk -F. '{print $1}'`
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if [ -z "${nohosts}" ]; then
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logMessage Adding ${hostname} and ${name} to /etc/hosts on the host
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echo "${ip1} ${hostname} ${name}" >> /etc/hosts
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#
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# If we've updated the /etc/hosts file on the host machine
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# and there is an installation of dnsmasq installed then
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# reload it.
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#
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# This will let the local LAN clients lookup the new address.
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#
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if [ -x /usr/sbin/dnsmasq ] ; then
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if [ -e /var/run/dnsmasq.pid ]; then
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logMessage Allowing DNSMasq to restart.
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kill -s HUP `cat /var/run/dnsmasq.pid`
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fi
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fi
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fi
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fi
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fi
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#
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# Log our finish
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#
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logMessage Script $0 finished
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