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description "MAAS instance of ISC DHCP server"
author "Jeroen Vermeulen <jtv@canonical.com>"
start on runlevel [2345]
stop on runlevel [!2345]
env CONFIG_FILE=/etc/maas/dhcpd.conf
env PID_DIR=/run/maas/dhcp
env PID_FILE=/run/maas/dhcp/dhcpd.pid
env LEASES_DIR=/var/lib/maas/dhcp
env LEASES_FILE=/var/lib/maas/dhcp/dhcpd.leases
# This is where we write what interfaces dhcpd should listen on.
env INTERFACES_FILE=/var/lib/maas/dhcpd-interfaces
pre-start script
if [ ! -f $CONFIG_FILE ]; then
echo "$CONFIG_FILE does not exist. Aborting."
stop
exit 0
fi
if [ ! -f $INTERFACES_FILE ]; then
echo "$INTERFACES_FILE does not exist. Aborting."
stop
exit 0
fi
if ! /usr/sbin/dhcpd -t -q -4 -cf $CONFIG_FILE > /dev/null 2>&1; then
echo "dhcpd self-test failed. Please fix the config file."
echo "The error was: "
/usr/sbin/dhcpd -t -4 -cf $CONFIG_FILE
stop
exit 0
fi
end script
respawn
script
INTERFACES=`cat "${INTERFACES_FILE}"`
# Allow dhcp server to write lease and pid file.
mkdir -p $PID_DIR
chown dhcpd:dhcpd $PID_DIR
# As of Quantal, the leases file must be owned by root:root (even though
# the daemon will run under an unprivileged user).
# In Precise, ownership was supposed to be dhcpd:dhcpd.
#
# maas packages on saucy are only supported with newer isc-dhcp via
# the cloud-archive. See bug 1231693 for more information, including
# a patch that would actually work to support all, but is complex.
mkdir -p $LEASES_DIR
chown root:root $LEASES_DIR
[ -e $LEASES_FILE ] || touch $LEASES_FILE
for LFILE in $LEASES_FILE $LEASES_FILE~; do
if [ -e $LFILE ]; then
chown root:root $LFILE
chmod a+r $LFILE
fi
done
exec /usr/sbin/dhcpd -user dhcpd -group dhcpd -f -q -4 -pf $PID_FILE -cf $CONFIG_FILE -lf $LEASES_FILE $INTERFACES
end script
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