Files
addons/dhcp_server/run.sh
Pascal Vizeli 2cb7569634 Add DNS server (#83)
Add DNS server
2017-05-23 17:18:14 +02:00

49 lines
1.6 KiB
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#!/bin/bash
set -e
CONFIG_PATH=/data/options.json
DOMAIN=$(jq --raw-output '.domain' $CONFIG_PATH)
DNS=$(jq --raw-output '.dns | join(", ")' $CONFIG_PATH)
NETWORKS=$(jq --raw-output '.networks | length' $CONFIG_PATH)
HOSTS=$(jq --raw-output '.hosts | length' $CONFIG_PATH)
sed -i "s/%%DOMAIN%%/$DOMAIN/g" /etc/dhcpd.conf
sed -i "s/%%DNS_SERVERS%%/$DNS/g" /etc/dhcpd.conf
# Create networks
for (( i=0; i < "$NETWORKS"; i++ )); do
SUBNET=$(jq --raw-output ".networks[$i].subnet" $CONFIG_PATH)
NETMASK=$(jq --raw-output ".networks[$i].netmask" $CONFIG_PATH)
RANGE_START=$(jq --raw-output ".networks[$i].range_start" $CONFIG_PATH)
RANGE_END=$(jq --raw-output ".networks[$i].range_end" $CONFIG_PATH)
BROADCAST=$(jq --raw-output ".networks[$i].broadcast" $CONFIG_PATH)
ROUTERS=$(jq --raw-output ".networks[$i].routers | joint(\", \")" $CONFIG_PATH)
{
echo "subnet $SUBNET netmask $NETMASK {"
echo " range $RANGE_START $RANGE_END;"
echo " option routers $ROUTERS;"
echo " option broadcast-address $BROADCAST;"
echo "}"
} >> /etc/dhcpd.conf
done
# Create hosts
for (( i=0; i < "$HOSTS"; i++ )); do
MAC=$(jq --raw-output ".hosts[$i].mac" $CONFIG_PATH)
NAME=$(jq --raw-output ".hosts[$i].name" $CONFIG_PATH)
IP=$(jq --raw-output ".hosts[$i].ip" $CONFIG_PATH)
{
echo "host $NAME {"
echo " hardware ethernet $MAC;"
echo " fixed-address $IP;"
echo " option host-name \"$NAME\";"
echo "}"
} >> /etc/dhcpd.conf
done
# run dhcp server
exec /usr/sbin/dhcpd -4 -f -d --no-pid -lf /data/dhcpd.lease -cf /etc/dhcpd.conf < /dev/null