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do-dyndns.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+DOMAIN=${1}
+RECORD=${2}
+API_TOKEN=${3}
+
+[[ ! -z $DOMAIN ]] || exit 1;
+[[ ! -z $RECORD ]] || exit 1;
+[[ ! -z $API_TOKEN ]] || exit 1;
+
+IPV4=$(curl -s https://ip4.seeip.org)
+IPV6=$(curl -s https://ip6.seeip.org)
+
+[[ $IPV4 =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]] || exit 1;
+# TODO: validate ipv6 response
+
+ID_IPV4=$(doctl -t ${API_TOKEN} compute domain records list --no-header --format ID,Type,Name ${DOMAIN} | grep ${RECORD} | grep " A " | cut -d' ' -f 1)
+ID_IPV6=$(doctl -t ${API_TOKEN} compute domain records list --no-header --format ID,Type,Name ${DOMAIN} | grep ${RECORD} | grep " AAAA " | cut -d' ' -f 1)
+
+doctl -t ${API_TOKEN} compute domain records update ${DOMAIN} --record-id ${ID_IPV4} --record-data ${IPV4} --record-ttl 60
+doctl -t ${API_TOKEN} compute domain records update ${DOMAIN} --record-id ${ID_IPV6} --record-data ${IPV6} --record-ttl 60