Deployment scripts.

deployment/primary-watchdog.sh

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+#!/bin/sh
+
+# Watchdog for the primary name server.
+
+REMOTE="gandi"
+REMOTE_DIR="/var/powerdns/"
+DIR="$REMOTE_DIR"
+
+echo "directory: $DIR"
+
+local_update() {
+	echo "local update of domain $1"
+	pdns_control bind-reload-now $1
+
+	# In case the update cannot be done, it might be because the zone wasn't loaded at all.
+	if [ $? -ne 0 ]; then
+		pdns_control bind-add-zone $1 $DIR/$1
+	fi
+}
+
+local_delete() {
+	echo "TODO: local delete of domain $1"
+}
+
+remote_update() {
+	echo "remote update on $REMOTE $REMOTE_DIR/$1"
+	scp $DIR/$1 $REMOTE:$REMOTE_DIR
+}
+
+remote_delete() {
+	echo "remote delete on $REMOTE $REMOTE_DIR/$1"
+	ssh $REMOTE rm $REMOTE_DIR/$1
+}
+
+action() {
+	event=$1
+	file=$2
+
+	echo $event | grep "MOVED_TO" >/dev/null
+	if [ $? -eq 0 ]; then
+		echo "$file has been modified"
+		local_update $file
+		remote_update $file
+	fi
+
+	echo $event | grep "DELETE" >/dev/null
+	if [ $? -eq 0 ]; then
+		echo "$file has been deleted"
+		local_delete $file
+		remote_delete $file
+	fi
+}
+
+# NOTE: dnsmanagerd writes bind9 files in $DIR and with a suffix ".wip" then moves them
+#       to remove the suffix. This way, the final file is expected to never be corrupted,
+#       for example by copying it to the secondary DNS server while the zone not being
+#       fully written to the file.
+#
+# Therefore, the different interesting actions we should monitor are:
+# - moved_to: a zone file has been modified
+# - delete: a domain has been removed
+opts="-e moved_to -e delete -m"
+echo "inotifywait ${opts} --format '%:e %f' $DIR"
+inotifywait ${opts} --format '%:e %f' $DIR | while read FILE; do action $FILE ; done

deployment/secondary-watchdog.sh

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+#!/bin/sh
+
+# Primary sends files in $DIR.
+DIR="/var/powerdns/"
+
+local_update() {
+	echo "update domain $1"
+	pdns_control bind-reload-now $1
+
+	# In case the update cannot be done, it might be because the zone wasn't loaded at all.
+	if [ $? -ne 0 ]; then
+		pdns_control bind-add-zone $1 $DIR/$1
+	fi
+}
+
+local_delete() { echo "TODO: delete domain $1" ; }
+
+action() {
+	event=$1
+	file=$2
+
+	echo $event | grep "CLOSE_WRITE" >/dev/null
+	if [ $? -eq 0 ]; then
+		echo "$file has been modified"
+		local_update $file
+	fi
+
+	echo $event | grep "DELETE" >/dev/null
+	if [ $? -eq 0 ]; then
+		echo "$file has been deleted"
+		local_delete $file
+	fi
+}
+
+# NOTE: primary nameserver sends files in $DIR upon modification or remove them
+#
+# Therefore, the different interesting actions we should monitor are:
+# - close_write: a zone file has been modified
+# - delete: a domain has been removed
+opts="-e close_write -e delete -m"
+echo "inotifywait ${opts} --format '%:e %f' $DIR"
+inotifywait ${opts} --format '%:e %f' $DIR | while read FILE; do action $FILE ; done