export STATUSCAKE_APIKEY="<%= @passwords["statuscake"] %>"
export PATH=/usr/local/bin:$PATH
-make --quiet --jobs --directory=/var/lib/dns update > /dev/null
+lockfile-create --use-pid /var/lib/dns/update || exit 1
+
+make --quiet --jobs --directory=/var/lib/dns update_primary > /dev/null
+
+lockfile-remove /var/lib/dns/update