Problem

Installing Synchrony DC as a service following the instructions in Run Synchrony-standalone as a service on Linux does not automatically bring up Synchrony on reboot.

Environment

This issue has been verified on Ubuntu 18 and AWS EC2.

Steps to Reproduce

1. Install a single node Confluence DC on Ubuntu 18 or AWS as a Linux service
2. Shutdown Confluence
3. Follow the steps in Run Synchrony-standalone as a service on Linux
4. Remove /etc/init.d/confluence so Confluence does not start on reboot and also bring up Synchrony
5. Reboot the machine

Expected Results

1. Synchrony should start up automatically on reboot

Actual Results

1. Synchrony does not start up automatically on reboot
2. It can however be started up manually using sudo service synchrony start

Workaround

Manually create these symbolic links that Ubuntu's update-rc.d did not create

ln -s /etc/init.d/synchrony /etc/rc1.d/K95synchrony
ln -s /etc/init.d/synchrony /etc/rc2.d/K95synchrony
ln -s /etc/init.d/synchrony /etc/rc3.d/S95synchrony
ln -s /etc/init.d/synchrony /etc/rc4.d/K95synchrony
ln -s /etc/init.d/synchrony /etc/rc5.d/S95synchrony