Hydra patch management

For compliance, patch management is required on the Hydra. The solution has been designed with this in mind. Please follow the guidelines below. This will allow you to update the Hydra with all relevant security patches as required.

1. Prepare the packages that will be held in place

   CODE

   apt list --installed |grep docker
   apt-mark hold docker-ce

2. Now configure automatic security updates

   CODE

   apt install unattended-upgrades
   dpkg-reconfigure unattended-upgrades

3. This requires a manual run for the first time

   CODE

   unattended-upgrade

Your system is now configured for automatic updates.