Patching Amazon ECS

Rackspace’s recommended method for securing ECS clusters with current software updates is to update the environment to the latest available Amazon ECS-Optimized AMI. Following this, rotate (replace) the host instances following the methods described in the Patching Guide for Amazon EC2 document.


If an ECS cluster is using a custom AMI, this AMI will need to be rebuilt with the necessary updates prior to updating the environment with the new AMI and following the rest of the recommended method above.