Automatic Resizing EBS Volume with AWS Lambda

An Amazon EC2 instance's Amazon EBS volume use may exceed permitted capacity when

running active applications. This raises the possibility of a customer-impacting application outage when the provisioned capacity is used up, depending on the application in use.

 Automatically resizing the EBS volume can go a long way to remedy the situation and save a lot of time.

There is no longer a need to overprovision volumes. This method lowers your EBS cost by

gradually increasing volume capacity as more space is required.

Recently a client wanted a proactive way to manage EBS volumes to prevent outages due to

increase in capacity.

In this post, I will walk through the automatic EBS volume resizing process that developed for the

client, see its architecture and learn some best practices.