a-roller v1.1.0

A-Roller

The roller script takes a AMI name as a parameter and performs a rolling update on the selected auto scaling group.

First the auto scaling group will be updated to use the new AMI and its MinSize, MaxSize and DesiredCapacity values are increase by 1. Once scaled out, roller terminates the remaining instances with the old launch configuration and waits that a new instance with the new launch configruation gets ready. This step will be repeated till all old instances are terminated. Finally the auto scaling capacity will be set to its original state.

Installation

npm install -g a-roller

Usage

roller --region aws-region --group "Auto scaling group name" --ami "AMI name"