Take immediate action based on events on AWS resources

Call a AWS Lambda function when an EC2 instance starts

Notify an Amazon SNS topic when an Auto Scaling event happens

(ADDITIONAL FEATURE) Schedule events - Use Unix cron syntax

Schedule a call to Lambda function every hour or every minute

Send a notification to Amazon SNS topic every 3 hours

Example Use Cases:

Send an email after execution of every stage in a pipeline

Send an email if an EC2 instance is stopped

Example Events:

CodeBuild (Build State-change), CodeDeploy (Deployment State-change)

CodeCommit (pullRequestCreated)

CodePipeline (Pipeline Execution State Change, Stage Execution State Change)

Amazon EC2 State Change Events - stop, start, terminate