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SCHEDULER.md

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Event Scheduler

CloneSquad has an integrated time scheduling module leveraging, behing the scene, CloudWatch Event rules. Each item of the DynamoDB table 'CloneSquad-{GroupName}-Scheduler' will be translated in a CloudWatch Event rule.

Actions linked to an event are configuration parameter settings in the 'CloneSquad-{GroupName}-Configuration' DynamoDB table.

An example of a "complex" scaling using the Event scheduler in located in examples/environments/demo-scheduled-events/. It implements a schedule plan over 2 hours that starts and stops instances to draw a Sinus wave on the Cloudwatch dashboard.

Configuration of an event in the DynamoDB table has the following format: The Key is a uniq name and value is a MetaString.

| Key            | Value                                                                    |
|----------------|--------------------------------------------------------------------------|
| <event_name1>  | cron(0 * * * ? *),config.active_parameter_set=test-pset                  |
| <event_name2>  | cron(0 6\\,18 0 * ? *),ec2.schedule.min_instance_count=3,ec2.other_key=4 |

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