What does this AWS Solution do?
The Instance Scheduler on AWS solution helps you control your AWS resource cost by configuring start and stop schedules for your Amazon Elastic Compute Cloud (Amazon EC2) and Amazon Relational Database Service (Amazon RDS) instances.
It also helps reduce operational costs by stopping resources that are not in use and starting resources when capacity is needed. For example, a company can use Instance Scheduler on AWS in a production environment to automatically stop instances outside of business hours every day. If you leave all of your instances running at full utilization, this solution can result in reducing the instance utilization, which will reduce overall cost based on the schedules configured.
Cross-account instance scheduling
Configure schedules or periods using Scheduler CLI
Configure schedules or periods using SSM maintenance window
AWS Solution overview
The diagram below presents the architecture you can automatically deploy using the solution's implementation guide and accompanying AWS CloudFormation template.
Instance Scheduler on AWS architecture
1. The AWS CloudFormation template sets up an Amazon CloudWatch event at a customer-defined interval. This event invokes the Instance Scheduler AWS Lambda function. During configuration, the user defines the AWS Regions and accounts, as well as a custom tag that Instance Scheduler on AWS will use to associate schedules with applicable Amazon EC2 and Amazon RDS instances.
2. These values are stored in Amazon DynamoDB, and the Lambda function retrieves them each time it runs. You can then apply the custom tag to applicable instances.
3. During initial configuration of the Instance Scheduler, you define a tag key you will use to identify applicable Amazon EC2 and Amazon RDS instances. When you create a schedule, the name you specify is used as the tag value that identifies the schedule you want to apply to the tagged resource. For example, a user might use the solution’s default tag name (tag key) Schedule and create a schedule called uk-office-hours. To identify an instance that will use the uk-office-hours schedule, the user adds the Schedule tag key with a value of uk-office-hours.
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