This repo contained two simply things:
- index.js: Lambda function which can enable you to schedule DynamoDB Backups
- ondemand-backups-scheduler-policy.json: IAM Role Policy for the Lambda function
Detailed walk through is provided here:
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How to take backups
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How to restore those backups
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How to schedule on demand backups using CloudWatch Rules and Lambda
https://www.abhayachauhan.com/2017/12/dynamodb-scheduling-on-demand-backups/