Provision S3 Bucket with serverless.yml

So, our solution (me and my friend. it’s two developer project), is get all the users from User Pool and save it as json blog on to S3 bucket. serverless.yml supports resource creation with minimum Cloud Formation syntax.

resources

You can define any AWS resources in a property titled resources. What goes in this property is raw CloudFormation template syntax, in YAML. The following is my resource definition for S3 bucket where the function will upload the backup data to.

resources:
  Resources:
    usersBackupBucket:
      Type: AWS::S3::Bucket
      Properties:
        BucketName: xxx-xxxxx-users-backup
        AccessControl: Private
        CorsConfiguration:
          CorsRules:
            - AllowedMethods:
                - GET
                - PUT
                - POST
                - HEAD
              AllowedOrigins:
                - "*"
              AllowedHeaders:
                - "*"