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Answer: Update CloudFormation with an AWS::Lambda::Permission resource to ensure events.amazonaws.com has permissions to invoke the function.
For EventBridge (former CloudWatch Events) to invoke Lambda, you need lambda:AddPermission to grant events.amazonaws.com (the service principal) invoke permission on the Lambda. This is often done with AWS::Lambda::Permission resource in CFN.
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A CloudFormation template provisions an EventBridge rule that invokes a Lambda function. The Lambda function has CloudWatch Logs permissions but is not running. How should this be resolved?
A
Update CloudFormation with an AWS::IAM::Role with permissions for EventBridge to invoke the function; assign to the EventBridge rule.
B
Update CloudFormation with an AWS::IAM::Role; assign as the function execution role.
C
Update CloudFormation with an AWS::Lambda::Permission resource to ensure events.amazonaws.com has permissions to invoke the function.
D
Update CloudFormation with an AWS::Lambda::Permission resource to ensure lambda.amazonaws.com has permissions to invoke the function.
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