Fix/check sns topic arn empty str #50
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check sns topic arn empty str before setting AlarmActions Param validation failed: Invalid length for parameter AlarmActions[0], value: 0, valid min length: 1
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Issue #, if available:
Description of changes:
In the CloudFormation stack,
AlarmNotificationARNdefaults to empty string. When passed to AlarmActions for CloudWatch Alarms, this results in the errorParameter validation failed: Invalid length for parameter AlarmActions[0], value: 0, valid min length: 1.Fix: Check for empty string before setting AlarmActions
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