Amazon CloudWatch Events
User Guide

Creating a CloudWatch Events Rule That Triggers on a Schedule

Use the following steps to create a CloudWatch Events rule that triggers on a regular schedule.

To create a rule that triggers on a regular schedule

  1. Open the CloudWatch console at

  2. In the navigation pane, choose Events, Create rule.

  3. For Event source, choose Schedule.

  4. Choose Fixed rate of and specify how often the task is to run, or choose Cron expression and specify a cron expression that defines when the task is to be triggered. For more information about cron expression syntax, see Schedule Expressions for Rules.

  5. For Targets, choose Add Target and choose the AWS service that is to act when an event of the selected type is detected.

  6. In the other fields in this section, enter information specific to this target type, if any is needed.

  7. For many target types, CloudWatch Events needs permissions to send events to the target. In these cases, CloudWatch Events can create the IAM role needed for your event to run:

    • To create an IAM role automatically, choose Create a new role for this specific resource.

    • To use an IAM role that you created before, choose Use existing role.

  8. Optionally, repeat steps 5-7 to add another target for this rule.

  9. Choose Configure details. For Rule definition, type a name and description for the rule.

    The rule name must be unique within this Region.

  10. Choose Create rule.