# Create an EventBridge rule for a CodeCommit source (console)
<a name="pipelines-trigger-source-repo-changes-console"></a>

**Important**  
If you use the console to create or edit your pipeline, your EventBridge rule is created for you.

**To create an EventBridge rule for use in CodePipeline operations**

1. Open the Amazon EventBridge console at [https://console.aws.amazon.com/events/](https://console.aws.amazon.com/events/).

1. In the navigation pane, choose **Rules**. Leave the default bus selected or choose an event bus. Choose **Create rule**.

1. In **Name**, enter a name for your rule.

1. Under **Rule type**, choose **Rule with an event pattern**. Choose **Next**.

1. Under **Event source**, choose **AWS events or EventBridge partner events**.

1. Under **Sample event type**, choose **AWS events**.

1. In **Sample events**, type CodeCommit as the keyword to filter on. Choose **CodeCommit Repository State Change**.

1. Under **Creation method**, choose **Customer pattern (JSON editor)**.

   Paste the event pattern provided below. The following is a sample CodeCommit event pattern in the **Event** window for a `MyTestRepo` repository with a branch named `main`:

   ```
   {
     "source": [
       "aws.codecommit"
     ],
     "detail-type": [
       "CodeCommit Repository State Change"
     ],
     "resources": [
       "arn:aws:codecommit:us-west-2:80398EXAMPLE:MyTestRepo"
     ],
     "detail": {
       "referenceType": [
         "branch"
       ],
       "referenceName": [
         "main"
       ]
     }
   }
   ```

1. In **Targets**, choose **CodePipeline**.

1. Enter the pipeline ARN for the pipeline to be started by this rule.
**Note**  
You can find the pipeline ARN in the metadata output after you run the **get-pipeline** command. The pipeline ARN is constructed in this format:   
arn:aws:codepipeline:*region*:*account*:*pipeline-name*  
Sample pipeline ARN:  
`arn:aws:codepipeline:us-east-2:80398EXAMPLE:MyFirstPipeline`

1. To create or specify an IAM service role that grants EventBridge permissions to invoke the target associated with your EventBridge rule (in this case, the target is CodePipeline): 
   + Choose **Create a new role for this specific resource** to create a service role that gives EventBridge permissions to your start your pipeline executions.
   + Choose **Use existing role** to enter a service role that gives EventBridge permissions to your start your pipeline executions.

1. (Optional) To specify source overrides with a specific image ID, use the input transformer to pass the data as a JSON parameters. You can also use the input transformer to pass pipeline variables.
   + Expand **Additional settings**.

     Under **Configure target input**, choose **Configure input transformer**.

     In the dialog window, choose **Enter my own**. In the **Input path** box, type the following key-value pairs.

     ```
     {"revisionValue": "$.detail.image-digest"}
     ```
   + In the **Template** box, type the following key-value pairs.

     ```
     {
         "sourceRevisions": [
             {
                 "actionName": "Source",
                 "revisionType": "COMMIT_ID",
                 "revisionValue": "<revisionValue>"
             }
         ],
         "variables": [
             {
                 "name": "Branch_Name",
                 "value": "value"
             }
         ]
     }
     ```
   + Choose **Confirm**.

1. Choose **Next**.

1. On the **Tags** page, choose **Next**.

1. On the **Review and create** page, review the rule configuration. If you're satisfied with the rule, choose **Create rule**.