Send message from SQS to ECS task via Event bridge Rule

Question

I have setup the SQS and event bridge rule. On receiving the message the ECS task is getting triggered. But I am not able to figure out how to send the message body to the task definiton argument.

When I was doing it with the code, I was using ECS run-task to do it by overriding the command.

```
response = ecs.run_task(
        # edit
        cluster=settings.ECS_CLUSTER,
        taskDefinition=settings.ECS_TASK_DEFINITION,
        count=1,
        enableECSManagedTags=True,
        enableExecuteCommand=True,
        launchType="FARGATE",
        networkConfiguration={
            "awsvpcConfiguration": {
                "subnets": settings.subnets,
                "securityGroups": [
                    settings.security_groups,
                ],
            },
        },
        overrides={
            "containerOverrides": [
                {
                    "command": ["python3", task_path, "--request", payload],
                    "name": settings.ECS_TASK_CONTAINER_NAME,
                },
            ],
        },
    )
```
I want to pass my SQS message body to the task defintion as the input for the --request argument

Answer

Hi, When using Amazon EventBridge Pipes you should be able to pass the body of the SQS payload using the "$.body" expression directly in your ECS Run Task Target Definition.

https://docs.aws.amazon.com/eventbridge/latest/userguide/eb-pipes-input-transformation.html#input-transform-implicit

You will need to replace your settings variables with values from CloudFormation/CDK and convert the existing call to a JSON.  Then use the Input Transformer to extract the SQS Message body and pass it to the ECS Run Task Target.

Something like this:

```
       {
	"cluster": "cluster-name",
	"taskDefinition": "task-definition",
	"count": 1,
	"enableECSManagedTags": "True",
	"enableExecuteCommand": "True",
	"launchType": "FARGATE",
	"networkConfiguration": {
		"awsvpcConfiguration": {
			"subnets": [
				"subnets"
			],
			"securityGroups": [
				"security-groups-ids"
			]
		}
	},
	"overrides": {
		"containerOverrides": [
			{
				"command": [
					"python3",
					"task_path",
					"--request",
					<$.body>
				],
				"name": "container-task-name"
			}
		]
	}
}
```

The following github sample provides CDK to deploy this scenario:
https://github.com/rhlarora84/sqs-fargate-eventbridge-pipe/blob/main/lib/app-stack.ts

Send message from SQS to ECS task via Event bridge Rule

相關內容