iam-policy.json

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "ecs:UpdateService",
                "ecs:DescribeServices",
                "sqs:GetQueueAttributes"
            ],
            "Resource": [
                "arn:aws:ecs:eu-central-1:123456789:service/My-ECS-Cluster/My-ECS-Service",
                "arn:aws:sqs:eu-central-1:123456789:my-sqs-queue"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "ecs:ListServices",
                "cloudwatch:PutMetricData",
                "ecs:ListTasks",
                "ecs:DescribeServices",
                "cloudwatch:GetMetricStatistics",
                "ecs:DescribeTasks",
                "cloudwatch:ListMetrics",
                "ecs:DescribeClusters",
                "ecs:ListClusters"
            ],
            "Resource": "*"
        }
    ]
}