policy.json

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "ecs:RunTask"
      ],
      "Resource": [
        "${replace(aws_ecs_task_definition.definition.arn, "/:\\d+$/", ":*")}"
      ]
    },
    {
      "Effect": "Allow",
      "Action": "iam:PassRole",
      "Resource": [
        "*"
      ]
    }
  ]
}