title: How to determine the Cloudwatch log stream for a ECS service per date
body: <p>I've got an ECS Cluster service running with a task, and can view its Cloudwatch log streams using the AWS console.</p>
  
  <p>How a set date for <code>awslogs-stream-prefix</code> because I want to recognize logs stream by date by date.</p>
  
  <pre><code>  "containerDefinitions": [
      {
        "dnsSearchDomains": null,
        "logConfiguration": {
          "logDriver": "awslogs",
          "secretOptions": null,
          "options": {
            "awslogs-group": "/ecs/my-task-definition",
            "awslogs-region": "us-east-1",
            "awslogs-stream-prefix": "ecs"
          }
  </code></pre>