deployer wait for code

lambda.js

return new Promise(
    (resolve, reject) => {
      const waitForParams = {
        tasks: [taskArn],
        cluster: ecs_cluster,
      }
      //provisioning takes time as well
      ecs.waitFor('tasksRunning', waitForParams, (err, data) => {
        if (err) {
          ecs.describeTasks(waitForParams, (errDt, data) => {
            if (errDt) {
              reject(errDt)
            } else {
              console.log('The task is stopped: ' + data.tasks[0].stoppedReason)
              reject(err)
            }
          })
        } else {
          resolve(true)
        }
      })
    })