ECS Fargate Scheduled Task not running

Question

I'm trying to setup a scheduled task with ECS Fargate but I cannot figure out why it is not running. I can confirm the task works correctly using RunTask but when I try to trigger it on a schedule all I get is a bunch of 'FailedInvocations' with no explanation.

I do know though that the rule is being triggered so this is a good sign. See the screenshot below:

But everytime it is triggered there is just a 'FailedInvocation'. Here's the scheduling rule:

And the default permissions on the ecsEventRole with just ecs:runTask:

{     "Version": "2012-10-17",     "Statement": [         {             "Effect": "Allow",             "Action": [                 "ecs:RunTask"             ],             "Resource": [                 "*"             ]         }     ] } 

My hunch says that this ecsEventsRole doesn't have enough permissions. Should I try to give it the ones that ecsTaskExecutionRole has?

Thanks

EDIT: This is now supported in us-east-1 region. See comments.

Answer 1

Although it's been over an year, AWS still don't have a proper way to see invocation logs.

As you already know we can invoke tasks by RunTask manually, so does Scheduled Task.

The only difference is that Scheduled Task is triggered by CloudWatch rules.

We can easily see invoke logs in CloudTrail Event history, go there and filter events with Event name: RunTask and select the time range you want to check, find the event and click View Event, you'll see the error code and response.

Answer 2

I ran into a similar issue where regular ECS Scheduled Tasks were not running.

I finally resolved it by adding an additional policy to ecsEventsRole which allows CloudWatch Events to pass IAM roles to ECS Tasks:

{     "Version": "2012-10-17",     "Statement": [         {             "Effect": "Allow",             "Action": [                 "iam:ListInstanceProfiles",                 "iam:ListRoles",                 "iam:PassRole"             ],             "Resource": "*"         }     ] }