Scheduled AWS Batch Job with EventBridge Not Working

Question

What I am trying to do: 
* Use Eventbridge to schedule an AWS Batch job to run daily.

The problem: 
* I've created a rule in Eventbridge for a working AWS batch job.,  but it's is not being kicked off at the scheduled time.

The only thing that I can think of that is going wrong is maybe I don't have the correct role type, trust relationship and policy for the rule? Any help provided would be greatly appreciated, thank you!

Role Information

Role use case type: Allows EC2 instances to call aws services on your behalf

Trust Relationships
```
{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Principal": {
                "Service": "ec2.amazonaws.com"
            },
            "Action": "sts:AssumeRole"
        },
        {
            "Effect": "Allow",
            "Principal": {
                "Service": "events.amazonaws.com"
            },
            "Action": "sts:AssumeRole"
        }
    ]
}
```

Permissions (related to EventBridge only): AWSBatchServiceEventTargetRole
```
{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "batch:SubmitJob"
            ],
            "Resource": "*"
        }
    ]
}
```

Answer

Hi, I have checked one of our functioning **EventBridge** rules with AWS Batch jobs target. Provided **Role** has following **Trust Relationship**:

```
{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Principal": {
                "Service": "events.amazonaws.com"
            },
            "Action": "sts:AssumeRole"
        }
    ]
}
```
And following permission in the **Policy**:
```
{
    "Statement": [
        {
            "Action": [
                "batch:SubmitJob"
            ],
            "Effect": "Allow",
            "Resource": [
                "arn:aws:batch:region:account-number:job-definition/our-job-xxxxxxx",
                "arn:aws:batch:region:account-number:job-definition/our-job-xxxxxxx:*",
                "arn:aws:batch:region:account-number:job-queue/our-job-xxxxxxx"
            ]
        }
    ],
    "Version": "2012-10-17"
}
```
Also check, whether your Cron expression is OK.

Scheduled AWS Batch Job with EventBridge Not Working

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