Running aws cli command in Cloudformation fails

Question

Hi,

In Cloudformation I keep getting this error when trying to run a AWS CLI command

```
Template` contains errors.: Template format error: Unrecognized resource types: `[AWSUtility::CloudFormation::CommandRunner]
```

This is my CloudFormation template

```
AWSTemplateFormatVersion: 2010-09-09
Resources:
  Command:
    Type: 'AWSUtility::CloudFormation::Command'
    Properties:
      Command: aws s3 ls | sed -n 1p | cut -d " " -f3 > /command-output.txt
      Role: 
Outputs:
    Output:
        Description: The output of the CommandRunner.
        Value: !GetAtt Command.Output
```

I have added IAM permissions as per documentation https://github.com/aws-cloudformation/aws-cloudformation-resource-providers-awsutilities-commandrunner

```

"cloudformation:ValidateTemplate",
                  "cloudformation:GetTemplateSummary",
                  "cloudformation:*",
                  "s3:CreateBucket",
                  "s3:DeleteBucket",
                  "s3:PutBucketPolicy",
                  "s3:PutObject",
                  "cloudformation:RegisterType",
                  "cloudformation:DescribeTypeRegistration",
                  "iam:createRole"
                ],
                "Resource": ["*"]
```

Tried Role ARN as well

Any help appreciated :)

Matt-B · Accepted Answer

Hi
Please see this article for the usage, and pay close attention to the section below

https://aws.amazon.com/premiumsupport/knowledge-center/cloudformation-commandrunner-stack/

```
Important: If you haven't already registered the AWSUtility::CloudFormation::CommandRunner resource, then run the following commands. The register.sh script uses the awsutility-cloudformation-commandrunner.zip to register the resource type in your AWS Region.
```

See this GitHub repo for the install instructions

https://github.com/aws-cloudformation/aws-cloudformation-resource-providers-awsutilities-commandrunner#user-installation-steps

Also, your template shows

```
Resources:
  Command:
    Type: 'AWSUtility::CloudFormation::Command'
```
Should be

Type: 'AWSUtility::CloudFormation::**CommandRunner**

Running aws cli command in Cloudformation fails

Relevant content