DevOps Guru CloudFormation with Tags

Question

Hi,

As a developer, I am trying to deploy DevOps Guru using CloudFormation to target specific resources with tag.

I use the following code based on the documentation https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-devopsguru-resourcecollection-tagcollection.html
```
Resources:
  DevOpsGuruMonitoring:
    Type: AWS::DevOpsGuru::ResourceCollection
    Description: AWS operations service to improve the performance and availability of their applications
    Properties:
      ResourceCollectionFilter:
        Tags:
          - AppBoundaryKey: !Ref AppBoundaryKey
```

However, CloudFormation failed to update DevOps Guru with the following

```
Resource handler returned message: "null" (RequestToken: 68fa3896-44bf-eab6-2b63-e3bf13390fe0, HandlerErrorCode: InternalFailure)
```

The error is unclear and it looks like CloudFormation internal error to work with Tags value.

Any thoughts?

James

Accepted Answer

Following template worked for me, for all resources have you tried with "*" as a value for TagValues?

```
DevOpsGuruResourceCollection:
    Type: AWS::DevOpsGuru::ResourceCollection
    Properties:
      ResourceCollectionFilter:
        Tags:
        - AppBoundaryKey: "Devops-guru-cfn-default"
          TagValues:
          - "devopsgurudemo-cluster-aws-test-1"
```

Update: tested with "*" and it works as well.

```
  DevOpsGuruResourceCollection:
    Type: AWS::DevOpsGuru::ResourceCollection
    Properties:
      ResourceCollectionFilter:
        Tags:
        - AppBoundaryKey: "Devops-guru-cfn-default"
          TagValues:
          - "*"
```

Answer

Hello, looks like [TagValues](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-devopsguru-resourcecollection-tagcollection.html#cfn-devopsguru-resourcecollection-tagcollection-tagvalues) is a required property when `AppBoundaryKey` is specified and omitting it is returning the error "InternalFailure". The same is seen in AWS console as well, where, the operation fails to proceed with error "`Please select at least one resource to analyze`" if no option is selected under `Select tag values`. I was able to reproduce the issue and fixed it by adding the `TagValues` property. Please consider adding the property and retry.

Template snippet for your reference:
```
...
        Tags:
          - AppBoundaryKey: !Ref AppBoundaryKey
            TagValues: 
                - XXX
...
```

I have submitted a feedback for the team in the AWS CloudFormation document here [TagValues](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-devopsguru-resourcecollection-tagcollection.html#cfn-devopsguru-resourcecollection-tagcollection-tagvalues) to update it as a required property, that is, `Required: Yes`.

DevOps Guru CloudFormation with Tags

Relevant content