Cloudwatch exporter doesn't discover SQS queues without tags

[tokongs]

What's wrong?

Sorry for the noise if this is intended behavior, but it's confusing.

When using the discover block with the Cloudwatch exporter, without search_tags set. Only queues that have some tag will be discovered.

Steps to reproduce

1. Create an SQS queue without any tags
2. Create an SQS queue with some tag

3. Run alloy with a config like below.

   prometheus.exporter.cloudwatch "queues" {
   sts_region = "eu-north-1"
   
   discovery {
       type        = "AWS/SQS"
       regions     = ["eu-north-1"]
   
       metric {
           name       = "NumberOfMessagesSent"
           statistics = ["Average"]
           period     = "1m"
       }
   }
   }

4. See that only the one with a tag is discovered.

System information

No response

Software version

No response

Configuration

prometheus.exporter.cloudwatch "queues" {
    sts_region = "eu-north-1"

    discovery {
        type        = "AWS/SQS"
        regions     = ["eu-north-1"]

        metric {
            name       = "NumberOfMessagesSent"
            statistics = ["Average"]
            period     = "1m"
        }
   }
}

Logs

No response

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