Add S3 attributes to the semantic conventions for AWS SDK

[AlexanderWert]

What are you trying to achieve?

There is a great set of attributes for DynamoDB-related spans in the semantic conventions for the AWS SDK.
Something similar would be also valuable for S3 operations. For example when a span is created for an S3 getObject operation it would be interesting and valuable for analysis to know which S3 bucket and which object is being accessed.

I'm proposing to add relevant S3 specific attributes for the main S3 operations:

Bucket Operations

Operation	Proposed attributes
create-bucket	aws.s3.bucket
delete-bucket	aws.s3.bucket
head-bucket	aws.s3.bucket
list-buckets	---

Object operations

Operation	Proposed attributes
copy-object	aws.s3.bucket, aws.s3.key, aws.s3.copy_source
delete-object	aws.s3.bucket, aws.s3.key
delete-objects	aws.s3.bucket, aws.s3.delete
get-object	aws.s3.bucket, aws.s3.key
head-object	aws.s3.bucket, aws.s3.key
list-objects	aws.s3.bucket
list-objects-v2	aws.s3.bucket
list-object-versions	aws.s3.bucket
put-object	aws.s3.bucket, aws.s3.key
restore-object	aws.s3.bucket, aws.s3.key
select-object-content	aws.s3.bucket, aws.s3.key, aws.s3.input_serialization, aws.s3.output_serialization

Multipart operations

Operation	Proposed attributes
abort-multipart-upload	aws.s3.bucket, aws.s3.key, aws.s3.upload_id
complete-multipart-upload	aws.s3.bucket, aws.s3.key, aws.s3.upload_id
create-multipart-upload	aws.s3.bucket, aws.s3.key
list-multipart-uploads	aws.s3.bucket
list-parts	aws.s3.bucket, aws.s3.key, aws.s3.upload_id
upload-part	aws.s3.bucket, aws.s3.key, aws.s3.upload_id, aws.s3.part_number
upload-part-copy	aws.s3.bucket, aws.s3.key, aws.s3.upload_id, aws.s3.part_number, aws.s3.copy_source

[AlexanderWert]

@willarmiros @iNikem @arminru As you were involved in the aws.dynamodb.* semantic conventions, what do you think about this proposal?

[willarmiros]

Hi @AlexanderWert - I love it, consider me in support. We also plan to add SQS attributes eventually as well!

[AlexanderWert]

Hi @jmacd,
how can we proceed with that? Does it make sense for me to create a PR for the above, already, or are there any objections with that proposal?

Thanks!

[carlosalberto]

Feel free to create a Pr @AlexanderWert - and let's discuss the details on the PR itself, once people take a look, etc. Thanks!