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Adding a little CE / S3 mapping hint (#6025) 

Signed-off-by: Matthias Wessendorf <mwessend@redhat.com>
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Matthias Wessendorf 2024-06-25 10:26:22 +02:00 committed by GitHub
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blog/docs/articles/aws_to_func_migration.md
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@ -73,6 +73,13 @@ Note that this complete program contains only one function, which is focused on
Looking closer at the signature of the `Handle` function, we see the standard `Context` API and an `Event` type. This is no vendor specific import. It references the Golang SDK for [CNCF CloudEvents](https://www.cncf.io/projects/cloudevents/){:target="_blank"}, which is a specification for describing event data in a common way.
In this example the `subject` is mapped to the name of the file, or the S3 Object Key, while the `source` attribute is containing the bucket name. In case the entire file is desired for processing, it can be accessed via the `data` attribute.
!!! note
The CNCF CloudEvents specification allows a generic and independent approach for receiving events from 3rd party systems, while providing a common, standardized API.
## Knative CLI for Smooth Development and Deployment
The Knative Function project does not only offer a vendor-neutral approach for creating serverless functions, it also comes with a handy CLI that assists with the creation of the Linux container image and the deployment to a Kubernetes cluster. This is covered in the [previous blog post](/blog/articles/consuming_s3_data_with_knative){:target="_blank"}. It also allows you to test and run the function locally by invoking: