@Marvin I need to setup an event in S3 bucket, to trigger a prefect flow, what's the best way to do that?

To set up an event in an S3 bucket to trigger a Prefect flow, you would typically use AWS Lambda or another AWS service that can respond to S3 events. However, Prefect does not natively support triggering flows based on S3 events. You could set up a system where an S3 event triggers a Lambda function, which then hits a Prefect API to start a flow run. You would need to handle the AWS side of this setup yourself, as it's outside the scope of Prefect's functionality. For storing your code in an S3 bucket and relying on default worker settings for its runtime environment, you can use the s3 recipe provided by Prefect:

bash
$ prefect init --recipe s3 >> bucket: <insert bucket name here>

For more details, you can refer to the Prefect documentation. Remember that the agent begins submission of flow runs a short time (10 seconds) before they are scheduled to run. This allows time for the infrastructure to be created, so the flow run can start on time. In some cases, infrastructure will take longer than this to actually start the flow run. In these cases, the prefetch can be increased using the

--prefetch-seconds

option or the

PREFECT_AGENT_PREFETCH_SECONDS

setting. For more details, you can refer to the Prefect documentation. Please note that this is a general guide and might need adjustments based on your specific use case.

hitting a webhook from a lambda would be an easy way to trigger a deployment (via some SQS event) without installing the SDK onto the lambda runtime