The issue is that with generic Kubeflow I could control how the secret stored in Kubernetes maps through with my S3 client--not so much with Kedro where it is mediated by kedro componentry. That said, it does look like the

kfp.aws

functionality can be used to access a Minio S3 endpoint and that

kfp.aws.use_aws_secret

map the components of the existing Minio secret through into typical AWS credential environment variables... so, I think this can actually work.