AWS Options to transfer a file out

Question

Just wondering what would be some options to transfer (sftp) a file on an S3 bucket out to an external (in this case a file server on an external datacentre)?

Answer 1

AWS offers a service called Storage Gateway this can be used to sync files between S3 and an on premise machine in different ways (cache, full copy i believe). The on premise machine can then do whatever it wants with the file(s).

Another (i.m.o. more hacked together option) is to create a lambda that copies/moves files from your S3 to an on premise by means of any protocol you want.

A third option (i.m.o. the cleanest) is to use an EFS, either write the files you need on premise directly to the EFS mount which can also be mounted on-premise. This way you have the file in 1 location but accessible from multiple locations.

Answer 2

Either external data center need to pull the file or you need to download the file manually and upload it.