From Abhijit - Esri

• Setup an Image service with RDS as back end.
• The image service is pointing to the mosaic dataset sitting on the RDS.
• Set up a GP service which is secured one.
• This GP service takes the input MRF string and performs the Add Raster operation on the mosaic directly

Daily process

• A new file arrives at the specified S3 bucket,
• A Lambda process kicks in, which connects to the GP service
• This GP service takes an input as the MRF string and executes its. Since this is a rest call, it does not need any other dependency.
• The newly added data gets reflected can be done using the refresh service option (see https://developers.arcgis.com/rest/services-reference/refreshservice.htm).

There is no such documentation on this, but we have used this a few times before.

Other option is to have a separate ec2 machine which does the add raster operation. We can talk about all these options in the call sometime.

Regarding the update for the issue reported, I have sent a reply to a different thread. I have also updated the Git repository with the changes.