Question: Communication between AWS Commercial and Gov Cloud
Hey!
Curious if anyone tried to communicate between GovCloud and Commercial AWS?
I am aware they are separated by design.
I have a task to try to have a ECS make an api call a private api gateway on GovCloud. Right now the idea is to use private API gateway on GovCloud and a VPC Endpoint on the Commercial side. I don’t think this will work..
I’m certain that this cannot be done without a VPN or having the GovCloud api be public facing, but as I’m not by any means an expert in AWS networking I am curious if anyone has any thoughts?
Obliviously it would depend on the API you need. For example if ECS has to send email via a SMTP server inside the private network (to reach domain mail box or sth). It should be possible to open a public facing (authentication required) API at ECS to return a list of emails it wants to send. A service inside the private network can then poll this API (E.g. once per 2 minutes) to retrieve any new emails to be sent. This should work if private -> outbound access -> AWS is allowed.
Yeah that’s what I’ve been thinking too and I tried to convey that to the team. However they are still trying to move forward. The only I believe it’s possible is with public endpoints or a VPN. I appreciate the response!
Please keep in mind I haven't done any work on either for a few years now. I would definitely check if something is possible today... But with little hope. AWS support should be able to give you more infos on this connection (or lack thereof).
I haven’t worked directly on gov cloud but I’m familiar with its design. The two systems are completely isolated from each other with internet in between. I know you can port forward in AWS so a solution would be to spin up a VPN server in AWS and connect to it from gov cloud.