Hi all, I'm looking to get started with Prefect. I've installed Prefect Server on an EC2 instance in a private subnet which I can access via a bastion server. I've successfully started the server and can see it running. I'm trying to access the ui by using a putty tunnel to forward a port on my laptop, via the bastion server, to the <machine with prefect>:8080. I configured firefox to use SOCKS5 with localhost and the port forwarded by putty. Unfortunately I'm not getting the ui to load up. It's a difficult one to debug as there's lots of components involved. Has anyone any experience doing something like this? Any tips on prefect configuration that might be pertinent?

Did you use helm or just the

prefect server start

?

I'm not using helm no

Did you start with the

--expose

flag? The warning seen here a bit below

yes tried with and without the --expose flag

That would be the only relevant config. Kinda hard to way what is going on. If you could try accessing the UI or graphQL endpoint from the same EC2 just to confirm it’s working, that would help. If it is, then it’s really all networking and that’s a bit too deep for us to dive into

ok yeah I can see the heartbeat ticking away getting status 200 responses on the EC2 so looks like it is working. I was thinking there might be something in the config.toml to adjust.

Other than pointing the UI to the graphQL endpoint, nothing else I think

HI @David Mannion I'm having a similar issue at the moment. I can actually see the UI, but can't then connect to apollo when I'm following the

/getting-started

route. Have you managed to make any further progress?

Hi Greg, no not yet. I'm waiting on port 8080 to be opened on the EC2 instance so still haven't reached the ui.

Ah ok good luck! I'll keep trying to figure this out so give me a shout if you run into similar problems!

will do thanks!

@Kevin Kho hoping you could help here - as well as opening port 8080 am I right in thinking we also need to open 4200 so we can send requests to the graphql service separately from the ui?

thanks for the heads up, will add 4200 to my ticket

Yes. From this blog:

You'll also want to add firewall rules for the GraphQL server (port 4200) and the UI (port 8080), so your firewall rules page will look something like...