HI there,
I have a FME Flow 2026.1 deployment in a fault tolerant configuration with ALB and SSL enabled in AWS.
The HTTPS traffic on port 443 to the ALB is working fine going to core and running jobs on the engines.
I’m struggling in finding the documentation on the ALB setup for the websocket and setting the ‘Internal WebSocket URL’ in the system configuration section in the WebUI so I can use notifications/topics in my automations as triggers.
I’m basically looking for ALB configuration. So, my questions are:
Does the ALB require port 7078 listener and then to target the EC2 on port 7078?
Which EC2 should be in the target group? is it core or engine?
What would be the health check url to the EC2 to determine the EC2 can receive the websocket traffic?
What url would you set for the ‘Internal WebSocket URL’ in the config settings based on above?
At the moment, I have looked at safe github repo for AWS IaC which is very generic and the ALB fails on the health check to the core EC2
If someone could point me in the right direction, it would be greatly appreciated. Thanks

