Why did my deployment fail at the health check step?
Your application must expose an HTTP GET route that returns a success status — /health, /status, or even / all work. Forte auto-detects the port your app listens on and discovers the health check path; if no route responds successfully, the deployment can't complete.
If you've changed your app's port or layout since the first deploy, reset the health check configuration in the service's Advanced Settings so Forte re-detects it.