nginx -t before applying changes to nginx.conf

[teyc]

Is your feature request related to a problem? Please describe. I really like caprover! Getting nginx configuration right is somewhat of a black art for inexperienced people like me, and wedging the caprover UI is not the same level of user friendliness that caprover is known for.

Describe the solution you'd like Ideally before applying the changes, I'd like caprover to nginx -t and see if there are any potential problems with the configuration.

[Alfagun74]

definitely a good one!

[thgh]

I had a custom nginx config referencing a srv-captain--api URL which broke after renaming the app. So ideally it also runs nginx -t before changing the name of an app.