Redirect /openvas/ to OpenVAS Scanner with NGINX - nginx

Question

I'm trying to make my OpenVAS Scanner available via path in nginx.
So I tried
location /openvas/ {
proxy_pass http://127.0.0.1:8080/;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;}
thats not working, it gives a blank page
When I change it to root
location / {
proxy_pass http://127.0.0.1:8080/;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme; }
its working
when checking nginx logfiles it seems it gets the first page, but not the other files requested
"GET /openvas/ HTTP/2.0" 200
"GET /config.js HTTP/2.0" 404

Answer 1

I have checked the docker container image and just proxying the traffic trough NGINX will not work. You have to set the Public Hostname for your OpenVAS instance as well to tell OpenVAS how to server static files and build directories in the frontend.
I have found this on docker hub.
docker run -d -p 443:443 -e PUBLIC_HOSTNAME=myopenvas.example.org --name openvas mikesplain/openvas
In your case you should set the PUBLIC_HOSTNAME to example.com/openvas/. This will tell OpenVAS public domain used to access the application.
Your NGINX configuration will be
location /openvas/ {
proxy_pass http://127.0.0.1:8080/;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}