NGINX Avoid Proxy Pass Duplication for Multiple Locations

Question

I'm writing a reverse proxy for a site.

It work's fine but i'd like to add/modify headers for assets.

If i remove the proxy pass from each location block it stops proxying for the asset blocks, i foolishly assumed that the / root location block would take precedence and apply further down.

I've used try_files $uri @proxy and created a location @proxy block, but it feels ugly with NGINX looking for the files that will never be locally.

I'm asking how i can avoid duplication like this:

    location / {
        proxy_pass https://web1.local;
        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;
    }

    location ~* .(?:jpg|jpeg|gif|png|ico|cur|gz|svg|svgz|mp4|ogg|ogv|webm|htc|ttf|otf|woff|woff2|eot)$ {
        proxy_pass https://web1.local;
        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;
        expires max;
        access_log off;
        add_header Cache-Control "public";
        add_header X-Asset "Yes";
    }

    location ~* .(?:css|js)$ {
        proxy_pass https://web1.local;
        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;
        expires 1M;
        access_log off;
        add_header Cache-Control "public";
        add_header X-Asset "Yes";
    }

Answer 1

等待大神解答