upstream trigger-ci { server 127.0.0.1:8555; } server { listen 80; server_name mkdocs-server; root /site; error_page 404 /404.html; location /trigger-ci.json { proxy_pass http://trigger-ci; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Host $host; proxy_redirect off; } }