NGINX and Node NGINX.conf

nginx.conf

# NGINX reverse proxies everything that comes to edge and either
# sends it to the edge Node server or to our API
#
# Some common problems you might encounter:
# SSL_do_handshake() failed (SSL: error:14077410:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert handshake failure) while SSL handshaking to upstream
# Could mean you're passing a request to the API without using 
#   proxy_ssl_server_name  on;
# 
# If you're getting host not found issues you may need to
#   proxy_set_header Host ${API_HOST}

http {
    resolver $RESOLVER ipv6=off;
    reset_timedout_connection on;
    keepalive_timeout 650;

    proxy_cache_path  /data/nginx/cache  levels=1:2    keys_zone=STATIC:10m
    inactive=10m  max_size=1g;
    server {
        listen 8080 default_server;

        location = /404.html {
            internal;
            root /home/app/api/assets/html/errors;
        }

        # Fast fail common errors
        location = /favicon.ico {
            return 404;
        }

        location / {
            set $upstream http://127.0.0.1:8081;
            set $px_cache STATIC;
            set $px_host $host;

            add_header X-Raisely-Cache-Status $upstream_cache_status;
            # Note: We use the header forwarded by fly instead of $scheme
            # because fly terminates SSL, so nginx always gets http requests
            #  (and no https requests)
            proxy_cache_key        $http_x_forwarded_proto$host$request_uri;
            proxy_cache_valid      200 1m;
            proxy_cache_lock       on;
            proxy_cache_background_update on;
            proxy_cache_use_stale  error timeout invalid_header updating
                                   http_500 http_502 http_503 http_504;
            proxy_intercept_errors on;
            proxy_ssl_server_name  on;

            # Configured by the if block
            proxy_pass             $upstream;
            proxy_cache            $px_cache;

            # Forward the correct hostname to the recipient
            proxy_set_header       Host $px_host;
        }
    }
}