server
    {
        listen 80;
        #listen [::]:80;
        server_name example.com www.example.com;

        #如果需要http 301跳转到 https 需要将下面行前面的 # 注释去掉，并重载nginx
        #return 301 https://$host$request_uri;

        location / {
            proxy_pass http://127.0.0.1:3000;
            proxy_http_version    1.1;
            proxy_cache_bypass    $http_upgrade;
            proxy_set_header Upgrade            $http_upgrade;
            proxy_set_header Connection         "upgrade";
            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;
            proxy_set_header X-Forwarded-Host   $host;
            proxy_set_header X-Forwarded-Port   $server_port;
        }

        access_log off;
    }

server
    {
        listen 443 ssl http2;
        #listen [::]:443 ssl http2;
        server_name example.com www.example.com;

        ssl_certificate /usr/local/nginx/conf/ssl/example.com.crt;
        ssl_certificate_key /usr/local/nginx/conf/ssl/example.com.key;
        ssl_session_timeout 5m;
        ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;
        ssl_prefer_server_ciphers on;
        ssl_ciphers "TLS13-AES-256-GCM-SHA384:TLS13-CHACHA20-POLY1305-SHA256:TLS13-AES-128-GCM-SHA256:TLS13-AES-128-CCM-8-SHA256:TLS13-AES-128-CCM-SHA256:EECDH+CHACHA20:EECDH+CHACHA20-draft:EECDH+AES128:RSA+AES128:EECDH+AES256:RSA+AES256:EECDH+3DES:RSA+3DES:!MD5";
        ssl_session_cache builtin:1000 shared:SSL:10m;
        # openssl dhparam -out /usr/local/nginx/conf/ssl/dhparam.pem 2048
        ssl_dhparam /usr/local/nginx/conf/ssl/dhparam.pem;

        location / {
            proxy_pass http://127.0.0.1:3000;
            proxy_http_version    1.1;
            proxy_cache_bypass    $http_upgrade;
            proxy_set_header Upgrade            $http_upgrade;
            proxy_set_header Connection         "upgrade";
            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;
            proxy_set_header X-Forwarded-Host   $host;
            proxy_set_header X-Forwarded-Port   $server_port;
        }

        access_log off;
    }
