nginx make node-red Lost connection to server but deploy works

Question

Greetings I am configuring a node-red server and after apply Nginx redirect I got the following issue.

Image of node-red trying to reconnect and still deploying

After Using Nginx to redrect subdomain node-red.domain.com to localhost:1880

Nginx redirect config:

server {
        listen 80;
        server_name sub1.domain.com;

        location / {
                proxy_pass "https://127.0.0.1:8080";
        }
}
server {
        listen 80;
        server_name sub2.domain.com;

        location / {
                proxy_pass "https://127.0.0.1:8080";
        }
}

Please anyone can help me on that?

score 10 · Accepted Answer · answered Jun 07 '18 at 13:19

You need to enable WebSocket proxying to allow the editor to connect back to the runtime.

To do that you need to add some additional options to your location configs:

    location / {
        proxy_pass "https://127.0.0.1:8080";
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
    }

For more information about NGINX and WebSockets, refer to the documentation here.

score 2 · Answer 2 · answered Nov 17 '19 at 15:27

2

The same works in Synology NAS:

Here under Application Portal => Create a reverse Proxy for http://*:1880 or https://*1880

And add in the register Customer Header: Create WebSocket

This will create the following two settings: Upgrade $http_upgrade; Connection "upgrade";

And voila no connection lost from inside of the LAN and also from outside.

answered Nov 17 '19 at 15:27

user12387227

31
1

3

Does not look like a relevant answer at all. – Tanveer Badar Nov 17 '19 at 16:15
2

It's absolutely relevant, although a particular case where the docker container is hosted on a Synology NAS. Still useful for some of us. – nchokoev Oct 28 '21 at 10:23
Looks like he is solving the same issue but with a proxy other than NginX. While not useful to NginX might be helpful to someone else. Thanks for contributing to the community. – Alexandre Pelagaggi Jun 14 '23 at 12:52

nginx make node-red Lost connection to server but deploy works

2 Answers2