cannot run node-red-docker behind nginx docker with virtual directory.

[huangchinlin]

What are the steps to reproduce?

install:

1. ubuntu 20.04 desktop
2. docker-ce 19.03.12
3. node-red 1.0.6 (from latest docker)
4. nginx docker
5. launch a virtual directory named "form" and set proxy_pass to node-red container in nginx conf file.

What happens?

proxy_pass may work, but some static reference library cannot be located correctly.

I had tried to modify httpAdminRoot, httpNodeRoot, httpRoot, httpStatic in settings.js, seems not the correct setting item for this case.

nginx setting

upstream form {
  server form:1880;  <-- node-red container
}

server {
...
  location ~ ^/form(/?)(.*) {
    proxy_pass http://form/$2;
    proxy_http_version 1.1;
    proxy_set_header Host $http_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 Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
  }

  location / {
    ...  <- run other pages here.
  }
}

[CTGControls]

This is how I am do it. You will need to setup DNS for this to work

worker_processes 4;
events { worker_connections 1024; }
http {
    sendfile on;
    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-Host $server_name;

    map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }


		server {
        listen 80;
        listen [::]:80;
        server_name www.nodered.SomeDomain.com;
        location / {
            resolver 127.0.0.11 valid=10s;
            set $upstreamName node_red:1880;
            proxy_pass         http://$upstreamName;
            proxy_redirect     off;
			proxy_http_version 1.1;
			proxy_set_header Upgrade $http_upgrade;
			proxy_set_header Connection "upgrade";
        }
    }
}

Here Is my docker compose file:

################################################################################
# Node-RED Stack or Compose
################################################################################
# docker stack deploy node-red --compose-file docker-compose-node-red.yml
# docker-compose -f docker-compose-node-red.yml -p myNoderedProject up
################################################################################

version: '3.7'
services:
  node_red:
    image: nodered/node-red:latest-12
    restart: always
    environment:
      - TZ=	America/Chicago
    volumes:
      - node_red_data:/data
    ports:
      - 1880:1880
      - 55388:55388
      - 502:502
    stop_grace_period: 2m
    deploy:
      replicas: 1
      update_config:
        parallelism: 1
        delay: 1m
      restart_policy:
        condition: on-failure
      placement:
        constraints: [node.role == manager]
    depends_on:
      - timescaledb
    links:
      - timescaledb


networks:
  default:
    external:
      name: backend_network

volumes:
  node_red_data:
    external:
      name: node_red_data

[s4ke]

With some rewrite rules, you can achieve this pretty nicely (slightly modified from what we are running in production):

    location /nodered/comms {
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        rewrite ^/nodered(.*)$ $1 break;
        proxy_pass_header               Set-Cookie;
        proxy_set_header                X-Real-IP $remote_addr;
        proxy_set_header                Host $http_host;
        proxy_set_header                X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header                X-NginX-Proxy true;
        proxy_pass_request_headers      on;
        proxy_set_header   X-Forwarded-For $remote_addr;
        proxy_set_header   X-Forwarded-Proto $scheme;
        
        resolver 127.0.0.11 ipv6=off;

        proxy_pass         $noderedproxy;
    }

    location /nodered {
        rewrite ^(.*[^/])$ $1/ permanent;
    }

    location /nodered/ {
        rewrite ^/nodered(.*)$ $1 break;
        proxy_pass_header               Set-Cookie;
        proxy_set_header                X-Real-IP $remote_addr;
        proxy_set_header                Host $http_host;
        proxy_set_header                X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header                X-NginX-Proxy true;
        proxy_pass_request_headers      on;
        proxy_set_header   X-Forwarded-For $remote_addr;
        proxy_set_header   X-Forwarded-Proto $scheme;
        
        resolver 127.0.0.11 ipv6=off;

        proxy_pass         $noderedproxy;
    }