After seeing some of the stuff my colleague Martin has done with Node-RED, I wanted to switch to oit, despite my KISS strategy, and Node-RED just introduces another device to mange.
Installling Node-RED
But, starting it on Docker on my Home Laptop (also used for Home Assistant on Docker and Plex Media Server):
mkdir /opt/node-red docker run -d --restart unless-stopped --network=host -v /opt/node-red:/data --name nodered nodered/node-red
And it was running on http://sparrow:1880. I saw some wierd stuff in the start, until i pressed "Deploy" the first time, after that every thing has just bee working.
NR has (as far as I know currently, any users or admin/management in front of it by default, and I wanted to be able to use it from pretty much everywhere... so I created a dual stack of Reverse Proxies:
Setting the browser to http://nodered.mos-eisley.dk it hits my Confluence Server (in a Datacenter) and the Apache2 on it proxies it to http://cantina,mos-eisley.dk:1890 (Home laptop), and the Apache2 on it proxies it to sparrow:1880 (the Docker container on the Home Laptop)
On both Apache2 I have IP Restrictions:
<VirtualHost nodered.mos-eisley.dk:80> ServerName nodered.mos-eisley.dk LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-agent}i\"" combined ErrorLog ${APACHE_LOG_DIR}/nodered.mos-eisley.dk-error.log CustomLog ${APACHE_LOG_DIR}/nodered.mos-eisley.dk-access.log combined RewriteEngine on RewriteCond %{HTTP:Upgrade} ^WebSocket$ [NC] RewriteCond %{HTTP:Connection} Upgrade$ [NC] RewriteRule .*/(.*) "ws://cantina.mos-eisley.dk:1890/$1" [P,L] ProxyPreserveHost On ProxyRequests Off ProxyPass / http://cantina.mos-eisley.dk:1890/ ProxyPassReverse / http://cantina.mos-eisley.dk:1890/ <Proxy *> Order deny,allow Deny from all Allow from xxx.xxx.xxx.xxx Allow from yyy.yyy.yyy.yyy </Proxy> </VirtualHost>
<VirtualHost *:1890> ServerAdmin webmaster@localhost RewriteEngine on RewriteCond %{HTTP:Upgrade} ^WebSocket$ [NC] RewriteCond %{HTTP:Connection} Upgrade$ [NC] RewriteRule .*/(.*) "ws://localhost:1880/$1" [P,L] ProxyPreserveHost On ProxyRequests Off ProxyPass / http://localhost:1880/ ProxyPassReverse / http://localhost:1880/ <Proxy *> Order deny,allow Deny from all Allow from 77.243.52.144 # www.mos-eisley.dk Allow from 10 # Local Lan </Proxy> </VirtualHost>
With this setup I can use it from xxx.xxx.xxx.xxx and yyy.yyy.yyy.yyy that represents some well known adresses like work and fiber.
Adding Node-RED To Home Assistant
In Node-RED, under Settings → Pallette - Add "node-red-contrib-home-assistant-websocket":
In Home Assistant, Add "Node-RED Companion":