Unable to set "base" URI path for use behing a reverse proxy

[jerome83136]

Hello,

I just pulled the latest docker image and I'm unable to configure the "base path" of the application in order to use it behind a reverse proxy.

I modified this file: config/app.js and changed this: exports.base = '/zwave/';

Then restarted the docker.

Then trying to access the app: http://[IP]:8091/zwave

I get these URI generated on these HTTP status code on my browser:

http://[IP]:8091/zwave --> HTTP/200
http://[IP]:8091/zwave/static/css/app.e7f63f8bf06c7dd2f2ba.css --> HTTP/404

It seems the config works because URIs are generated with "/zwave"; but static elements are not reachable on the new path. Did I miss something ?

When manually changing the static URI; it works: http://[IP]:8091/static/css/app.e7f63f8bf06c7dd2f2ba.css --> HTTP/200

I was also unable to apply the documented procedure here: https://zwave-js.github.io/zwavejs2mqtt/#/usage/reverse-proxy?id=using-the-configuration

Thank you for your help Best regards

[robertsLando]

Did you also tried the http header way? what's your reverse proxy configuration?

[jerome83136]

Hello, No I didn't. I'm using Traefik as a reverse proxy so I have to figure out how to implement this method on it.

Do you think I should give up with the "path" method?

(I think the possibility to set the path thought a docker environment variable could help a lot of people implementing this easier 😉)

Le lun. 12 sept. 2022 à 09:44, Daniel Lando @.***> a écrit :

Did you also tried the http header way?

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[jerome83136]

Here is my Traefik configuration (reverse proxy)

accessLog: {}
log:
  level: INFO
providers:
  file:
    filename: /etc/traefik/traefik.yml
    watch: true
api:
  dashboard: true
  insecure: true
entryPoints:
  web:
    address: ":80"
http:
  routers:
    api:
      rule: Host("domotique.maison.lan")
      service: api@internal
    ##zwave2mqtt
    zwave2mqtt:
      rule: Host("domotique.maison.lan") && PathPrefix("/zwave/")
      service: zwave2mqtt
      priority: 1000
  services:
   zwave2mqtt:
    loadBalancer:
     servers:
      - url: "http://192.168.1.253:8091"

But I don't think it will be usefull here as the path is not working by connecting directly to the zwave2mqtt docker instance (http://[IP]:8091/zwave)

I think the static pages are not inheriting the "path" configuration. What do you think ?

Best regards

[robertsLando]

Could you set custom headers? You should add this header:

X-External-Path /zwave;

[robertsLando]

Just commited a change to add BASE_PATH env var

[jerome83136]

Hello,

Just tried the header way with Traefik; here is the config:

http:
  routers:
    ##zwave2mqtt
    zwave2mqtt:
      rule: Host("domotique.maison.lan") && PathPrefix("/zwave/")
      service: zwave2mqtt
      priority: 1000
      middlewares:
        - zwave2mqtt
  middlewares:
    zwave2mqtt:
      headers:
        customRequestHeaders:
          X-External-Path: "/zwave"
        customResponseHeaders:
          X-External-Path: "/zwave"
  services:
   zwave2mqtt:
    loadBalancer:
     servers:
      - url: "http://ZWAVE2MQTTIP:8091"

Sadly, it still doesn't work.

The "X-External-Path" header is set with the value "/zwave" and when reaching zwavemqtt trought the reverse proxy; the "root" page is accesible with the "/zwave" URI The static pages inherited the "/zwave" URI; but they are still unreachable (404)

This is the same behaviour than with the "path" config option.

Will try with the "BASE_PATH" environment variable when it is released.

Best regards

[tjmv]

I encountered the same issues when I set up the service today and happened to see the commit mentioning this issue. The BASE_PATH environment variable alone is not enough and has the same effect as the header: This adds the prefix, but the server is not aware of it and expects everything to be served from the root. However, you can work around it by first adding the path in the application and then strip it in the proxy.

Using Traefik, you need two middlewares or one and the BASE_PATH variable to get it working right now:

zwave2mqtt-inject-basepath:
  headers:
    customRequestHeaders:
      X-External-Path: "/zwave/"
zwave2mqtt-strip-basepath:
  stripprefix:
    prefixes: "/zwave"

[jerome83136]

Oh, great tip Will try it asap Thank you !

Le jeu. 15 sept. 2022 à 20:04, tjmv @.***> a écrit :

I encountered the same issues when I set up the service today and happened to see the commit mentioning this issue. The BASE_PATH environment variable alone is not enough and has the same effect as the header: This adds the prefix, but the server is not aware of it and expects everything to be served from the root. However, you can work around it by first adding the path in the application and then strip it in the proxy.

Using Traefik, you need two middlewares or one and the BASE_PATH variable to get it working right now:

zwave2mqtt-inject-basepath: headers: customRequestHeaders: X-External-Path: "/zwave/" zwave2mqtt-strip-basepath: stripprefix: prefixes: "/zwave"

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[jerome83136]

it worked with the @tjmv solution Thanks ! Regards