Reverse proxy with authentication on apache2

An apache reverse proxy for pellmon on ip 192.168.1.101:8081, with basic authentication added can look something like this:

<Location /pellmon>
  ProxyPass  http://192.168.1.101:8081/pellmon
  ProxyPassReverse http://192.168.1.101:8081/pellmon
  AuthType Basic
  AuthName "PellMon"
  AuthUserFile /etc/pellmon/pwd
  AuthBasicProvider file
  require valid-user
</Location>

<Location /pellmon/websocket>
  require all granted
  ProxyPass  ws://192.168.1.101:8081/pellmon/websocket
  ProxyPassReverse  ws://192.168.1.101:8081/pellmon/websocket
</Location>

You need to have the apache modules proxy_http and proxy_wstunnel enabled.

In this configuration PellMon is configured with a webroot of /pellmon to allow for other sites on apache.

[conf]
port = 8081
webroot = /pellmon

Create the password file (AuthUserFile) with htpasswd

An exeption to the authentication is added for the websocket path because some browsers doesn't handle authentication on websockets.

(This works for me on apache 2.4.7, the proxy_wstunnel module is only available on quite recent apache versions)