XNAT JupyterHub behind Apache reverse proxy?

[Nadya Shusharina]

Hi,

I am running XNAT behind an Apache proxy that provides https encryption. JupyterHub opens a notebook window but cannot launch any kernels or open terminals. I do not have other issues with XNAT behind this proxy.  On a local machine without any proxies, everything works as expected.

Is a special configuration required for JupyterHub in this setup? 

Thank you,

Nadya

[Andrew Lassiter]

Hi Nadya,

We've configured HAProxy with https but I have not tried Apache.

Here's the JupyterHub documentation for Apache with SSL:

https://jupyterhub.readthedocs.io/en/stable/reference/config-proxy.html#apache

I think you'll need to add an additional <Location "jupyterhub"> to your Apache config.

Best,

Andy

[Nadya Shusharina]

Thanks. I am running dockerized XNAT/JupyterHub, which already includes nginx to take care of the routing between XNAT and JupyterHub including port 8000.

The following Apache2 reverse https proxy configuration works with dockerized XNAT/JupyterHub behind Apache2:

ProxyPreserveHost On
RewriteEngine On
ProxyRequests off
ProxyPass / http://127.0.0.1:80/
ProxyPassReverse / http://127.0.0.1:80/
RequestHeader set X-Forwarded-Protocol "https"
Header edit Location ^http://(.*)$ https://$1
RewriteCond %{HTTP:Connection} Upgrade [NC]
RewriteCond %{HTTP:Upgrade} websocket [NC]
RewriteRule /jupyterhub/(.*) ws://127.0.0.1/jupyterhub/$1 [P,L]