How to configure IPython behind nginx in a subpath?

Question

I've got nginx running handling all SSL stuff and already proxying / to a Redmine instance and /ci to a Jenkins instance.

Now I want to serve an IPython instance on /ipython through that very same nginx.

In nginx.conf I've added:

http {
    ...
    upstream ipython_server {
        server 127.0.0.1:5001;
    }

    server {
        listen 443 ssl default_server;
        ... # all SSL related stuff and the other proxy configs (Redmine+Jenkins)

        location /ipython {
            proxy_pass http://ipython_server;
        }
    }
}

In my .ipython/profile_nbserver/ipython_notebook_config.py I've got:

c.NotebookApp.base_project_url = '/ipython/'
c.NotebookApp.base_kernel_url = '/ipython/'
c.NotebookApp.port = 5001
c.NotebookApp.trust_xheaders = True
c.NotebookApp.webapp_settings = {'static_url_prefix': '/ipython/static/'}

Pointing my browser to https://myserver/ipython gives me the usual index page of all notebooks in the directory I launched IPython.
However, when I try to open one of the existing notebooks or create a new one, I'm getting the error:

WebSocket connection failed: A WebSocket connection to could not be established. You will NOT be able to run code. Check your network connection or notebook server configuration.

I've tried the same setup with the current stable (1.2.1, via pypi) and development (Git checkout of master) version of IPython.
I also tried adjusting the nginx config according to nginx reverse proxy websockets with no avail.
Due to an enforced policy I'm not able to allow connections to the server on other ports than 443.

Does anybody have IPython running behind an nginx?

I just had the exact same problem on my Ubuntu server. I was running Ubuntu 12.04 and the version of NGINX was 1.1.19. Looking around it seemed like the websockets proxy forwarding didn't get sorted out until 1.3.something in NGINX. So I followed this guide: http://usefulmix.com/install-upgrade-to-latest-nginx-without-compiling-from-source/ to get NGINX upgraded (in my case I'm now running 1.5.13). Everything worked perfectly afterwards. — 8one6, Apr 17 '14 at 21:41

score 30 · Accepted Answer · edited Nov 13 '15 at 23:22

30

I had the same problem. I updated nginx up to the current version (1.6.0). It seems to be working now.

Server config:

location /ipython {
    proxy_pass http://ipython_server;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
    proxy_set_header Origin "";
}

See: http://nginx.org/en/docs/http/websocket.html

edited Nov 13 '15 at 23:22

Community

1
1

answered May 28 '14 at 13:03

iroln

1,116
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20

I had to add `proxy_set_header Origin "";` to make this work. The Tornado server doesn't accept connections otherwise since the origin check doesn't pass. – user1496984 Aug 18 '14 at 17:51
^^^ this comment is crucial! – mwjackson Nov 26 '14 at 16:45
1

So how I do I handle the case where I need the `Origin` header passed through since I'm doing cross-domain calls? – bluesmoon Mar 15 '16 at 17:42
I don't know why, but this worked for me as well. Everything in my config can be followed from the docs but I was still getting 404 when accessing the notebook until I made the changes to my nginx config – lollerskates Sep 15 '16 at 23:21
still valid today – prusswan Sep 13 '18 at 21:46

How to configure IPython behind nginx in a subpath?

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