TLDR: How to share cookies between subdomains for a backend application sever that I cannot "configure" using nginx as a proxy - some magical combination of proxy_*?
A tornado web server is running on "127.0.0.1:9999/ipython" that I cannot configure (it's running as part of an ipython notebook server). I'm using nginx to proxy from "www.mysite.com" to 127.0.0.1:9999 successfully (http traffic at least).
However, part of the backend application requires Websockets. Because I am using CloudFlare, I have to use a separate domain for Websockets ("Websockets are currently only available for Enterprise customers ... All other customers ... should create a subdomain for Websockets in their CloudFlare DNS and disable the CloudFlare proxy"). I'm using "ws.mysite.com".
When a user logs in at "https :// www.mysite.com", a cookie is set by the tornado web server for "www.mysite.com" (I can't seem to configure it, otherwise I would just set it to ".mysite.com"). When the websocket part of the application kicks in, it sends a request to "wss :// ws.mysite.com", but fails to authenticate because the cookie is set for a different domain("www.mysite.com").
Is it possible for nginx to "spoof" the domain so the tornado webserver registers it for ".mysite.com"? proxy_cookie_domain doesn't seem to work as I'd expect... Should I hard code "proxy_set_header Host"?
I was thinking a nginx conf similar to....
upstream ipython_server {
server 127.0.0.1:8888;
}
server {
listen 443;
server_name www.mysite.com;
ssl_certificate cert.crt;
ssl_certificate_key cert.key;
ssl on;
# **** THIS DOESN'T WORK ??? ****
proxy_cookie_domain www.mysite.com .mysite.com;
location /ipython/static {
proxy_pass https://ipython_server$request_uri;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
location /ipython/api/sessions {
proxy_pass https://ipython_server$request_uri;
proxy_set_header Host $host;
proxy_set_header Origin "";
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
location /ipython {
proxy_pass https://ipython_server$request_uri;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
location / {
try_files $uri $uri/ =404;
}
}
server {
listen 443;
server_name ws.azampagl.com;
ssl_certificate cert.crt;
ssl_certificate_key cert.key;
ssl on;
# **** THIS DOESN'T WORK ??? ****
proxy_cookie_domain ws.mysite.com .mysite.com;
# This is the websocket location
location /ipython/api/kernels/ {
proxy_pass https://ipython_server$request_uri;
proxy_redirect off;
proxy_http_version 1.1;
chunked_transfer_encoding off;
proxy_buffering off;
proxy_read_timeout 86400;
proxy_set_header Host $host;
proxy_set_header Origin "";
proxy_set_header Upgrade websocket;
proxy_set_header Connection "upgrade";
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-NginX-Proxy true;
proxy_set_header X-Forwarded-Proto $scheme;
}
}
I've been looking in the nginx lua module? It looks like you can set cookie domains, but it looks hackish...
Thanks greatly in advance for your assistance!
(Side note: I do technically have access to the tornado configuration, but there is zero documentation on how to set the "cookie domain" for the server. i.e.
c.NotebookApp.tornado_settings = {'cookie_domain????':'.mysite.com'}
)