Reverse proxy with URL rewrite issues for check_mk and nginx

Question

I'm trying to run check_mk in docker behind a proxy, but I'm having problems with not being able to set the check_mk base_url.

So check_mk is running on http://somehost:6000/sitename/check_mk/ and I need to access it from https://example.com/prefix/check_mk/

I have the following nginx setup:

location /prefix/check_mk/ { proxy_pass http://somehost:6000; rewrite ^/prefix/check_mk/(.*) /sitename/check_mk/$1 break; } 

I also have the following proxy config

proxy_http_version 1.1;

 # add server_port if we are not running on a standard port or a iptables nat to a standard port proxy_set_header Host $host; proxy_set_header X-Real-Ip $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Proto $scheme; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection $connection_upgrade; proxy_read_timeout 86400s; 

I can access check_mk for the first time at https://example.com/prefix/check_mk/index.py

However, all links in the returned page are invalid because they're not aware of the proxy. So they're things like https://example.com/checkmksitename/check_mk/dashboard.py instead of https://example.com/prefix/dashboard.py

How do I get something like this working behind a proxy when it doesn't support a base URL to build its links off ?

Answer 1

This is like WAY too late, but I stumbled upon this and ended up figuring it out. This has to be in your location block:

proxy_pass_header Authorization; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Proto $scheme; proxy_http_version 1.1; proxy_set_header Connection ""; proxy_buffering off; proxy_request_buffering off; client_max_body_size 0; proxy_read_timeout 36000s; proxy_redirect off; proxy_ssl_session_reuse off; proxy_hide_header x-frame-options; 

It may be a little more than needed, but it's what worked for me. Best of luck!