TL;DR summary: NXLog won't load my certificate - why?
I've set up an NXlog CE server to act as an encrypted entrypoint for a Graylog server. After creating a self-signed certificate and adding it to the configuration, I get an unexpected error in the log when NXlogs starts up.
2015-07-10 06:49:22 INFO reloading configuration and restarting modules
2015-07-10 06:49:22 ERROR SSL error, Failed to open certfile: "/certificates/client.pem";No such file or directory
2015-07-10 06:49:22 INFO configuration reloaded successfully.
I assumed it might be a file rights issue, but looking at the files, it seems like the rights are actually a little too loose for comfort:
root@e757dae37501:/# ll /certificates/
drwxr-xr-x 2 nxlog nxlog 4096 Jul 10 06:32 ./
drwxr-xr-x 49 root root 4096 Jul 10 06:32 ../
-rw-r--r-- 1 nxlog nxlog 1387 Jul 9 15:51 ca.pem
-rw-r--r-- 1 nxlog nxlog 887 Jul 9 15:54 client.key
-rw-r--r-- 1 nxlog nxlog 1001 Jul 9 15:55 client.pem
My NXlog configuration looks like this:
I've tried looking at the source code for the SSL module, but it looks like the line that fails is not related to validation but simple file access. I have no idea how to proceed. Suggestions?