getting permission denied for user even though I should have read access.

permission denied in docker instance

  postgres@e000d37cf793:/$ groups
  postgres ssl-cert
  
  postgres@e000d37cf793:/$ ls -la /etc/ssl/
  total 28
  drwxr-xr-x  7 root root      4096 Feb 10 20:40 .
  drwxr-xr-x 95 root root      4096 Feb 10 20:44 ..
  drwxr-xr-x  2 root root      4096 Feb 10 20:40 certs
  -rw-r--r--  1 root root     10835 Jan  8 20:48 openssl.cnf
  drwxr-x---  2 root ssl-cert  4096 Feb 10 20:40 private
  
  postgres@e000d37cf793:/$ ls -la /etc/ssl/private/
  ls: cannot open directory /etc/ssl/private/: Permission denied

1. I am a member of the 'ssl-cert' group
2. The ssl-cert group has read and directory listing access of /etc/ssl/private
3. Permission denied when I try to list the contents of the /etc/ssl/private directly.

Any idea why? What I could try? I've tried (just for kicks) chmod 777 and it still doesn't let me access it.

if anyone finds this someday may they know that I never did figure out why the file was inaccessible but what I did was copy the file to another location and assign the same permissions to it and told postgresql where it was located in the conf file.

I am having this same issue. Glad I found this! It's been driving me crazy. Seems to only be in the docker image.