UMASK setting seems to be ignored.

[gderf]

The system UMASK is set to 022 and when I create directories and files in the shell as my ordinary unprivileged user their permissions are properly set as 755 and 644 as expected.

In my docker yaml file I have:

environment:
  - PUID=1001
  - PGID=100
  - UMASK=022
  

In the container log file I see:

05/06/2023 3:21:43 PM 2023-05-06 19:21:43.232074 [INFO] UMASK defined as '022'

However directories and files being created by the container are set to 775 and 664. This corresponds to a UMASK of 002, which is the default for the image if left unset.