How do file and dir permissions look like depending on how we layout our Dockerfile?
RUN yum install
first, COPY contrib
next (#57):
$ ls -la /var/lib/pgsql/
total 48
drwxrwxrwx. 4 postgres postgres 4096 Aug 27 12:35 .
drwxr-xr-x. 12 root root 4096 Aug 26 14:43 ..
drwxrwxrwx. 3 root root 4096 Aug 26 14:43 .pki