--umask sets the umask inside the container
Defaults to 0022
Co-authored-by: Daniel J Walsh <dwalsh@redhat.com>
Signed-off-by: Ashley Cui <acui@redhat.com>
--tz flag sets timezone inside container
Can be set to IANA timezone as well as `local` to match host machine
Signed-off-by: Ashley Cui <acui@redhat.com>