Centos 7 Samba php:apache Permission Denied when moving file with Docker container after moving to :z volume from samba share
Solution 1:
You moved files (without the -Z option) instead of copying them, so they carry their original SELinux contexts instead of the appropriate contexts for their destination.
When you created a new file, it had the correct SELinux context already.
You can use restorecon to fix the SELinux contexts on the affected files, for example:
restorecon -rv <directory>