Usage:
          containment run

def run(self):
        """
        Usage:
          containment run
        """
        run_command = (
            settings.project_customization.runfile.read_text().split()
        )
        chmod_string = (
            "chmod +x "
            + settings.project_customization.runfile.absolute().as_posix()
        )
        subprocess.run(chmod_string.split())
        subprocess.run(
            run_command, stdin=sys.stdin, stdout=sys.stdout, stderr=sys.stderr
        )