Method read_file

qa/tasks/cephfs/mount.py:759–777

Return the data from the file on given path.

(self, path, sudo=False, offset=None, length=None)

            self.run_shell(args=f'chmod {perms} {path}')

    def read_file(self, path, sudo=False, offset=None, length=None):
        """
        Return the data from the file on given path.
        """
        if path.find(self.hostfs_mntpt) == -1:
            path = os.path.join(self.hostfs_mntpt, path)

        args = []
        if sudo:
            args.append('sudo')
        args.append('dd')
        args.append(f'if={path}')
        args.append('bs=1')
        if offset:
            args.append(f'skip={offset}')
        if length:
            args.append(f'count={length}')

        return self.run_shell(args=args, omit_sudo=False).stdout.getvalue().strip()

    def create_destroy(self):
        assert(self.is_mounted())