Coverage for manila/privsep/os.py: 42%

1# Copyright 2021 Red Hat, Inc 

2# 

3# Licensed under the Apache License, Version 2.0 (the "License"); you may 

4# not use this file except in compliance with the License. You may obtain 

5# a copy of the License at 

6# 

7# http://www.apache.org/licenses/LICENSE-2.0 

8# 

9# Unless required by applicable law or agreed to in writing, software 

10# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 

11# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 

12# License for the specific language governing permissions and limitations 

13# under the License. 

14 

15""" 

16Helpers for os basic commands 

17""" 

18 

19from oslo_concurrency import processutils 

20 

21from manila import exception 

22 

23import manila.privsep 

24 

25 

26@manila.privsep.sys_admin_pctxt.entrypoint 

27def rmdir(dir_path): 

28 processutils.execute('rmdir', dir_path) 

29 

30 

31@manila.privsep.sys_admin_pctxt.entrypoint 

32def mkdir(dir_path): 

33 processutils.execute('mkdir', dir_path) 

34 

35 

36@manila.privsep.sys_admin_pctxt.entrypoint 

37def recursive_forced_rm(dir_path): 

38 processutils.execute('rm', '-rf', dir_path) 

39 

40 

41@manila.privsep.sys_admin_pctxt.entrypoint 

42def is_data_definition_direct_io_supported(src_str, dest_str): 

43 try: 

44 processutils.execute( 

45 'dd', 'count=0', f'if={src_str}', f'of={dest_str}', 

46 'iflag=direct', 'oflag=direct') 

47 is_direct_io_supported = True 

48 except exception.ProcessExecutionError: 

49 is_direct_io_supported = False 

50 

51 return is_direct_io_supported 

52 

53 

54@manila.privsep.sys_admin_pctxt.entrypoint 

55def data_definition(src_str, dest_str, size_in_g, use_direct_io=False): 

56 extra_flags = [] 

57 if use_direct_io: 

58 extra_flags += ['iflag=direct', 'oflag=direct'] 

59 processutils.execute( 

60 'dd', 'if=%s' % src_str, 'of=%s' % dest_str, 'count=%d' % size_in_g, 

61 'bs=1M', *extra_flags) 

62 

63 

64@manila.privsep.sys_admin_pctxt.entrypoint 

65def umount(mount_path): 

66 processutils.execute('umount', '-f', mount_path) 

67 

68 

69@manila.privsep.sys_admin_pctxt.entrypoint 

70def mount(device_name, mount_path, mount_type=None): 

71 extra_args = ['-t', mount_type] if mount_type else [] 

72 processutils.execute('mount', device_name, mount_path, *extra_args) 

73 

74 

75@manila.privsep.sys_admin_pctxt.entrypoint 

76def list_mounts(): 

77 out, err = processutils.execute('mount', '-l') 

78 return out, err 

79 

80 

81@manila.privsep.sys_admin_pctxt.entrypoint 

82def chmod(permission_level_str, mount_path): 

83 processutils.execute('chmod', permission_level_str, mount_path) 

84 

85 

86@manila.privsep.sys_admin_pctxt.entrypoint 

87def find(directory_to_find, min_depth='1', dirs_to_ignore=[], delete=False): 

88 ignored_dirs = [] 

89 extra_args = [] 

90 for dir in dirs_to_ignore: 

91 ignored_dirs += '!', '-path', dir 

92 

93 if delete: 

94 extra_args.append('-delete') 

95 

96 processutils.execute( 

97 'find', directory_to_find, '-mindepth', min_depth, *ignored_dirs, 

98 *extra_args)