1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
# -*- coding: utf-8 -*-
from __future__ import absolute_import
import six
import rbd
from .. import mgr
from .ceph_service import CephService
RBD_FEATURES_NAME_MAPPING = {
rbd.RBD_FEATURE_LAYERING: "layering",
rbd.RBD_FEATURE_STRIPINGV2: "striping",
rbd.RBD_FEATURE_EXCLUSIVE_LOCK: "exclusive-lock",
rbd.RBD_FEATURE_OBJECT_MAP: "object-map",
rbd.RBD_FEATURE_FAST_DIFF: "fast-diff",
rbd.RBD_FEATURE_DEEP_FLATTEN: "deep-flatten",
rbd.RBD_FEATURE_JOURNALING: "journaling",
rbd.RBD_FEATURE_DATA_POOL: "data-pool",
rbd.RBD_FEATURE_OPERATIONS: "operations",
}
def format_bitmask(features):
"""
Formats the bitmask:
>>> format_bitmask(45)
['deep-flatten', 'exclusive-lock', 'layering', 'object-map']
"""
names = [val for key, val in RBD_FEATURES_NAME_MAPPING.items()
if key & features == key]
return sorted(names)
def format_features(features):
"""
Converts the features list to bitmask:
>>> format_features(['deep-flatten', 'exclusive-lock', 'layering', 'object-map'])
45
>>> format_features(None) is None
True
>>> format_features('deep-flatten, exclusive-lock')
32
"""
if isinstance(features, six.string_types):
features = features.split(',')
if not isinstance(features, list):
return None
res = 0
for key, value in RBD_FEATURES_NAME_MAPPING.items():
if value in features:
res = key | res
return res
class RbdConfiguration(object):
_rbd = rbd.RBD()
def __init__(self, pool_name='', image_name='', pool_ioctx=None, image_ioctx=None):
# type: (str, str, object, object) -> None
assert bool(pool_name) != bool(pool_ioctx) # xor
self._pool_name = pool_name
self._image_name = image_name
self._pool_ioctx = pool_ioctx
self._image_ioctx = image_ioctx
@staticmethod
def _ensure_prefix(option):
# type: (str) -> str
return option if option.startswith('conf_') else 'conf_' + option
def list(self):
# type: () -> [dict]
def _list(ioctx):
if self._image_name: # image config
try:
with rbd.Image(ioctx, self._image_name) as image:
result = image.config_list()
except rbd.ImageNotFound:
result = []
else: # pool config
pg_status = list(CephService.get_pool_pg_status(self._pool_name).keys())
if len(pg_status) == 1 and 'incomplete' in pg_status[0]:
# If config_list would be called with ioctx if it's a bad pool,
# the dashboard would stop working, waiting for the response
# that would not happen.
#
# This is only a workaround for https://tracker.ceph.com/issues/43771 which
# already got rejected as not worth the effort.
#
# Are more complete workaround for the dashboard will be implemented with
# https://tracker.ceph.com/issues/44224
#
# @TODO: If #44224 is addressed remove this workaround
return []
result = self._rbd.config_list(ioctx)
return list(result)
if self._pool_name:
ioctx = mgr.rados.open_ioctx(self._pool_name)
else:
ioctx = self._pool_ioctx
return _list(ioctx)
def get(self, option_name):
# type: (str) -> str
option_name = self._ensure_prefix(option_name)
with mgr.rados.open_ioctx(self._pool_name) as pool_ioctx:
if self._image_name:
with rbd.Image(pool_ioctx, self._image_name) as image:
return image.metadata_get(option_name)
return self._rbd.pool_metadata_get(pool_ioctx, option_name)
def set(self, option_name, option_value):
# type: (str, str) -> None
option_value = str(option_value)
option_name = self._ensure_prefix(option_name)
pool_ioctx = self._pool_ioctx
if self._pool_name: # open ioctx
pool_ioctx = mgr.rados.open_ioctx(self._pool_name)
pool_ioctx.__enter__()
image_ioctx = self._image_ioctx
if self._image_name:
image_ioctx = rbd.Image(pool_ioctx, self._image_name)
image_ioctx.__enter__()
if image_ioctx:
image_ioctx.metadata_set(option_name, option_value)
else:
self._rbd.pool_metadata_set(pool_ioctx, option_name, option_value)
if self._image_name: # Name provided, so we opened it and now have to close it
image_ioctx.__exit__(None, None, None)
if self._pool_name:
pool_ioctx.__exit__(None, None, None)
def remove(self, option_name):
"""
Removes an option by name. Will not raise an error, if the option hasn't been found.
:type option_name str
"""
def _remove(ioctx):
try:
if self._image_name:
with rbd.Image(ioctx, self._image_name) as image:
image.metadata_remove(option_name)
else:
self._rbd.pool_metadata_remove(ioctx, option_name)
except KeyError:
pass
option_name = self._ensure_prefix(option_name)
if self._pool_name:
with mgr.rados.open_ioctx(self._pool_name) as pool_ioctx:
_remove(pool_ioctx)
else:
_remove(self._pool_ioctx)
def set_configuration(self, configuration):
if configuration:
for option_name, option_value in configuration.items():
if option_value is not None:
self.set(option_name, option_value)
else:
self.remove(option_name)
|