]> git.ipfire.org Git - oddments/collecty.git/blame - collecty/plugins/entropy.py
Update plugins to adapt the recent changes.
[oddments/collecty.git] / collecty / plugins / entropy.py
CommitLineData
55c28321
MT
1#!/usr/bin/python
2###############################################################################
3# #
4# collecty - A system statistics collection daemon for IPFire #
5# Copyright (C) 2012 IPFire development team #
6# #
7# This program is free software: you can redistribute it and/or modify #
8# it under the terms of the GNU General Public License as published by #
9# the Free Software Foundation, either version 3 of the License, or #
10# (at your option) any later version. #
11# #
12# This program is distributed in the hope that it will be useful, #
13# but WITHOUT ANY WARRANTY; without even the implied warranty of #
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
15# GNU General Public License for more details. #
16# #
17# You should have received a copy of the GNU General Public License #
18# along with this program. If not, see <http://www.gnu.org/licenses/>. #
19# #
20###############################################################################
21
22import os
23
24import base
25
73db5226
MT
26from ..i18n import _
27
55c28321
MT
28ENTROPY_FILE = "/proc/sys/kernel/random/entropy_avail"
29
b1ea4956 30class GraphTemplateEntropy(base.GraphTemplate):
55c28321 31 name = "entropy"
55c28321 32
73db5226
MT
33 rrd_graph = [
34 "DEF:entropy=%(file)s:entropy:AVERAGE",
35 "CDEF:entropytrend=entropy,43200,TREND",
36
37 "LINE3:entropy#ff0000:%-15s" % _("Available entropy"),
38 "VDEF:entrmin=entropy,MINIMUM",
39 "VDEF:entrmax=entropy,MAXIMUM",
40 "VDEF:entravg=entropy,AVERAGE",
41 "GPRINT:entrmax:%12s\:" % _("Maximum") + " %5.0lf",
42 "GPRINT:entrmin:%12s\:" % _("Minimum") + " %5.0lf",
43 "GPRINT:entravg:%12s\:" % _("Average") + " %5.0lf\\n",
44
45 "LINE3:entropytrend#000000",
46 ]
b1ea4956 47
73db5226
MT
48 rrd_graph_args = [
49 "--title", _("Available entropy"),
50 "--vertical-label", _("Bits"),
51
52 "--lower-limit", "0", "--rigid",
53 ]
54
b1ea4956
MT
55
56class DataSourceEntropy(base.DataSource):
57 name = "entropy"
58 description = "Entropy Data Source"
59
60 templates = [GraphTemplateEntropy,]
61
62 rrd_schema = [
de090041 63 "DS:entropy:GAUGE:0:U",
b1ea4956
MT
64 ]
65
55c28321
MT
66 @classmethod
67 def autocreate(cls, collecty, **kwargs):
68 if not os.path.exists(ENTROPY_FILE):
69 self.log.debug(_("Entropy kernel interface does not exist."))
70 return
71
72 return cls(collecty, **kwargs)
73
74 def read(self):
bba5cf66 75 f = None
55c28321 76
bba5cf66
MT
77 try:
78 f = open(ENTROPY_FILE)
79 entropy = f.readline()
55c28321 80
bba5cf66
MT
81 return entropy.strip()
82 finally:
83 if f:
84 f.close()