1 | # -*- coding: utf-8 -*- |
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2 | # |
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3 | # This file is part of Glances. |
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4 | # |
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5 | # Copyright (C) 2015 Nicolargo <[email protected]> |
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6 | # |
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7 | # Glances is free software; you can redistribute it and/or modify |
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8 | # it under the terms of the GNU Lesser General Public License as published by |
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9 | # the Free Software Foundation, either version 3 of the License, or |
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10 | # (at your option) any later version. |
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11 | # |
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12 | # Glances is distributed in the hope that it will be useful, |
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13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 | # GNU Lesser General Public License for more details. |
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16 | # |
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17 | # You should have received a copy of the GNU Lesser General Public License |
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18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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19 | |||
20 | """OpenTSDB interface class.""" |
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21 | |||
22 | import sys |
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23 | from numbers import Number |
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24 | |||
25 | from glances.compat import NoOptionError, NoSectionError, range |
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26 | from glances.logger import logger |
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27 | from glances.exports.glances_export import GlancesExport |
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28 | |||
29 | import potsdb |
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30 | |||
31 | |||
32 | class Export(GlancesExport): |
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33 | |||
34 | """This class manages the OpenTSDB export module.""" |
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35 | |||
36 | View Code Duplication | def __init__(self, config=None, args=None): |
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37 | """Init the OpenTSDB export IF.""" |
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38 | super(Export, self).__init__(config=config, args=args) |
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39 | |||
40 | # Load the InfluxDB configuration file |
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41 | self.host = None |
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42 | self.port = None |
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43 | self.prefix = None |
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44 | self.tags = None |
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45 | self.export_enable = self.load_conf() |
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46 | if not self.export_enable: |
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47 | sys.exit(2) |
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48 | |||
49 | # Default prefix for stats is 'glances' |
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50 | if self.prefix is None: |
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51 | self.prefix = 'glances' |
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52 | |||
53 | # Init the OpenTSDB client |
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54 | self.client = self.init() |
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55 | |||
56 | View Code Duplication | def load_conf(self, section="opentsdb"): |
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57 | """Load the OpenTSDB configuration in the Glances configuration file.""" |
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58 | if self.config is None: |
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59 | return False |
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60 | try: |
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61 | self.host = self.config.get_value(section, 'host') |
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62 | self.port = self.config.get_value(section, 'port') |
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63 | except NoSectionError: |
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64 | logger.critical("No OpenTSDB configuration found") |
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65 | return False |
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66 | except NoOptionError as e: |
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67 | logger.critical("Error in the OpenTSDB configuration (%s)" % e) |
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68 | return False |
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69 | else: |
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70 | logger.debug("Load OpenTSDB from the Glances configuration file") |
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71 | |||
72 | # Prefix is optional |
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73 | try: |
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74 | self.prefix = self.config.get_value(section, 'prefix') |
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75 | except NoOptionError: |
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76 | pass |
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77 | |||
78 | # Tags are optional, comma separated key:value pairs. |
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79 | try: |
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80 | self.tags = self.config.get_value(section, 'tags') |
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81 | except NoOptionError: |
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82 | pass |
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83 | |||
84 | return True |
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85 | |||
86 | def init(self): |
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87 | """Init the connection to the OpenTSDB server.""" |
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88 | if not self.export_enable: |
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89 | return None |
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90 | |||
91 | try: |
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92 | db = potsdb.Client(self.host, |
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93 | port=int(self.port), |
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94 | check_host=True) |
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95 | except Exception as e: |
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96 | logger.critical("Cannot connect to OpenTSDB server %s:%s (%s)" % (self.host, self.port, e)) |
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97 | sys.exit(2) |
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98 | |||
99 | return db |
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100 | |||
101 | View Code Duplication | def export(self, name, columns, points): |
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102 | """Export the stats to the Statsd server.""" |
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103 | for i in range(len(columns)): |
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104 | if not isinstance(points[i], Number): |
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105 | continue |
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106 | stat_name = '{}.{}.{}'.format(self.prefix, name, columns[i]) |
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107 | stat_value = points[i] |
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108 | tags = self.parse_tags(self.tags) |
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109 | try: |
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110 | self.client.send(stat_name, stat_value, **tags) |
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111 | except Exception as e: |
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112 | logger.error("Can not export stats %s to OpenTSDB (%s)" % (name, e)) |
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113 | logger.debug("Export {} stats to OpenTSDB".format(name)) |
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114 | |||
115 | def exit(self): |
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116 | """Close the OpenTSDB export module.""" |
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117 | # Waits for all outstanding metrics to be sent and background thread closes |
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118 | self.client.wait() |
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119 | # Call the father method |
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120 | super(Export, self).exit() |
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121 |