1 | # |
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2 | # This file is part of Glances. |
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3 | # |
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4 | # SPDX-FileCopyrightText: 2022 Nicolas Hennion <[email protected]> |
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5 | # |
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6 | # SPDX-License-Identifier: LGPL-3.0-only |
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7 | # |
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8 | |||
9 | """OpenTSDB interface class.""" |
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10 | |||
11 | import sys |
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12 | from numbers import Number |
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13 | |||
14 | import potsdb |
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15 | |||
16 | from glances.exports.export import GlancesExport |
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17 | from glances.logger import logger |
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18 | |||
19 | |||
20 | class Export(GlancesExport): |
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21 | """This class manages the OpenTSDB export module.""" |
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22 | |||
23 | View Code Duplication | def __init__(self, config=None, args=None): |
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24 | """Init the OpenTSDB export IF.""" |
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25 | super().__init__(config=config, args=args) |
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26 | |||
27 | # Mandatory configuration keys (additional to host and port) |
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28 | # N/A |
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29 | |||
30 | # Optionals configuration keys |
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31 | self.prefix = None |
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32 | self.tags = None |
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33 | |||
34 | # Load the configuration file |
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35 | self.export_enable = self.load_conf('opentsdb', mandatories=['host', 'port'], options=['prefix', 'tags']) |
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36 | if not self.export_enable: |
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37 | exit('Missing OPENTSDB config') |
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38 | |||
39 | # Default prefix for stats is 'glances' |
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40 | if self.prefix is None: |
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41 | self.prefix = 'glances' |
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42 | |||
43 | # Init the OpenTSDB client |
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44 | self.client = self.init() |
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45 | |||
46 | def init(self): |
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47 | """Init the connection to the OpenTSDB server.""" |
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48 | if not self.export_enable: |
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49 | return None |
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50 | |||
51 | try: |
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52 | db = potsdb.Client(self.host, port=int(self.port), check_host=True) |
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53 | except Exception as e: |
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54 | logger.critical(f"Cannot connect to OpenTSDB server {self.host}:{self.port} ({e})") |
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55 | sys.exit(2) |
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56 | |||
57 | return db |
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58 | |||
59 | View Code Duplication | def export(self, name, columns, points): |
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60 | """Export the stats to the Statsd server.""" |
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61 | for i in range(len(columns)): |
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62 | if not isinstance(points[i], Number): |
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63 | continue |
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64 | stat_name = f'{self.prefix}.{name}.{columns[i]}' |
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65 | stat_value = points[i] |
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66 | tags = self.parse_tags(self.tags) |
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67 | try: |
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68 | self.client.send(stat_name, stat_value, **tags) |
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69 | except Exception as e: |
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70 | logger.error(f"Can not export stats {name} to OpenTSDB ({e})") |
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71 | logger.debug(f"Export {name} stats to OpenTSDB") |
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72 | |||
73 | def exit(self): |
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74 | """Close the OpenTSDB export module.""" |
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75 | # Waits for all outstanding metrics to be sent and background thread closes |
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76 | self.client.wait() |
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77 | # Call the father method |
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78 | super().exit() |
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79 |