python.d/nginx_log.chart.py

   1 # -*- coding: utf-8 -*-
   2 # Description: nginx log netdata python.d module
   3 # Author: Pawel Krupa (paulfantom)
   4
   5 from base import LogService
   6 import re
   7
   8 priority = 60000
   9 retries = 60
  10 # update_every = 3
  11
  12 ORDER = ['codes']
  13 CHARTS = {
  14     'codes': {
  15         'options': [None, 'nginx status codes', 'requests/s', 'requests', 'nginx_log.codes', 'stacked'],
  16         'lines': [
  17             ["2xx", None, "incremental"],
  18             ["5xx", None, "incremental"],
  19             ["3xx", None, "incremental"],
  20             ["4xx", None, "incremental"],
  21             ["1xx", None, "incremental"],
  22             ["other", None, "incremental"]
  23         ]}
  24 }
  25
  26
  27 class Service(LogService):
  28     def __init__(self, configuration=None, name=None):
  29         LogService.__init__(self, configuration=configuration, name=name)
  30         if len(self.log_path) == 0:
  31             self.log_path = "/var/log/nginx/access.log"
  32         self.order = ORDER
  33         self.definitions = CHARTS
  34         pattern = r'" ([0-9]{3}) ?'
  35         #pattern = r'(?:" )([0-9][0-9][0-9]) ?'
  36         self.regex = re.compile(pattern)
  37
  38         self.data = {
  39             '1xx': 0,
  40             '2xx': 0,
  41             '3xx': 0,
  42             '4xx': 0,
  43             '5xx': 0,
  44             'other': 0
  45         }
  46
  47     def _get_data(self):
  48         """
  49         Parse new log lines
  50         :return: dict
  51         """
  52         try:
  53             raw = self._get_raw_data()
  54             if raw is None:
  55                 return None
  56             elif not raw:
  57                 return self.data
  58         except (ValueError, AttributeError):
  59             return None
  60
  61         regex = self.regex
  62         for line in raw:
  63             code = regex.search(line)
  64             try:
  65                 beginning = code.group(1)[0]
  66             except AttributeError:
  67                 continue
  68
  69             if beginning == '2':
  70                 self.data["2xx"] += 1
  71             elif beginning == '3':
  72                 self.data["3xx"] += 1
  73             elif beginning == '4':
  74                 self.data["4xx"] += 1
  75             elif beginning == '5':
  76                 self.data["5xx"] += 1
  77             elif beginning == '1':
  78                 self.data["1xx"] += 1
  79             else:
  80                 self.data["other"] += 1
  81
  82         return self.data