#!/usr/bin/env bash
-'''':; exec "$(command -v python2 || command -v python3 || echo "ERROR python IS NOT AVAILABLE IN THIS SYSTEM")" "$0" "$@" # '''
+'''':; exec "$(command -v python || command -v python3 || command -v python2 || echo "ERROR python IS NOT AVAILABLE IN THIS SYSTEM")" "$0" "$@" # '''
# -*- coding: utf-8 -*-
# Description: netdata python modules supervisor
import sys
import time
import threading
+from re import sub
# -----------------------------------------------------------------------------
# globals & environment setup
PROGRAM = os.path.basename(__file__).replace(".plugin", "")
DEBUG_FLAG = False
+TRACE_FLAG = False
OVERRIDE_UPDATE_EVERY = False
# -----------------------------------------------------------------------------
try:
assert sys.version_info >= (3, 1)
import importlib.machinery
-
+ PY_VERSION = 3
# change this hack below if we want PY_VERSION to be used in modules
# import builtins
# builtins.PY_VERSION = 3
- PY_VERSION = 3
msg.info('Using python v3')
except (AssertionError, ImportError):
try:
msg.info('Using python v2')
except ImportError:
msg.fatal('Cannot start. No importlib.machinery on python3 or lack of imp on python2')
+# try:
+# import yaml
+# except ImportError:
+# msg.fatal('Cannot find yaml library')
try:
- import yaml
+ if PY_VERSION == 3:
+ import pyyaml3 as yaml
+ else:
+ import pyyaml2 as yaml
except ImportError:
msg.fatal('Cannot find yaml library')
+try:
+ from collections import OrderedDict
+ ORDERED = True
+ DICT = OrderedDict
+ msg.info('YAML output is ordered')
+except ImportError:
+ try:
+ from ordereddict import OrderedDict
+ ORDERED = True
+ DICT = OrderedDict
+ msg.info('YAML output is ordered')
+ except ImportError:
+ ORDERED = False
+ DICT = dict
+ msg.info('YAML output is unordered')
+if ORDERED:
+ def ordered_load(stream, Loader=yaml.Loader, object_pairs_hook=OrderedDict):
+ class OrderedLoader(Loader):
+ pass
+
+ def construct_mapping(loader, node):
+ loader.flatten_mapping(node)
+ return object_pairs_hook(loader.construct_pairs(node))
+ OrderedLoader.add_constructor(
+ yaml.resolver.BaseResolver.DEFAULT_MAPPING_TAG,
+ construct_mapping)
+ return yaml.load(stream, OrderedLoader)
+
class PythonCharts(object):
"""
modules=None,
modules_path='../python.d/',
modules_configs='../conf.d/',
- modules_disabled=None):
+ modules_disabled=None,
+ modules_enabled=None,
+ default_run=None):
"""
:param modules: list
:param modules_path: str
:param modules_configs: str
:param modules_disabled: list
+ :param modules_enabled: list
+ :param default_run: bool
"""
if modules is None:
self.configs = modules_configs
# load modules
- loaded_modules = self._load_modules(modules_path, modules, modules_disabled)
+ loaded_modules = self._load_modules(modules_path, modules, modules_disabled, modules_enabled, default_run)
# load configuration files
configured_modules = self._load_configs(loaded_modules)
# good economy and prosperity:
- self.jobs = self._create_jobs(configured_modules) # type: list
+ self.jobs = self._create_jobs(configured_modules) # type <list>
# enable timetable override like `python.d.plugin mysql debug 1`
if DEBUG_FLAG and OVERRIDE_UPDATE_EVERY:
msg.error("Problem loading", name, str(e))
return None
- def _load_modules(self, path, modules, disabled):
+ def _load_modules(self, path, modules, disabled, enabled, default_run):
"""
Load modules from 'modules' list or dynamically every file from 'path' (only .chart.py files)
:param path: str
msg.fatal('no modules found.')
else:
# scan directory specified in path and load all modules from there
- names = os.listdir(path)
+ if default_run is False:
+ names = [module for module in os.listdir(path) if module[:-9] in enabled]
+ else:
+ names = os.listdir(path)
for mod in names:
if mod.replace(MODULE_EXTENSION, "") in disabled:
msg.error(mod + ": disabled module ", mod.replace(MODULE_EXTENSION, ""))
# check if there are dict in config dict
many_jobs = False
for name in config:
- if type(config[name]) is dict:
+ if isinstance(config[name], DICT):
many_jobs = True
break
prefix = job.__module__
if job.name is not None and len(job.name) != 0:
prefix += "/" + job.name
- prefix += ": "
try:
+ msg.error("DISABLED:", prefix)
self.jobs.remove(job)
except Exception as e:
- msg.debug("This shouldn't happen. NO " + prefix + " IN LIST:" + str(self.jobs))
+ msg.debug("This shouldn't happen. NO " + prefix + " IN LIST:" + str(self.jobs) + " ERROR: " + str(e))
+
+ # TODO remove section below and remove `reason`.
+ prefix += ": "
if reason is None:
return
elif reason[:3] == "no ":
"""
i = 0
overridden = []
+ msg.debug("all job objects", str(self.jobs))
while i < len(self.jobs):
job = self.jobs[i]
try:
if not job.check():
- self._stop(job, "failed check")
+ msg.error(job.chart_name, "check() failed - disabling job")
+ self._stop(job)
else:
- msg.debug(job.chart_name, ": check succeeded")
+ msg.info("CHECKED OK:", job.chart_name)
i += 1
try:
if job.override_name is not None:
- tmp = job.name
- job.name = job.override_name
- msg.debug(job.chart_name + " changing chart name to: " + job.__module__ + '_' + job.name)
- job.chart_name = job.__module__ + '_' + job.name
- if job.chart_name in overridden:
+ new_name = job.__module__ + '_' + sub(r'\s+', '_', job.override_name)
+ if new_name in overridden:
+ msg.info("DROPPED:", job.name, ", job '" + job.override_name +
+ "' is already served by another job.")
self._stop(job)
- msg.error(job.chart_name + " already exists. Created with '" + tmp + "'")
+ i -= 1
else:
+ job.name = job.override_name
+ msg.info("RENAMED:", new_name, ", from " + job.chart_name)
+ job.chart_name = new_name
overridden.append(job.chart_name)
except Exception:
pass
- except AttributeError:
- self._stop(job, "no check")
+ except AttributeError as e:
+ self._stop(job)
+ msg.error(job.chart_name, "cannot find check() function or it thrown unhandled exception.")
+ msg.debug(str(e))
except (UnboundLocalError, Exception) as e:
- self._stop(job, "misbehaving. Reason:" + str(e))
+ msg.error(job.chart_name, str(e))
+ self._stop(job)
+ msg.debug("overridden job names:", str(overridden))
+ msg.debug("all remaining job objects:", str(self.jobs))
def create(self):
"""
job = self.jobs[i]
try:
if not job.create():
- self._stop(job, "failed create")
+ msg.error(job.chart_name, "create function failed.")
+ self._stop(job)
else:
chart = job.chart_name
sys.stdout.write(
# sys.stdout.flush()
i += 1
except AttributeError:
- self._stop(job, "no create")
+ msg.error(job.chart_name, "cannot find create() function or it thrown unhandled exception.")
+ self._stop(job)
except (UnboundLocalError, Exception) as e:
- self._stop(job, "misbehaving. Reason: " + str(e))
+ msg.error(job.chart_name, str(e))
+ self._stop(job)
def update(self):
"""
"""
try:
with open(path, 'r') as stream:
- config = yaml.load(stream)
+ if ORDERED:
+ config = ordered_load(stream, yaml.SafeLoader)
+ else:
+ config = yaml.load(stream)
except (OSError, IOError):
msg.error(str(path), "is not a valid configuration file")
return None
:param commands: list of str
:return: dict
"""
- global DEBUG_FLAG
+ global DEBUG_FLAG, TRACE_FLAG
global OVERRIDE_UPDATE_EVERY
global BASE_CONFIG
elif cmd == "debug" or cmd == "all":
DEBUG_FLAG = True
# redirect stderr to stdout?
+ elif cmd == "trace" or cmd == "all":
+ TRACE_FLAG = True
elif os.path.isfile(directory + cmd + ".chart.py") or os.path.isfile(directory + cmd):
- #DEBUG_FLAG = True
+ # DEBUG_FLAG = True
mods.append(cmd.replace(".chart.py", ""))
else:
try:
"""
Main program.
"""
- global DEBUG_FLAG, BASE_CONFIG
+ global DEBUG_FLAG, TRACE_FLAG, BASE_CONFIG
# read configuration file
- disabled = []
+ disabled = ['nginx_log', 'gunicorn_log']
+ enabled = list()
+ default_run = True
configfile = CONFIG_DIR + "python.d.conf"
msg.PROGRAM = PROGRAM
msg.info("reading configuration file:", configfile)
+ log_throttle = 200
+ log_interval = 3600
conf = read_config(configfile)
if conf is not None:
msg.fatal('disabled in configuration file.\n')
except (KeyError, TypeError):
pass
+
try:
for param in BASE_CONFIG:
BASE_CONFIG[param] = conf[param]
except (KeyError, TypeError):
pass # use default update_every from NETDATA_UPDATE_EVERY
+
try:
DEBUG_FLAG = conf['debug']
except (KeyError, TypeError):
pass
+
+ try:
+ TRACE_FLAG = conf['trace']
+ except (KeyError, TypeError):
+ pass
+
+ try:
+ log_throttle = conf['logs_per_interval']
+ except (KeyError, TypeError):
+ pass
+
+ try:
+ log_interval = conf['log_interval']
+ except (KeyError, TypeError):
+ pass
+
+ default_run = True if ('default_run' not in conf or conf.get('default_run')) else False
+
for k, v in conf.items():
- if k in ("update_every", "debug", "enabled"):
+ if k in ("update_every", "debug", "enabled", "default_run"):
continue
- if v is False:
- disabled.append(k)
-
+ if default_run:
+ if v is False:
+ disabled.append(k)
+ else:
+ if v is True:
+ enabled.append(k)
# parse passed command line arguments
modules = parse_cmdline(MODULES_DIR, *sys.argv)
msg.DEBUG_FLAG = DEBUG_FLAG
+ msg.TRACE_FLAG = TRACE_FLAG
+ msg.LOG_THROTTLE = log_throttle
+ msg.LOG_INTERVAL = log_interval
+ msg.LOG_COUNTER = 0
+ msg.LOG_NEXT_CHECK = 0
msg.info("MODULES_DIR='" + MODULES_DIR +
"', CONFIG_DIR='" + CONFIG_DIR +
"', UPDATE_EVERY=" + str(BASE_CONFIG['update_every']) +
", ONLY_MODULES=" + str(modules))
# run plugins
- charts = PythonCharts(modules, MODULES_DIR, CONFIG_DIR + "python.d/", disabled)
+ charts = PythonCharts(modules, MODULES_DIR, CONFIG_DIR + "python.d/", disabled, enabled, default_run)
charts.check()
charts.create()
charts.update()
projects / netdata.git / blobdiff