84 lines
3 KiB
Python
84 lines
3 KiB
Python
# pylint: disable=C0111,R0903
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"""Periodically checks the RTT of a configurable host using ICMP echos
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Requires the following executable:
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* ping
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Parameters:
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* ping.interval: Time in seconds between two RTT checks (defaults to 60)
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* ping.address : IP address to check
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* ping.timeout : Timeout for waiting for a reply (defaults to 5.0)
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* ping.probes : Number of probes to send (defaults to 5)
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* ping.warning : Threshold for warning state, in seconds (defaults to 1.0)
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* ping.critical: Threshold for critical state, in seconds (defaults to 2.0)
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"""
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import re
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import time
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import threading
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import bumblebee.input
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import bumblebee.output
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import bumblebee.engine
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def get_rtt(module, widget):
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try:
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widget.set("rtt-unreachable", False)
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res = bumblebee.util.execute("ping -n -q -c {} -W {} {}".format(
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widget.get("rtt-probes"), widget.get("rtt-timeout"), widget.get("address")
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))
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for line in res.split("\n"):
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if line.startswith("{} packets transmitted".format(widget.get("rtt-probes"))):
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m = re.search(r'(\d+)% packet loss', line)
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widget.set('packet-loss', m.group(1))
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if not line.startswith("rtt"): continue
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m = re.search(r'([0-9\.]+)/([0-9\.]+)/([0-9\.]+)/([0-9\.]+)\s+(\S+)', line)
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widget.set("rtt-min", float(m.group(1)))
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widget.set("rtt-avg", float(m.group(2)))
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widget.set("rtt-max", float(m.group(3)))
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widget.set("rtt-unit", m.group(5))
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except Exception as e:
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widget.set("rtt-unreachable", True)
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class Module(bumblebee.engine.Module):
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def __init__(self, engine, config):
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widget = bumblebee.output.Widget(full_text=self.rtt)
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super(Module, self).__init__(engine, config, widget)
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widget.set("address", self.parameter("address", "8.8.8.8"))
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widget.set("interval", self.parameter("interval", 60))
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widget.set("rtt-probes", self.parameter("probes", 5))
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widget.set("rtt-timeout", self.parameter("timeout", 5.0))
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widget.set("rtt-avg", 0.0)
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widget.set("rtt-unit", "")
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widget.set('packet-loss', 0)
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self._next_check = 0
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def rtt(self, widget):
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if widget.get("rtt-unreachable"):
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return "{}: unreachable".format(widget.get("address"))
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return "{}: {:.1f}{} ({}%)".format(
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widget.get("address"),
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widget.get("rtt-avg"),
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widget.get("rtt-unit"),
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widget.get('packet-loss')
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)
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def state(self, widget):
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if widget.get("rtt-unreachable"): return ["critical"]
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return self.threshold_state(widget.get("rtt-avg"), 1000.0, 2000.0)
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def update(self, widgets):
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if int(time.time()) < self._next_check:
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return
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thread = threading.Thread(target=get_rtt, args=(self, widgets[0],))
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thread.start()
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self._next_check = int(time.time()) + int(widgets[0].get("interval"))
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# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
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