118 lines
4.0 KiB
Python
118 lines
4.0 KiB
Python
#!/usr/bin/python
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from pynag.Plugins import simple as Plugin, WARNING, CRITICAL, UNKNOWN, OK
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from subprocess import Popen, PIPE
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import os
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def main():
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global plugin
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plugin = Plugin(must_threshold=False)
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plugin.add_arg("l", "logical-volume",
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"Comma seperated list of VG/LV, eg vg00/data,vg00/snap",
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required=False)
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plugin.add_arg("V", "volume-group",
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"Comma seperated list of VG, eg vg00,vg01",
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required=False)
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plugin.add_arg("a", "check-all", "Check all LVs", required=False,
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action="store_true")
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plugin.activate()
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lvs = plugin["logical-volume"] and plugin["logical-volume"].split(
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",") or []
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vgs = plugin["volume-group"] and plugin["volume-group"].split(",") or []
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if not lvs and not vgs and not plugin['check-all']:
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plugin.parser.error(
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"Either logical-volume or volume-group must be specified")
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elif plugin['check-all'] and ( lvs or vgs ):
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plugin.parser.error(
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"Mixing check-all and logical-volume or volume-group does not make sense")
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check_mirror(lvs, vgs, plugin['check-all'], plugin['host'])
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(code, message) = (plugin.check_messages(joinallstr="\n"))
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plugin.nagios_exit(code, message)
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def check_mirror(lv_list, vg_list, check_all, hostname):
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# Ensure the right locale for text parsing
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"""
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:rtype : None
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"""
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# Change lang setting for string consitency
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env = os.environ.copy()
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env['LC_ALL'] = 'C'
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# Remote execution
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if hostname:
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cmd = ['check_nrpe', '-H', hostname, '-c', 'get_lvm_mirrors']
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# Local
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else:
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cmd = ["lvs", "--separator", ";", "-o",
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"vg_name,lv_name,lv_attr,copy_percent"]
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# Execute lvs
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ret = None
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lvs_output = None
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try:
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lvs = Popen(cmd, stdout=PIPE, shell=False, env=env)
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ret = lvs.wait()
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lvs_output = lvs.stdout.readlines()
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except Exception, e:
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plugin.nagios_exit(UNKNOWN, "Unable to execute lvs: %s" % (e))
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if ret != 0:
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plugin.nagios_exit(CRITICAL,
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"lvs execution failed, return code %i" % (ret))
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all_lvs = []
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all_vgs = []
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# Loop through lvs output
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linenumber = 0
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for l in lvs_output:
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linenumber += 1
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try:
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vg_name, lv_name, lv_attr, copy_percent = l.strip().split(";")
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except ValueError as error:
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plugin.add_message(UNKNOWN,
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"Unable to parse lvs line %i: %s\n%s" % (
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linenumber, error, l))
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continue
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all_lvs.append("%s/%s" % (vg_name, lv_name))
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if vg_name not in all_vgs:
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all_vgs.append(vg_name)
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if check_all or "%s/%s" % (
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vg_name, lv_name) in lv_list or vg_name in vg_list:
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if lv_attr[0] != "m" and lv_attr[0] != "M":
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plugin.add_message(CRITICAL,
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"LV %s/%s not mirrored" % (vg_name, lv_name))
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elif lv_attr[2] != "a":
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plugin.add_message(CRITICAL,
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"LV %s/%s not active" % (vg_name, lv_name))
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elif lv_attr[5] != "o":
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plugin.add_message(CRITICAL,
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"LV %s/%s not open" % (vg_name, lv_name))
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elif float(copy_percent or 0) < 100:
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plugin.add_message(WARNING, "LV %s/%s Copy Percent %s" % (
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vg_name, lv_name, copy_percent))
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else:
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plugin.add_message(OK, "LV %s/%s functioning" % (vg_name, lv_name))
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# Find lvs that were specified in cmd line but were not found via lvs
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for v in vg_list:
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if v not in all_vgs:
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plugin.add_message(CRITICAL, "VG %s not found" % (v))
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# Find lvs that were specified in cmd line but were not found via lvs
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for l in lv_list:
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if l not in all_lvs:
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plugin.add_message(CRITICAL, "LV %s not found" % (l))
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if __name__ == "__main__":
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main()
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