def main():
opts, args = parse_args()
try:
if opts.host is None:
raise UsageError('No host argument.')
if opts.query:
G = ganglia.Gmetad(opts.ganglia_server, opts.port,
opts.cluster)
else:
G = ganglia.Gmond(opts.ganglia_server, opts.port)
host = G.query(opts.host)
if opts.list:
list_metrics(host)
sys.exit(STATUS_OKAY)
else:
state, val, xtra = check_metric(opts, host)
nagios.result(opts.metric, state,
msg='%s' % (val),
perfdata=([(opts.metric, val)] + xtra))
except UsageError, detail:
nagios.result(opts.host, STATUS_WTF, str(detail))
def parse_args():
p = nagios.OptionParser()
p.add_option('-g', '--ganglia-server', default='localhost',
help='Address of gmond/gmetad host.')
p.add_option('-H', '--host',
help='Host for which we want metrics.')
p.add_option('-l', '--list', action='store_true',
help='List available metrics on the target host.')
p.add_option('-m', '--metric',
help='Metric to compare against threshold values.')
p.add_option('-X', '--expression',
help='Expression to compare against threshold values.')
p.add_option('-q', '--query', action='store_true',
help='Use gmetad query interface instead of gmond.')
p.add_option('-C', '--cluster',
help='Cluster name for gmetad query.')
p.add_option('-x', '--extra-metrics', action='append',
help='Additional metrics to return as performance data.',
default=[])
p.add_option('-M', '--missing', default='WARN',
help='Exit status on connection failure, missing '
'host or missing metric (default WARN).')
p.add_option('-p', '--port',
help='Port on which to communicate w/ gmond/gmetad')
opts, args = p.parse_args();
try:
missing = STATUS.index(opts.missing)
except ValueError:
nagios.result(opts.host, STATUS_WTF,
'Unknown exit status for -m: %s' % opts.missing)
opts.missing = missing
return (opts, args)
try:
if opts.host is None:
raise UsageError('No host argument.')
if opts.query:
G = ganglia.Gmetad(opts.ganglia_server, opts.port,
opts.cluster)
else:
G = ganglia.Gmond(opts.ganglia_server, opts.port)
host = G.query(opts.host)
if opts.list:
list_metrics(host)
sys.exit(STATUS_OKAY)
else:
state, val, xtra = check_metric(opts, host)
nagios.result(opts.metric, state,
msg='%s' % (val),
perfdata=([(opts.metric, val)] + xtra))
except UsageError, detail:
nagios.result(opts.host, STATUS_WTF, str(detail))
except (ConnectionError, NoSuchHost, NoSuchMetric), detail:
nagios.result(opts.host, opts.missing, str(detail))
if __name__ == '__main__':
main()