123 lines
4.3 KiB
Python
123 lines
4.3 KiB
Python
#!/usr/bin/env python
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from pynag.Plugins import PluginHelper, ok, warning, critical, unknown
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from pynag.Utils import runCommand
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from collections import namedtuple
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valid_queries = "lsarray lsmdiskgrp lsdrive"
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p = PluginHelper()
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p.add_option("-H", "--hostname", help="Hostname or ip address", dest="hostname")
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p.add_option("-U", "--user", help="Log in as this user to storwize", dest="user", default="nagios")
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p.add_option("-Q", "--query", help="Query to send to storwize (see also -L)", dest="query", default="lsarray")
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p.add_option("-L", "--list-queries", help="List of valid queries", dest="list_queries", action="store_true")
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p.add_option("--test", help="Run this plugin in test mode", dest="test", action="store_true")
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p.parse_arguments()
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if not p.options.hostname:
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p.parser.error("Required options -H is missing")
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if p.options.query not in valid_queries.split():
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p.parser.error("%s does not look like a valid query. Use -L for a list of valid queries" % p.options.query)
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if p.options.list_queries is True:
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p.parser.error("Valid Queries: %s" % valid_queries)
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query = p.options.query
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# Connect to remote storwize and run a connect
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def run_query():
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""" Connect to a remote storwize box and run query """
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command = "ssh %s@%s %s" % (p.options.user, p.options.hostname, p.options.query)
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if p.options.test:
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command = "cat tests/%s.txt" % (p.options.query)
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return_code, stdout, stderr = runCommand(command)
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if return_code != 0:
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p.status(unknown)
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p.add_summary("Got error %s when trying to log into remote storwize box" % return_code)
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p.add_long_output("\ncommand:\n===============\n%s" % command)
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p.add_long_output("\nStandard output:\n==============\n%s" % (stdout))
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p.add_long_output("\nStandard stderr:\n==============\n%s" % (stderr))
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p.exit()
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if stderr:
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p.status(unknown)
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p.add_summary("Error when connecting to storwize: %s" % stderr)
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p.exit()
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# Parse the output of run query and return a list of "rows"
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lines = stdout.splitlines()
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top_line = lines.pop(0)
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headers = top_line.split()
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Row = namedtuple('Row', ' '.join(headers))
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rows = []
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for i in lines:
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i = i.strip()
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columns = i.split()
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# When running lsdrive spare disks do not have same number of columns as other columns.
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if query == 'lsdrive':
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columns = columns[0:2] + [None] + columns[2:] + [None, None]
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if columns[3] == 'spare':
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columns = columns[0:5] + [None, None, None] + columns[5:]
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row = Row(*columns)
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rows.append(row)
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return rows
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def check_lsmdiskgrp():
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p.add_summary("%s diskgroups found" % (len(rows)))
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p.add_metric("number of groups", len(rows))
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for row in rows:
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if row.status != 'online':
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p.status(critical)
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p.add_summary("group %s is %s." % (row.name, row.status))
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p.add_long_output("%s: used: %s out of %s" % (row.name, row.used_capacity, row.capacity))
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# Add a performance metric
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metric_name = "%s_capacity" % row.name
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p.add_metric(metric_name, value=row.used_capacity, max=row.capacity)
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def check_lsdrive():
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p.add_summary("%s drives found" % (len(rows)))
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p.add_metric("number of drives", len(rows))
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for row in rows:
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if row.status != 'online':
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p.add_summary("drive %s is %s" % (row.id, row.status))
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def check_lsarray():
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p.add_summary("%s arrays found" % (len(rows)))
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p.add_metric("number of arrays", len(rows))
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for row in rows:
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if row.status != 'online':
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p.add_summary("array %s is %s." % (row.name, row.status))
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p.status(critical)
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# Add some performance metrics
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metric_name = row.mdisk_name + "_capacity"
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p.add_metric(metric_name, value=row.capacity)
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def main():
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if query == 'lsmdiskgrp':
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check_lsmdiskgrp()
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elif query == 'lsarray':
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check_lsarray()
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elif query == 'lsdrive':
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check_lsdrive()
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else:
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p.status(unknown)
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p.add_summary("unsupported query: %s. See -L for list of valid queries" % query)
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p.exit()
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if __name__ == '__main__':
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try:
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rows = run_query()
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main()
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except KeyError, e:
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p.status(unknown)
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p.add_summary("Unhandled exception when running plugin")
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p.add_long_output(str(e))
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p.check_all_metrics()
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p.exit()
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