我正在尝试在我正在运行的脚本中导入 snmpSessionBaseClass python 模块，但我没有安装该模块，我似乎无法找到下载它的位置。有谁知道下载和安装这个模块的 pip 或 yum 命令？谢谢！
import netsnmp
sys.path.insert(1, os.path.join(sys.path[0], os.pardir))
from snmpSessionBaseClass import add_common_options, get_common_options, verify_host, get_data
from pynag.Plugins import PluginHelper,ok,critical
需要将以下代码添加到名为 snmpSessionBaseClass.py 的文件中，并且该文件需要放置在 pythons 路径中的目录中。
#!/usr/bin/env python
# Copyright (C) 2016 rsmuc <rsmuc@mailbox.org>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with health_monitoring_plugins. If not, see <http://www.gnu.org/licenses/>.
import pynag
import netsnmp
import os
import sys
dev_null = os.open(os.devnull, os.O_WRONLY)
tmp_stdout = os.dup(sys.stdout.fileno())
def dev_null_wrapper(func, *a, **kwargs):
"""
Temporarily swap stdout with /dev/null, and execute given function while stdout goes to /dev/null.
This is useful because netsnmp writes to stdout and disturbes Icinga result in some cases.
"""
os.dup2(dev_null, sys.stdout.fileno())
return_object = func(*a, **kwargs)
sys.stdout.flush()
os.dup2(tmp_stdout, sys.stdout.fileno())
return return_object
def add_common_options(helper):
# Define the common command line parameters
helper.parser.add_option('-H', help="Hostname or ip address", dest="hostname")
helper.parser.add_option('-C', '--community', dest='community', help='SNMP community of the SNMP service on target host.', default='public')
helper.parser.add_option('-V', '--snmpversion', dest='version', help='SNMP version. (1 or 2)', default=2, type='int')
def get_common_options(helper):
# get the common options
host = helper.options.hostname
version = helper.options.version
community = helper.options.community
return host, version, community
def verify_host(host, helper):
if host == "" or host is None:
helper.exit(summary="Hostname must be specified"
, exit_code=pynag.Plugins.unknown
, perfdata='')
netsnmp_session = dev_null_wrapper(netsnmp.Session,
DestHost=helper.options.hostname,
Community=helper.options.community,
Version=helper.options.version)
try:
# Works around lacking error handling in netsnmp package.
if netsnmp_session.sess_ptr == 0:
helper.exit(summary="SNMP connection failed"
, exit_code=pynag.Plugins.unknown
, perfdata='')
except ValueError as error:
helper.exit(summary=str(error)
, exit_code=pynag.Plugins.unknown
, perfdata='')
# make a snmp get, if it fails (or returns nothing) exit the plugin
def get_data(session, oid, helper, empty_allowed=False):
var = netsnmp.Varbind(oid)
varl = netsnmp.VarList(var)
data = session.get(varl)
value = data[0]
if value is None:
helper.exit(summary="snmpget failed - no data for host "
+ session.DestHost + " OID: " +oid
, exit_code=pynag.Plugins.unknown
, perfdata='')
if not empty_allowed and not value:
helper.exit(summary="snmpget failed - no data for host "
+ session.DestHost + " OID: " +oid
, exit_code=pynag.Plugins.unknown
, perfdata='')
return value
# make a snmp get, but do not exit the plugin, if it returns nothing
# be careful! This funciton does not exit the plugin, if snmp get fails!
def attempt_get_data(session, oid):
var = netsnmp.Varbind(oid)
varl = netsnmp.VarList(var)
data = session.get(varl)
value = data[0]
return value
# make a snmp walk, if it fails (or returns nothing) exit the plugin
def walk_data(session, oid, helper):
tag = []
var = netsnmp.Varbind(oid)
varl = netsnmp.VarList(var)
data = list(session.walk(varl))
if len(data) == 0:
helper.exit(summary="snmpwalk failed - no data for host " + session.DestHost
+ " OID: " +oid
, exit_code=pynag.Plugins.unknown
, perfdata='')
for x in range(0, len(data)):
tag.append(varl[x].tag)
return data, tag
# make a snmp walk, but do not exit the plugin, if it returns nothing
# be careful! This function does not exit the plugin, if snmp walk fails!
def attempt_walk_data(session, oid):
tag = []
var = netsnmp.Varbind(oid)
varl = netsnmp.VarList(var)
data = list(session.walk(varl))
for x in range(0, len(data)):
tag.append(varl[x].tag)
return data, tag
def state_summary(value, name, state_list, helper, ok_value = 'ok', info = None):
"""
Always add the status to the long output, and if the status is not ok (or ok_value),
we show it in the summary and set the status to critical
"""
# translate the value (integer) we receive to a human readable value (e.g. ok, critical etc.) with the given state_list
state_value = state_list[int(value)]
summary_output = ''
long_output = ''
if not info:
info = ''
if state_value != ok_value:
summary_output += ('%s status: %s %s ' % (name, state_value, info))
helper.status(pynag.Plugins.critical)
long_output += ('%s status: %s %s\n' % (name, state_value, info))
return (summary_output, long_output)
def add_output(summary_output, long_output, helper):
"""
if the summary output is empty, we don't add it as summary, otherwise we would have empty spaces (e.g.: '. . . . .') in our summary report
"""
if summary_output != '':
helper.add_summary(summary_output)
helper.add_long_output(long_output)