分佈式icinga2安裝與使用

時間 2019-11-17

標籤分佈式 icinga2 icinga 安裝使用欄目系統架構简体版

原文原文鏈接

##目標配置分佈式的icinga2監控系統。分佈式監控適用於服務器遍及在多個區域，且須要一個master作統一管理。php

##搭建環境 ###服務器系統: ubuntu 15.04/ubuntu 14.04node

icinga2主節點: 192.168.19.77 負責分發配置，統一展現監控結果。mysql

icinga2子節點1: 192.168.19.45 負責監控openstack RegionOne區域的全部服務器linux

icinga2子節點2: 192.168.19.30 負責將空openstack RegionTwo區域的全部服務器ios

爲了充分利用現有的nagios插件，使用nrpe監控服務器。 ###拓撲圖 web

##安裝配置icinga2 注意: 若是特別說明，全部操做均在192.168.19.77,45,30執行。sql

###設置包源ubuntu

# add-apt-repository ppa:formorer/icinga
# apt-get update

###安裝icinga2vim

# apt-get install icinga2

##安裝classicui界面 在192.168.77上執行windows

apt-get install icinga2-classicui -y

##配置分佈式監控 ###設置ssl 在192.168.77上執行

####生成ca證書

#icinga2 pki new-ca

####生成各個節點須要用的key,crt #####設置節點名 key與crt的名字須要與節點名吻合，默認使用hostname。若是要自定義節點名須要編輯/etc/icinga2/constants.conf,修改以下配置

const NodeName = "node-master"

node-master是新的節點名

#####生成key,crt

# cd /tmp
##192.168.19.77
# icinga2 pki new-cert --cn node-master --key node-master.key --csr node-master.csr
# icinga2 pki sign-csr --csr node-master.csr --cert node-master.crt

##192.168.19.45
# icinga2 pki new-cert --cn node-45 --key node-45.key --csr node-45.csr
# icinga2 pki sign-csr --csr node-45.csr --cert node-45.crt

##192.168.19.30
# icinga2 pki new-cert --cn node-30 --key node-30.key --csr node-30.csr
# icinga2 pki sign-csr --csr node-30.csr --cert node-30.crt

分佈複製ca.crt,<node-name>.crt,<node-name>.key到3臺服務器的/etc/icinga2/pki/目錄。下面顯示的是192.168.19.77的pki目錄

# ll /etc/icinga2/pki/
total 20
drwxr-xr-x 2 root   root   4096 May 11 17:19 ./
drwxr-x--- 9 nagios nagios 4096 May 13 12:09 ../
-rw-rw-rw- 1 root   root   1688 May 11 15:25 ca.crt
-rw-rw-rw- 1 root   root   1663 May 11 15:28 node-master.crt
-rw-rw-rw- 1 root   root   3243 May 11 15:26 node-master.key

#####啓用api功能

# icinga2 feature enable api

添加accept_config = true, accept_commands = true參數

# vim /etc/icinga2/features-enabled/api.conf

/**
 * The API listener is used for distributed monitoring setups.
 */

object ApiListener "api" {
  cert_path = SysconfDir + "/icinga2/pki/" + NodeName + ".crt"
  key_path = SysconfDir + "/icinga2/pki/" + NodeName + ".key"
  ca_path = SysconfDir + "/icinga2/pki/ca.crt"

  ticket_salt = TicketSalt
  accept_config = true
  accept_commands = true
}

# service icinga2 restart

###配置endopoint,zone EndPoint 須要與NodeName一致。

# vim /etc/icinga2/zones.conf

object Endpoint "node-master" {
  host = "192.168.19.77"
}

object Endpoint "node-45" {
  host = "192.168.19.45"
}

object Endpoint "node-30" {
  host = "192.168.19.30"
}

object Zone "zone-master" {
  endpoints = [ "node-master" ]
}

object Zone "zone-45" {
  parent = "zone-master"
  endpoints = [ "node-45" ]
}

object Zone "zone-30" {
  parent = "zone-master"
  endpoints = [ "node-30" ]
}

object Zone "global-templates" {
  global = true
}

這裏配置了4個區域，分別是zone-master,zone-45,zone-30,global-templates。global-templates區域中的配置會分發到全部的區域。

###配置文件管理 ####建立配置目錄，目錄名要與區域名一致。 在192.168.77上執行

# mkdir /etc/icinga2/zones.d/global-templates/
# mkdir /etc/icinga2/zones.d/zone-30/
# mkdir /etc/icinga2/zones.d/zone-45/
# mkdir /etc/icinga2/zones.d/zone-master/

####將/etc/icinga2/conf.d中的文件複製到/etc/icinga2/zones.d/global-templates/

# cp -rf /etc/icinga2/conf.d/* /etc/icinga2/zones.d/global-templates/

####註釋掉3臺服務器上conf.d目錄

# vim /etc/icinga2/icinga2.conf

#include_recursive "conf.d"

####配置master監控兩個子節點

object Host NodeName {
  import "generic-host"

  address = "127.0.0.1"
  vars.os = "Linux"

  vars.disks["disk"] = {
  }

  vars.notification["mail"] = {
    groups = [ "icingaadmins" ]
  }

  /*NIC dell2950 */
  vars.interfaces["eth0"]={
    interface_speed = 100
  }
}

object Host "node-45" {
  import "generic-host"

  address = "192.168.19.45"
  vars.os = "Linux"

  vars.disks["disk"] = {
  }

  vars.notification["mail"] = {
    groups = [ "icingaadmins" ]
  }

  /*NIC*/
  vars.interfaces["em1"]={
    interface_speed = 1000
  }

  /* openstack */
  vars.openstack_controller_listen="192.168.19.45"
  vars.openstack["keystone"]="controller"
  vars.openstack["cinder"]="controller"
  vars.openstack["glance"]="controller"
  vars.openstack["heat"]="controller"
  vars.openstack["nova"]="controller"
}

object Host "node-30" {
  import "generic-host"

  address = "192.168.19.30"
  vars.os = "Linux"

  vars.disks["disk"] = {
  }

  vars.notification["mail"] = {
    groups = [ "icingaadmins" ]
  }

  /*NIC*/
  vars.interfaces["em1"]={
    interface_speed = 1000
  }
}

####清空緩存 # rm -rf /var/lib/icinga2/api/zones/*

####重啓icinga2，查看結果

# service icinga2 restart

打開http://192.168.19.77/icinga2-classicui/

配置正確的話，應該能夠看到77，45，39服務器的監控信息

##使用SNMP監控網絡 ###在icinga2服務端安裝監控插件參考: http://www.tontonitch.com/tiki/tiki-index.php?page=Nagios+plugins+-+interfacetable_v3t+-+documentation+-+0.05+-+Installation&structure=Nagios+plugins+-+interfacetable_v3t+-+documentation+-+0.05

安裝依賴

apt-get install snmpd sudo perl libconfig-general-perl libdata-dumper-simple-perl libsort-naturally-perl libexception-class-perl libencode-perl

文檔裏漏掉下面幾個包:

apt-get install libdata-dumper-simple-perl libsys-statistics-linux-perl libnet-snmp-perl

編譯安裝snmp網絡檢測程序

從http://www.tontonitch.com/tiki/tiki-index.php?page=Nagios+plugins+-+interfacetable_v3t下載最新的包，解壓進入目錄後:
```
./configure
	make fullinstall
```

測試

/usr/local/nagios/libexec/check_interface_table_v3t.pl -V

啓用icinga2監控腳本

cp /usr/share/icinga2/include/plugins-contrib.d/network-components.conf /etc/icinga2/zones.d/global-templates/

注意:

修改其中的command爲正確腳本路徑.

修改-C爲正確的值，默認是public.

應用檢測命令到主機上

# vim services.conf

	apply Service "network"{
	  import "generic-service"

	  display_name = "check network"
	  check_command = "interfacetable"
	  assign where host.vars.os == "Linux"
	}

###被監控端安裝配置SNMP服務

apt-get install snmpd snmp

修改監聽地址，鏈接串，且只容許icinga2服務端鏈接

# vim /etc/snmp/snmpd.conf

	agentAddress  udp:10.33.10.66:161
	rocommunity NmQwZmVmZT  10.33.10.84
	#註釋掉這行
	#rocommunity public  default    -V systemonly
	#註釋這行，它會監聽一個隨機端口
	#trapsink     localhost public

重啓snmpd服務 service snmpd restart

##使用nrpe監控服務器 ###源碼安裝不用apt的緣由是apt安裝的nrpe不接受監控命令傳參。

####建立nagios用戶

useradd nagios -M -s /bin/false

####編譯安裝

apt-get install build-essential libssl-dev libssl0.9.8 unzip make -y
cd /usr/local/src
wget http://sourceforge.net/projects/nagios/files/nrpe-2.x/nrpe-2.15/nrpe-2.15.tar.gz/download -O nrpe-2.15.tar.gz
tar -xf nrpe-2.15.tar.gz
cd nrpe-2.15
./configure --enable-command-args --with-ssl=/usr/bin/openssl --with-ssl-lib=/usr/lib/x86_64-linux-gnu
make all
make install-daemon

####安裝通用插件 apt-get install nagios-plugins -y

####添加配置文件

mkdir /etc/nagios
vim /etc/nagios/nrpe.cfg

log_facility=daemon
pid_file=/var/run/nrpe.pid
server_address=172.16.240.30
server_port=5666
nrpe_user=nagios
nrpe_group=nagios
allowed_hosts=127.0.0.1,172.16.240.30
dont_blame_nrpe=1
debug=0
command_timeout=60
connection_timeout=300

command[check_load]=/usr/lib/nagios/libexec/check_load -w 20,15,10 -c 50,40,30
command[check_disk]=/usr/lib/nagios/libexec/check_disk -w 10% -c 5% -W 10% -K 5% -A
command[check_mem]=/usr/lib/nagios/libexec/check_mem -u -C -w 85 -c 90
command[check_proc_num]=/usr/lib/nagios/libexec/check_procs -m PROCS -w 1500:1000 -c 300000:1500
command[check_zombie_procs]=/usr/lib/nagios/libexec/check_procs -w 5 -c 10 -s Z
command[check_swap]=/usr/lib/nagios/libexec/check_swap -a -w 30% -c 15%
command[check_local_port]=/usr/lib/nagios/libexec/check_tcp -H localhost -p $ARG1$ -w 2 -c 5
command[check_linux_raid]=/usr/lib/nagios/libexec/check_linux_raid
command[check_md_raid]=/usr/lib/nagios/libexec/check_md_raid
command[check_icmp]=/usr/lib/nagios/libexec/check_icmp $ARG1$
command[check_lvs]=/usr/lib/nagios/libexec/check_ipvsadm
command[check_backup]=/usr/lib/nagios/libexec/check_backup
command[check_dns]=/usr/lib/nagios/libexec/check_dns -H www.baidu.com
command[check_http]=/usr/lib/nagios/libexec/check_http
command[check_rsyncd]=/usr/lib/nagios/libexec/check_rsyncd
command[check_monitorwebbackup]=/usr/lib/nagios/libexec/check_monitorwebbackup
command[check_monitormysqlbackup]=/usr/lib/nagios/libexec/check_monitormysqlbackup
command[check_diskhealth]=/usr/lib/nagios/libexec/check_openmanage --check storage -b ctrl_fw=all/ctrl_driver=all/ctrl_stdr=all/bat_charge=all/encl=all/ps=all -t 30
command[check_safe]=/usr/lib/nagios/libexec/check_safe $ARG1$
command[check_tcptraffic]=/usr/lib/nagios/plugins/contrib/check_tcptraffic -w $ARG1$ -c $ARG2$ -s $ARG3$ -i $ARG4$
command[check_iostat_io]=/usr/lib/nagios/libexec/check_iostat -d $ARG1$ -i -p
command[check_iostat_waittime]=/usr/lib/nagios/libexec/check_iostat -d $ARG1$ -W -p
command[check_keystone_api]=/usr/lib/nagios/libexec/check_keystone --auth_url "http://$ARG1$:35357/v2.0" --username $ARG2$ --tenant $ARG3$ --password $ARG4$
command[check_keystone_proc]=/usr/lib/nagios/plugins/check_procs -c 1: -u keystone
command[check_cinder_api_proc]=/usr/lib/nagios/libexec/check_service.sh -o linux -s cinder-api
command[check_cinder_scheduler_proc]=/usr/lib/nagios/libexec/check_service.sh -o linux -s cinder-scheduler
command[check_cinder_api]=/usr/lib/nagios/libexec/check_cinder_api --auth_url "http://$ARG1$:35357/v2.0" --username $ARG2$ --tenant $ARG3$ --password $ARG4$
command[check_cinder_scheduler_connectivity]=/usr/lib/nagios/libexec/check_cinder-scheduler.sh

####在rc.local加入啓動命令

# vim /etc/rc.local

/usr/local/nagios/bin/nrpe -c /etc/nagios/nrpe.cfg -d

####從其餘服務器拷貝libexec文件夾例如: 221.228.84.84(無錫三線)

文件夾位置:/usr/lib/nagios/libexec

注意: 須要將check_icmp插件設置爲root用戶，而後設置setuid，否則沒權限執行命令:

chown root.root /usr/lib/nagios/libexec/check_icmp
chmod u+s /usr/lib/nagios/libexec/check_icmp
chmod g+s /usr/lib/nagios/libexec/check_icmp

####安裝check_tcptraffic插件 apt-get install libnagios-plugin-perl libreadonly-xs-perl -y

http://exchange.nagios.org/directory/Plugins/Network-Connections,-Stats-and-Bandwidth/check_tcptraffic/details 下載插件
在mac上解壓後用zip從新打包上傳到ubuntu，否則解壓會出錯
進入源碼目錄執行下面命令
```
perl Makefile.PL
	make
	make install
```

測試

/usr/lib/nagios/plugins/contrib/check_tcptraffic -w 10485760 -c 10485760 -s 1000 -i em1
	/usr/lib/nagios/plugins/check_nrpe -H 127.0.0.1 -c check_tcptraffic -p 5666 -a 10485760 20971520 1000 em1

####安裝dell磁盤監控

設置軟件源

echo 'deb http://linux.dell.com/repo/community/ubuntu trusty openmanage' | sudo tee -a /etc/apt/sources.list.d/linux.dell.com.sources.list
	gpg --keyserver pool.sks-keyservers.net --recv-key 1285491434D8786F
	gpg -a --export 1285491434D8786F | sudo apt-key add -

安裝

apt-get update
	apt-get install srvadmin-all

啓動服務

service dataeng start

####安裝iostat監控

安裝iostat apt-get install sysstat
(若是已有check_iostat腳本則忽略) 下載監控腳本到 /usr/lib/nagios/libexec/check_iostat,添加執行權限，所屬用戶和組改成nagios

注意：要下載評論裏的腳本，原始腳本有問題。
記得在icinga2的host裏配置里加入:
```
#check disk io and waittime
	vars.disk_device = "sdb"
```
修改sdb爲須要監控的硬盤

####啓動nrpe

# /usr/local/nagios/bin/nrpe -c /etc/nagios/nrpe.cfg -d

##在icinga2中啓用nrpe ###配置LibxecDir常量根據系統取消選擇相應的註釋:

# vim /etc/icinga2/constants.conf

//ubuntu
//const LibexecDir = "/usr/lib/nagios/libexec"

//youfu centos
//const LibexecDir = "/usr/local/nagios/libexec"

###配置checkcommand模板

# vim /etc/icinga2/zones.d/global-templates/nrpe_base.conf

template CheckCommand "nrpe-common" {
    import "plugin-check-command"

    command = [ LibexecDir + "/check_nrpe" ]

    arguments = {
        "-H" = "$nrpe_address$"
        "-t" = "$nrpe_timeout$"
        "-p" = "$nrpe_port$"
        "-c" = "$nrpe_command$"
        "-a" = {
            value = "$nrpe_args$"
            repeat_key = false
            order = 1
        }
    }

    vars.nrpe_address = "$address$"
    vars.nrpe_port = 5666
    vars.nrpe_timeout = 60
}

###配置經常使用linux檢測命令

# vim /etc/icinga2/zones.d/global-templates/nrpe_linux.conf

object CheckCommand "nrpe-disk" {
    import "nrpe-common"

    #vars.nrpe_args = [ "$disk_wfree$%", "$disk_cfree$%"]

    vars.nrpe_command = "check_disk"

    #vars.disk_wfree = 20
    #vars.disk_cfree = 10
}

object CheckCommand "nrpe-diskhealth" {
    import "nrpe-common"

    vars.nrpe_command = "check_diskhealth"
}

object CheckCommand "nrpe-tcptraffic" {
    import "nrpe-common"

    vars.nrpe_args = [ "$tcptraffic_wbytes$", "$tcptraffic_cbytes$","$interface_speed$","$interface_name$"]

    vars.nrpe_command = "check_tcptraffic"

    vars.tcptraffic_wbytes = 10485760 /*10M=10*1024*1024*/
    vars.tcptraffic_cbytes = 20971520 /*20M=20*1024*1024*/
    #vars.tcptraffic_wbytes = 1 /*10M=10*1024*1024*/
    #vars.tcptraffic_cbytes = 2 /*20M=20*1024*1024*/
}

object CheckCommand "nrpe-load" {
    import "nrpe-common"

    vars.nrpe_command = "check_load"
}

object CheckCommand "nrpe-mem" {
    import "nrpe-common"

    vars.nrpe_command = "check_mem"
}

object CheckCommand "nrpe-proc_num" {
    import "nrpe-common"

    vars.nrpe_command = "check_proc_num"
}

object CheckCommand "nrpe-zombie_procs" {
    import "nrpe-common"

    vars.nrpe_command = "check_zombie_procs"
}

object CheckCommand "nrpe-swap" {
    import "nrpe-common"

    vars.nrpe_command = "check_swap"
}

object CheckCommand "nrpe-dns" {
    import "nrpe-common"

    vars.nrpe_command = "check_dns"
}

object CheckCommand "nrpe-safe" {
    import "nrpe-common"

    vars.nrpe_command = "check_safe"
}

object CheckCommand "nrpe-iostat_io" {
    import "nrpe-common"

    vars.nrpe_command = "check_iostat_io"
    vars.nrpe_args = [ "$disk_device$" ]
}

object CheckCommand "nrpe-iostat_waittime" {
    import "nrpe-common"

    vars.nrpe_command = "check_iostat_waittime"
    vars.nrpe_args = [ "$disk_device$" ]
}

apply Service  "check_nrpe:" for (disk_nrpe_linux => config in host.vars.disks) {
  import "generic-service"

  display_name = "Check Nrpe:" + disk_nrpe_linux
  check_command = "nrpe-disk"

  vars += config
  assign where host.vars.os == "Linux"

}

#Storage Error! No controllers found on ubuntu15.04 dell r720
apply Service  "check_nrpe:diskhealth"{
  import "generic-service"

  display_name = "Check Nrpe: Diskhealth"
  check_command = "nrpe-diskhealth"
  assign where host.vars.os == "Linux"

}

apply Service  "check_nrpe:tcptraffic" for (interface_name =>interface_info in host.vars.interfaces){
  import "generic-service"

  display_name = "Check Nrpe: Tcptraffic "+ interface_name
  check_command = "nrpe-tcptraffic"

  vars.interface_name = interface_name
  vars+=interface_info

  assign where host.vars.interfaces && host.vars.os == "Linux"

}

apply Service  "check_nrpe:load"{
  import "generic-service"

  display_name = "Check Nrpe: Load"
  check_command = "nrpe-load"
  assign where host.vars.os == "Linux"

}

apply Service  "check_nrpe:mem"{
  import "generic-service"

  display_name = "Check Nrpe: Mem"
  check_command = "nrpe-mem"
  assign where host.vars.os == "Linux"

}

apply Service  "check_nrpe:proc_num"{
  import "generic-service"

  display_name = "Check Nrpe: proc_num"
  check_command = "nrpe-proc_num"
  assign where host.vars.os == "Linux"

}

apply Service  "check_nrpe:zombie_procs"{
  import "generic-service"

  display_name = "Check Nrpe: zombie_procs"
  check_command = "nrpe-zombie_procs"
  assign where host.vars.os == "Linux"

}

apply Service  "check_nrpe:swap"{
  import "generic-service"

  display_name = "Check Nrpe: swap"
  check_command = "nrpe-swap"
  assign where host.vars.os == "Linux"

}

apply Service  "check_nrpe:dns"{
  import "generic-service"

  display_name = "Check Nrpe: dns"
  check_command = "nrpe-dns"
  assign where host.vars.os == "Linux"

}

apply Service  "check_nrpe:safe"{
  import "generic-service"

  display_name = "Check Nrpe: safe"
  check_command = "nrpe-safe"
  assign where host.vars.os == "Linux"

}

apply Service  "check_nrpe:iostat_io"{
  import "generic-service"

  display_name = "Check Nrpe: iostat_io"
  check_command = "nrpe-iostat_io"
  vars.disk_device = host.vars.disk_device

  assign where host.vars.os == "Linux"

}

apply Service  "check_nrpe:iostat_waittime"{
  import "generic-service"

  display_name = "Check Nrpe: iostat_waittime"
  check_command = "nrpe-iostat_waittime"
  vars.disk_device = host.vars.disk_device

  assign where host.vars.os == "Linux"

}

###配置經常使用window檢測命令

# vim /etc/icinga2/zones.d/global-templates/nrpe_windows.conf

object CheckCommand "windows-nrpe-cpu" {
    import "nrpe-common"

    vars.nrpe_args = []

    vars.nrpe_command = "alias_cpu"
}

object CheckCommand "windows-nrpe-disk" {
    import "nrpe-common"

    vars.nrpe_args = []

    vars.nrpe_command = "alias_disk"
}

object CheckCommand "windows-nrpe-uptime" {
    import "nrpe-common"

    vars.nrpe_args = []

    vars.nrpe_command = "uptime"
}

object CheckCommand "windows-nrpe-mem" {
    import "nrpe-common"

    vars.nrpe_args = []

    vars.nrpe_command = "alias_mem"
}

apply Service  "windows_check_nrpe:cpu"{
  import "generic-service"

  display_name = "Windows-Check Nrpe: CPU"
  check_command = "windows-nrpe-cpu"
  assign where host.vars.os == "Windows"

}

apply Service  "windows_check_nrpe:disk"{
  import "generic-service"

  display_name = "Windows-Check Nrpe: Disk"
  check_command = "windows-nrpe-disk"
  assign where host.vars.os == "Windows"

}

apply Service  "windows_check_nrpe:uptime"{
  import "generic-service"

  display_name = "Windows-Check Nrpe: Uptime"
  check_command = "windows-nrpe-uptime"
  assign where host.vars.os == "Windows"

}

apply Service  "windows_check_nrpe:Mem"{
  import "generic-service"

  display_name = "Windows-Check Nrpe: Mem"
  check_command = "windows-nrpe-mem"
  assign where host.vars.os == "Windows"

}

###重載icinga2 在reload後，master會自動分發配置給兩個子節點，從而作到統一配置，統一分發。

# service icinga2 reload

url: /icinga2-classicui/

默認用戶: icingaadmin

###排錯

若是配置分佈式節點後發現沒法監控，或者global-templates配置沒有生效，能夠刪除/var/lib/icinga2/api/zones下的文件，而後重啓icinga2.
CHECK_NRPE: Error - Could not complete SSL handshake.: 查看·nrpe.cfg·的allowed_hosts配置項是否正確
check_iostat_*沒有數據：OK - I/O stats: Transfers/Sec= Read Requests/Sec= Write Requests/Sec= KBytes Read/Sec= KBytes_Written/Sec= ,sysstat包沒有安裝。