Nginx巡检脚本

Nginx巡检脚本

nginx_check.sh #健康检查的主脚本

start.sh #运行检查脚本并将结果输出到日志文件

result.log #脚本执行后的示例输出结果

脚本内nginx的安装目录如下，如需修改请自行修改脚本第 15 行

#nginx_home=/home/nginx/nginx

可以通过查询环境变量关于nginx的路径来修改

nginx_check.sh

#!/bin/bash
##############################################################
# File Name: nginx_check.sh
# Version: V1.0
# Author: houtuo
# Mail: tuo.hou@rklink.cn
# Created Time : 2019-04-16 10:10:30
# Description: nginx health check
##############################################################

# 加载操作系统环境
source /etc/profile
# 统一使用英文的UTF-8字符集
export LANG=en_US.UTF-8
date_time=`date +%F`
nginx_home=/home/nginx/nginx

function get_system_status(){
echo ""
echo -e "*******************************系统检查*****************************************"
if [ -e /etc/sysconfig/i18n ];then
default_LANG="$(grep "LANG=" /etc/sysconfig/i18n | grep -v "^#" | awk -F '"' '{print $2}')"
else
default_LANG=$LANG
fi
if [ -f /etc/redhat-release ];then
Release=$(cat /etc/redhat-release 2>/dev/null)
fi

if [ -f /etc/SuSE-release ];then
Release=$(cat /etc/SuSE-release |head -3|sed 's/,/\n/g'|awk '{{printf"%s ",$0}}' 2>/dev/null)
fi
Kernel=$(uname -r)
OS=$(uname -o)
Hostname=$(uname -n)
if [ -f /etc/redhat-release ];then
SELinux=$(/usr/sbin/sestatus | grep "SELinux status: " | awk '{print $3}')
else
SELinux=""
fi
LastReboot=$(who -b | awk '{print $3,$4}')
uptime=$(uptime | sed 's/.*up \([^,]*\), .*/\1/')
echo " 系统：$OS"
echo " 发行版本：$Release"
echo " 内核：$Kernel"
echo " 主机名：$Hostname"
echo " SELinux：$SELinux"
echo "语言/编码：$default_LANG"
echo " 当前时间：$(date +'%F %T')"
echo " 最后启动：$LastReboot"
echo " 运行时间：$uptime"
}

function get_cpu_status(){
echo ""
echo -e "*******************************************************CPU检查*******************************************"
Physical_CPUs=$(grep "physical id" /proc/cpuinfo| sort | uniq | wc -l)
Virt_CPUs=$(grep "processor" /proc/cpuinfo | wc -l)
CPU_Kernels=$(grep "cores" /proc/cpuinfo|uniq| awk -F ': ' '{print $2}')
CPU_Type=$(grep "model name" /proc/cpuinfo | awk -F ': ' '{print $2}' | sort | uniq)
CPU_Arch=$(uname -m)
echo "物理CPU个数:$Physical_CPUs"
echo "逻辑CPU个数:$Virt_CPUs"
echo "每CPU核心数:$CPU_Kernels"
echo "CPU型号:$CPU_Type"
echo "CPU架构:$CPU_Arch"
echo ""
/usr/bin/vmstat 1 5
}

function get_mem_status(){
echo ""
echo -e "*******************************************************Memory检查***************************************"
/usr/bin/free -m
}

function get_proc_status(){
echo ""
echo -e "*******************************************************进程检查********************************************"
if [ $(ps -ef | grep defunct | grep -v grep | wc -l) -ge 1 ];then
echo ""
echo "僵尸进程";
echo "--------"
ps -ef | head -n1
ps -ef | grep defunct | grep -v grep
fi
echo ""
echo "内存占用TOP10"
echo "-------------"
echo -e "PID %MEM RSS COMMAND
$(ps aux | awk '{print $2, $4, $6, $11}' | sort -k3rn | head -n 10 )"| column -t
echo ""
echo "CPU占用TOP10"
echo "------------"
top b -n1 | head -17 | tail -11
}

function get_disk_status(){
echo ""
echo -e "*******************************************************Disk检查********************************************"
/bin/df -hiP | sed 's/Mounted on/Mounted/'> ./inode
/bin/df -hTP | sed 's/Mounted on/Mounted/'> ./disk
/usr/bin/join ./disk ./inode | awk '{print $1,$2,"|",$3,$4,$5,$6,"|",$8,$9,$10,$11,"|",$12}'| column -t
[ -f ./disk ] && rm -f ./disk
[ -f ./inode ] && rm -f ./inode
}

function get_ulimit(){
echo ""
echo -e "*******************************************************Ulimit检查******************************************"
ulimit -a
}

function get_listener_status(){
echo ""
echo -e "*******************************************************监听检查********************************************"
TCPListen=$(ss -ntul | column -t)
echo "$TCPListen"
}

function get_kernel_conf(){
echo ""
echo -e "*******************************************************Kernel检查*****************************************"
for a in vm.swappiness fs.file-max net.ipv4.tcp_keepalive_time net.ipv4.tcp_keepalive_probes net.ipv4.ip_local_port_range
do
echo "$a = `sysctl -n $a`"
done

}

function get_nginx_version(){
echo ""
echo -e "*******************************************************Nginx Version检查*********************************"
$nginx_home/sbin/nginx -V 2>&1
}

function get_nginx_conf(){
echo ""
echo -e "*******************************************************Nginx Config检查**********************************"
cat $nginx_home/conf/nginx.conf|grep -Ev "#|^$"
\cp -ar $nginx_home/conf ./conf_`hostname`
}

function main(){
get_system_status
get_cpu_status
get_mem_status
get_proc_status
get_disk_status
get_listener_status
get_ulimit
get_kernel_conf
get_nginx_version
get_nginx_conf
}

# 调用main函数
main

start.sh

#!/bin/bash
##############################################################
# File Name: start.sh
# Version: V1.0
# Author: houtuo
# Mail: tuo.hou@rklink.cn
# Created Time : 2019-04-16 10:10:30
# Description: nginx health check
##############################################################

# 加载操作系统环境
source /etc/profile
# 统一使用英文的UTF-8字符集
export LANG=en_US.UTF-8
sh nginx_check.sh > result.log

result.log(示例)

*******************************************************系统检查 ******************************************************
系统：GNU/Linux
发行版本：Red Hat Enterprise Linux release 8.4 (Ootpa)
内核：4.18.0-305.el8.x86_64
主机名：fileserver
SELinux：disabled
语言/编码：en_US.UTF-8
当前时间：2022-05-14 14:58:21
最后启动：2022-05-14 14:44
运行时间：14 min

*******************************************************CPU检查******************************************************
物理CPU个数:4
逻辑CPU个数:4
每CPU核心数:1
CPU型号:Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
CPU架构:x86_64

procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu-----
r b swpd free buff cache si so bi bo in cs us sy id wa st
0 0 0 5663356 3240 314820 0 0 69 18 126 155 1 2 97 0 0
0 0 0 5663332 3240 314832 0 0 0 29 289 408 0 0 99 0 0
0 0 0 5663332 3240 314832 0 0 0 34 307 438 0 0 100 0 0
0 0 0 5663332 3240 314832 0 0 0 0 258 403 0 0 100 0 0
0 0 0 5663332 3240 314832 0 0 0 0 263 429 0 0 100 0 0

*******************************************************Memory检查***************************************************
total used free shared buff/cache available
Mem: 7741 1900 5530 52 310 5549
Swap: 8191 0 8191

*******************************************************进程检查*******************************************************

僵尸进程
--------
UID PID PPID C STIME TTY TIME CMD
awx 1653 1494 0 14:44 ? 00:00:01 [python3] <defunct>

内存占用TOP10
-------------
PID %MEM RSS COMMAND
1506 1.6 132756 python3
1494 1.6 131092 python3
1495 1.6 129816 python3
2642 1.5 122864 python3
1656 1.5 122168 python3
1654 1.5 122060 python3
1655 1.5 122020 python3
1648 1.5 120188 python3
1548 1.5 119312 /var/lib/awx/venv/awx/bin/uwsgi
1551 1.5 119312 /var/lib/awx/venv/awx/bin/uwsgi

CPU占用TOP10
------------
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3280 nginx 20 0 65548 4940 4116 R 6.2 0.1 0:00.01 top
1 root 20 0 183680 11256 8716 S 0.0 0.1 0:02.68 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:00.02 kthreadd
3 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 rcu_gp
4 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 rcu_par_gp
6 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 kworker/0:0H-events_highpri
9 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 mm_percpu_wq
10 root 20 0 0 0 0 S 0.0 0.0 0:00.03 ksoftirqd/0
11 root 20 0 0 0 0 I 0.0 0.0 0:00.55 rcu_sched
12 root rt 0 0 0 0 S 0.0 0.0 0:00.00 migration/0

*******************************************************Disk检查*******************************************************
Filesystem Type | Size Used Avail Use% | Inodes IUsed IFree IUse% | Mounted
devtmpfs devtmpfs | 3.8G 0 3.8G 0% | 964K 398 963K 1% | /dev
tmpfs tmpfs | 3.8G 196K 3.8G 1% | 968K 44 968K 1% | /dev/shm
tmpfs tmpfs | 3.8G 196K 3.8G 1% | 968K 696 968K 1% | /run
tmpfs tmpfs | 3.8G 196K 3.8G 1% | 968K 17 968K 1% | /sys/fs/cgroup
tmpfs tmpfs | 3.8G 9.0M 3.8G 1% | 968K 44 968K 1% | /dev/shm
tmpfs tmpfs | 3.8G 9.0M 3.8G 1% | 968K 696 968K 1% | /run
tmpfs tmpfs | 3.8G 9.0M 3.8G 1% | 968K 17 968K 1% | /sys/fs/cgroup
tmpfs tmpfs | 3.8G 0 3.8G 0% | 968K 44 968K 1% | /dev/shm
tmpfs tmpfs | 3.8G 0 3.8G 0% | 968K 696 968K 1% | /run
tmpfs tmpfs | 3.8G 0 3.8G 0% | 968K 17 968K 1% | /sys/fs/cgroup
/dev/mapper/vgroot-lvroot xfs | 138G 5.4G 133G 4% | 69M 184K 69M 1% | /
/dev/sda1 xfs | 4.0G 216M 3.8G 6% | 2.0M 309 2.0M 1% | /boot
/dev/mapper/vgdata-lvdata xfs | 20G 11G 9.5G 53% | 10M 8.0K 10M 1% | /home/nginx
tmpfs tmpfs | 775M 0 775M 0% | 968K 6 968K 1% | /run/user/0

*******************************************************监听检查*******************************************************
Netid State Recv-Q Send-Q Local Address:Port Peer Address:PortProcess
udp UNCONN 0 0 127.0.0.1:323 0.0.0.0:*
udp UNCONN 0 0 [::1]:323 [::]:*
tcp LISTEN 0 128 0.0.0.0:80 0.0.0.0:*
tcp LISTEN 0 128 0.0.0.0:22 0.0.0.0:*
tcp LISTEN 0 128 0.0.0.0:5432 0.0.0.0:*
tcp LISTEN 0 128 127.0.0.1:6010 0.0.0.0:*
tcp LISTEN 0 128 0.0.0.0:443 0.0.0.0:*
tcp LISTEN 0 128 [::]:80 [::]:*
tcp LISTEN 0 128 [::]:22 [::]:*
tcp LISTEN 0 128 [::]:5432 [::]:*
tcp LISTEN 0 128 [::1]:6010 [::]:*
tcp LISTEN 0 128 [::]:443 [::]:*

*******************************************************Ulimit检查*****************************************************
core file size (blocks, -c) unlimited
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 30817
max locked memory (kbytes, -l) 64
max memory size (kbytes, -m) unlimited
open files (-n) 65535
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 65535
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited

*******************************************************Kernel检查****************************************************
vm.swappiness = 10
fs.file-max = 2000000
net.ipv4.tcp_keepalive_time = 300
net.ipv4.tcp_keepalive_probes = 9
net.ipv4.ip_local_port_range = 1024 65535

*******************************************************Nginx Version检查********************************************
nginx version: nginx/1.20.2
built by gcc 8.4.1 20200928 (Red Hat 8.4.1-1) (GCC)
built with OpenSSL 1.1.1g FIPS 21 Apr 2020
TLS SNI support enabled
configure arguments: --prefix=/home/nginx/nginx-1.20.2 --user=nginx --group=nginx --with-http_ssl_module --with-http_stub_status_module

*******************************************************Nginx Config检查*********************************************
worker_processes 1;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
server {
listen 80;
server_name localhost;
location / {
root html;
index index.html index.htm;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
}

这里在一台装了nginx主机上测试结果