nginx配置支持nagios-fightering
配置前提：安装了nginx和php。并且php也安装了gd支持现在需要做的是让nagios在LNMP环境下也能运行
1.首先须需要安装依赖包
1.1.安装perl
Shell> yum install perl
1.2.安装perl fcgi模块
Shell> wget http://search.cpan.org/CPAN/authors/id/F/FL/FLORA/FCGI-0.74.tar.gz
Shell> perl Makefile.PL
Shell> make && make install
1.3.安装FCGI-ProcManager:
Shell> wget http://search.cpan.org/CPAN/authors/id/B/BO/BOBTFISH/FCGI-ProcManager-0.2
4.tar.gz
Shell> perl Makefile.PL
Shell> make && make install
1.4.安装perl-IO
Shell> wget http://search.cpan.org/CPAN/authors/id/G/GB/GBARR/IO-1.25.tar.gz
Shell> perl Makefile.PL
Shell> make && make install
1.5.安装perl-IO-ALL
Shell> wget http://search.cpan.org/CPAN/authors/id/I/IN/INGY/IO-All-0.39.tar.gz
Shell> perl Makefile.PL
Warning: prerequisite IO::String 0 not found.
Writing Makefile for IO::All
解决：
Shell> cpan IO::String
Shell> perl Makefile.PL
Writing Makefile for IO::All
Shell> make && make install
nagios中web界面为cgi程序，我们使用unixsocket来监听perl CGI请求并解析
2.运行perl脚本
2.1 Perl脚本用来产生perl的fast-cgi接口，让nginx以CGI的形式来处理perl
shell> cd /usr/local/nginx/sbin
Shell> mkdir logs && chown www.www logs --这里的www为nginx运行用户
Shell> wget http://addcn.googlecode.com/svn/trunk/conf/nagios/nginx-fcgi.pl
Shell> mv nginx-fcgi.pl perl-fcgi.pl
Shell> chmod 755 perl-fcgi.pl
Shell> cat perl-fcgi.pl
------------------------------------
#!/usr/bin/perl
#
# author DanielDominik Rudnicki
# thanks to:PiotrRomanczuk
# email daniel@sardzent.org
# version 0.4.3
# webpage http://www.nginx.eu/
#
# BASED @ http://wiki.codemongers.com/NginxSimpleCGI
#
#
useFCGI;
useGetopt::Long;
useIO::All;
useSocket;
subinit {
GetOptions( "h" => \$help,
"verbose!"=>\$verbose,
"pid=s" => \$filepid,
"l=s" => \$logfile,
"S:s" => \$unixsocket,
"P:i" => \$unixport) or usage();
usage() if $help;
print " StartingNginx-fcgi\n" if $verbose;
print " Runningwith $> UID" if $verbose;
print " Perl$]" if $verbose;
if ( $> == "0" ) {
print "\n\tERROR\tRunning as aroot!\n";
print "\tSuggested not to do so!!!\n\n";
exit 1;
}
if ( ! $logfile ) {
print "\n\tERROR\t log file mustdeclared\n"
. "\tuse $0 with option -lfilename\n\n";
exit 1;
}
print " Usinglog file $logfile\n" if $verbose;
"\n\n" >> io($logfile);
addlog($logfile, "StartingNginx-cfgi");
addlog($logfile, "Running with $>UID");
addlog($logfile, "Perl $]");
addlog($logfile, "Testing socketoptions");
if ( ($unixsocket && $unixport) ||(!($unixsocket) && !($unixport)) ) {
print "\n\tERROR\tOnly one optioncan be used!\n";
print "\tSuggested (beacuse ofspeed) is usage UNIX socket -S \n\n";
exit 1;
}
if ($unixsocket) {
print " Daemon listening at UNIX socket $unixsocket\n" if $versbose;
addlog($logfile, "Deamon listeningat UNIX socket $unixsocket");
} else {
print " Daemon listening at TCP/IP socket *:$unixport\n" if $verbose;
#
addlog($logfile, "Daemon listeningat TCP/IP socket *:$unixport");
}
if ( -e $filepid ) {
print "\n\tERROR\t PID file$filepid already exists\n\n";
addlog($logfile, "Can not use PIDfile $filepid, already exists.");
exit 1;
}
if ( $unixsocket ) {
print " Creating UNIX socket\n" if $verbose;
$socket = FCGI::OpenSocket( $unixsocket,10 );
if ( !$socket) {
print " Couldn't create socket\n";
addlog($logfile, "Couldn'tcreate socket");
exit 1;
}
print " Using UNIX socket $unixsocket\n" if $verbose;
} else {
print " Creating TCP/IP socket\n" if $verbose;
$portnumber = ":".$unixport;
$socket = FCGI::OpenSocket( $unixport,10 );
if ( !$socket ) {
print " Couldn't create socket\n";
addlog($logfile, "Couldn'tcreate socket");
exit 1;
}
print " Using port$unixport\n" if $verbose;
}
addlog($logfile, "Socketcreated");
if ( ! $filepid ) {
print "\n\tERROR\t PID file mustdeclared\n"
. "\tuse $0 with option -pidfilename\n\n";
exit 1;
}
print " UsingPID file $filepid\n" if $verbose;
addlog($logfile, "Using PID file$filepid");
my $pidnumber = $$;
$pidnumber > io($filepid);
print " PID number $$\n" if$verbose;
addlog($logfile, "PID number$pidnumber");
}
subaddzero {
my ($date) = shift;
if ($date < 10) {
return "0$date";
}
return $date;
}
sublogformat {
my($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$iddst) = localtime(time);
my $datestring;
$year += 1900;
$mon++;
$mon = addzero($mon);
$mday = addzero($mday);
$min = addzero($min);
$datestring = "$year-$mon-$mday$hour:$min";
return($datestring);
}
subaddlog {
my ($log_file, $log_message) = @_;
my $curr_time = logformat();
my $write_message = "[$curr_time] $log_message";
$write_message >> io($log_file);
"\n" >> io($log_file);
}
subprinterror {
my $message = @_;
print "\n Nginx FastCGI\tERROR\n"
. "\t $message\n\n";
exit 1;
}
subusage {
print "\n Nginx FastCGI \n"
. "\n\tusage: $0 [-h] -S string -Pint\n"
. "\n\t-h\t\t: this (help)message"
. "\n\t-S path\t\t: path for UNIXsocket"
. "\n\t-P port\t\t: portnumber"
. "\n\t-p file\t\t: path for pidfile"
. "\n\t-l file\t\t: path forlogfile"
. "\n\n\texample: $0 -S/var/run/nginx-perl_cgi.sock -l /var/log/nginx/nginx-cfgi.log -pid/var/run/nginx-fcgi.pid\n\n";
exit 1;
}
init;
#
END(){ } BEGIN() { }
*CORE::GLOBAL::exit= sub { die "fakeexit\nrc=".shift()."\n"; }; eval q{exit};
if($@) {
exit unless $@ =~ /^fakeexit/;
} ;
# forkpart
my$pid = fork();
if($pid == 0 ) {
&main;
exit 0;
}
print" Forking worker process with PID $pid\n" if $verbose;
addlog($logfile,"Forking worker process with PID $pid");
print" Update PID file $filepid\n" if $verbose;
addlog($logfile,"Update PID file $filepid");
$pid> io($filepid);
print" Worker process running.\n" if$verbose;
addlog($logfile, "Parent process $$ is exiting");
exit0;
submain {
$request = FCGI::Request( \*STDIN, \*STDOUT,\*STDERR, \%req_params, $socket );
if ($request) { request_loop()};
FCGI::CloseSocket( $socket );
}
subrequest_loop {
while( $request->Accept() >= 0 ) {
# processing any STDIN input fromWebServer (for CGI-POST actions)
$stdin_passthrough = '';
$req_len = 0 +$req_params{'CONTENT_LENGTH'};
if (($req_params{'REQUEST_METHOD'} eq'POST') && ($req_len != 0) ){
while ($req_len) {
$stdin_passthrough .=getc(STDIN);
$req_len--;
}
}
# running the cgi app
if ( (-x $req_params{SCRIPT_FILENAME})&&
(-s $req_params{SCRIPT_FILENAME})&&
(-r $req_params{SCRIPT_FILENAME})
){
foreach $key ( keys %req_params){
$ENV{$key} = $req_params{$key};
}
if ( $verbose ) {
addlog($logfile, "running $req_params{SCRIPT_FILENAME}");
}
#http://perldoc.perl.org/perlipc.html#Safe-Pipe-Opens
#
open $cgi_app, '-|',$req_params{SCRIPT_FILENAME}, $stdin_passthrough or print("Content-type:text/plain\r\n\r\n"); print "Error: CGI app returned no output -Executing $req_params{SCRIPT_FILENAME} failed !\n"; # addlog($logfile,"Error: CGI app returned no output - Executing$req_params{SCRIPT_FILENAME} failed !");
if ($cgi_app) {
print ;
close $cgi_app;
}
} else {
print("Content-type:text/plain\r\n\r\n");
print "Error: No such CGI app -$req_params{SCRIPT_FILENAME} may not exist or is not executable by thisprocess.\n";
addlog($logfile, "Error: Nosuch CGI app - $req_params{SCRIPT_FILENAME} may not exist or is not executableby this process.");
}
}
}
--------------------------------------------------------------------
2.2.建立一个CGI启动/停止脚本
Shell>pwd
/usr/local/nginx/sbin
Shell> vim start_perl_cgi.sh
-----------------------------------
#!/bin/bash
#set -x
dir=/usr/local/nginx/sbin
stop()
{
#pkill-f $dir/perl-fcgi.pl
kill $(cat $dir/logs/perl-fcgi.pid)
rm $dir/logs/perl-fcgi.pid 2>/dev/null
rm $dir/logs/perl-fcgi.sock 2>/dev/null
echo "stop perl-fcgi done"
}
start()
{
rm $dir/now_start_perl_fcgi.sh 2>/dev/null
chown www.www $dir/logs
echo "$dir/perl-fcgi.pl -l $dir/logs/perl-fcgi.log -pid $dir/logs/perl-fcgi.pid-S $dir/logs/perl-fcgi.sock" >> $dir/now_start_perl_fcgi.sh
chown www.www $dir/now_start_perl_fcgi.sh
chmod u+x $dir/now_start_perl_fcgi.sh
sudo -u www $dir/now_start_perl_fcgi.sh
echo "start perl-fcgi done"
}
case $1 in
stop)
stop
;;
start)
start
;;
restart)
stop
start
;;
esac
-----------------------------------------------------------------------
2.3.启动脚本
Shell>chmod 755 /usr/local/nginx/sbin/start_perl_cgi.sh
Shell>cd /usr/local/nginx/sbin
Shell>./start_perl_cgi.sh start
Shell> ls logs –lh #检查文件是否存在
perl-fcgi.log perl-fcgi.pidperl-fcgi.sock
1.9.配置nginx作为web服务器
Shell> vim /usr/local/nginx/conf/nginx.conf
includevirtual/nagios.web.com.conf; #web服务器
shell> cd cd/usr/local/nginx/conf/virtual
shell> cat nagios.web.com.conf
-----------------------------------------------------------
server{
listen 9180;
index index.php index.html index.htm;
root /data/monitor/nagios/share;
location ~ \.php$ {
root /data/monitor/nagios/share;
fastcgi_pass 127.0.0.1:9000;
fastcgi_indexindex.php;
include fastcgi.conf;
}
location /nagios/ {
alias /data/monitor/nagios/share/;
index index.php index.htm index.html;
}
location ~ .*\.(cgi|pl)?$ {
gzip off;
root /data/monitor/nagios/sbin;
rewrite ^/nagios/cgi-bin/(.*)\.cgi/$1.cgi break;
fastcgi_pass unix:/usr/local/nginx/sbin/logs/perl-fcgi.sock;
#fastcgi_pass 127.0.0.1:8999;
fastcgi_param REMOTE_USER $remote_user;
fastcgi_index index.cgi;
fastcgi_read_timeout 60;
fastcgi_param SCRIPT_FILENAME/data/monitor/nagios/sbin$fastcgi_script_name;
fastcgi_param HTTP_ACCEPT_LANGUAGEzh-cn;
include fastcgi_params;
include fastcgi.conf;
}
}
server{
listen 80;
server_name nagios.medees.com;
charset utf-8;
access_log logs/nagios.access.logmain;
index index.php index.html;
location / {
proxy_pass http://127.0.0.1:9180;
proxy_set_header HOST $host;
proxy_set_header X-Real-IP$remote_addr;
proxy_set_header X-Forwarded-For$proxy_add_x_forwarded_for;
}
location /server-status {
stub_status on;
access_log off;
}
}
--------------------------------------------
1.11.重启nginx服务器
Shell>/etc/init.d/nginx configtest
Shell>/etc/init.d/nginx restart
Shell>/etc/init.d/nagios checkconfig
Shell>/etc/init.d/nagios restart
#浏览器访问nagios.medees.com,输入用户名，密码
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