Linux下用Nginx作Perl程序服务器及其中Perl模块的配置

perl + fastcgi + nginx搭建

nginx + fastcgi是php下最流行的一套环境了，那perl会不会也有fastcgi呢，当然有，今天来搭建下nginx下perl的fastcgi.性能方面也不亚于php，但是现在web程序php的流行程度perl无法比拟了，性能再好也枉然，但是部分小功能可以考虑使用perl的fastcgi来搞定.进入正题.
1. 准备软件环境：

nginx：http://www.nginx.org
perl：系统自带
fastcgi：http://www.cpan.org/modules/by-module/FCGI/
1.1 nginx安装
这里就不再详细介绍了~
1.2 perl安装
一般linux都有自带perl，可以不用安装，如果确实没有，请执行：

# yum install perl

1.3 perl-fastcgi安装

# cd /usr/local/src
# wget http://www.cpan.org/modules/by-module/FCGI/FCGI-0.74.tar.gz
# tar -xzvf FCGI-0.74.tar.gz
# cd FCGI-0.74
# perl Makefile.PL 
# make
# make install

2. nginx虚拟主机配置

server {
 
  listen  80;
  server_name test.jb51.net;
  #access_log /data/logs/nginx/test.jb51.net.access.log main;
 
  index index.html index.php index.html;
  root /data/site/test.jb51.net;
 
  location / 
  {
 
  }
 
  location ~ .pl$ 
  {
   include fastcgi_params;
   fastcgi_pass 127.0.0.1:8999;
   #fastcgi_pass unix:/var/run/jb51.net.perl.sock;
   fastcgi_index index.pl;
  }
}

如果想把tcp/ip方式改为socket方式，可以修改fastcgi-wrapper.pl.

$socket = FCGI::OpenSocket( "127.0.0.1:8999", 10 ); #use IP sockets

改为

$socket = FCGI::OpenSocket( "/var/run/jb51.net.perl.sock", 10 ); #use IP sockets

3. 配置脚本

3.1 fastcgi监听脚本
文件路径：/usr/bin/fastcgi-wrapper.pl

#!/usr/bin/perl
 
use FCGI;
use Socket;
use POSIX qw(setsid);
 
require 'syscall.ph';
 
&daemonize;
 
#this keeps the program alive or something after exec'ing perl scripts
END() { } BEGIN() { }
*CORE::GLOBAL::exit = sub { die "fakeexitnrc=".shift()."n"; };
eval q{exit};
if ($@) {
 exit unless $@ =~ /^fakeexit/;
};
 
&main;
 
sub daemonize() {
 chdir '/'     or die "Can't chdir to /: $!";
 defined(my $pid = fork) or die "Can't fork: $!";
 exit if $pid;
 setsid     or die "Can't start a new session: $!";
 umask 0;
}
 
sub main {
  $socket = FCGI::OpenSocket( "127.0.0.1:8999", 10 ); #use IP sockets
  $request = FCGI::Request( *STDIN, *STDOUT, *STDERR, %req_params, $socket );
  if ($request) { request_loop()};
   FCGI::CloseSocket( $socket );
}
 
sub request_loop {
  while( $request->Accept() >= 0 ) {
 
   #processing any STDIN input from WebServer (for CGI-POST actions)
   $stdin_passthrough ='';
   $req_len = 0 + $req_params{'CONTENT_LENGTH'};
   if (($req_params{'REQUEST_METHOD'} eq 'POST') && ($req_len != 0) ){
    my $bytes_read = 0;
    while ($bytes_read < $req_len) {
      my $data = '';
      my $bytes = read(STDIN, $data, ($req_len - $bytes_read));
      last if ($bytes == 0 || !defined($bytes));
      $stdin_passthrough .= $data;
      $bytes_read += $bytes;
    }
   }
 
   #running the cgi app
   if ( (-x $req_params{SCRIPT_FILENAME}) && #can I execute this?
     (-s $req_params{SCRIPT_FILENAME}) && #Is this file empty?
     (-r $req_params{SCRIPT_FILENAME})  #can I read this file?
   ){
  pipe(CHILD_RD, PARENT_WR);
  my $pid = open(KID_TO_READ, "-|");
  unless(defined($pid)) {
   print("Content-type: text/plainrnrn");
      print "Error: CGI app returned no output - ";
      print "Executing $req_params{SCRIPT_FILENAME} failed !n";
   next;
  }
  if ($pid > 0) {
   close(CHILD_RD);
   print PARENT_WR $stdin_passthrough;
   close(PARENT_WR);
 
   while(my $s = <KID_TO_READ>) { print $s; }
   close KID_TO_READ;
   waitpid($pid, 0);
  } else {
     foreach $key ( keys %req_params){
      $ENV{$key} = $req_params{$key};
     }
     # cd to the script's local directory
     if ($req_params{SCRIPT_FILENAME} =~ /^(.*)/[^/]+$/) {
       chdir $1;
     }
 
   close(PARENT_WR);
   close(STDIN);
   #fcntl(CHILD_RD, F_DUPFD, 0);
   syscall(&SYS_dup2, fileno(CHILD_RD), 0);
   #open(STDIN, "<&CHILD_RD");
   exec($req_params{SCRIPT_FILENAME});
   die("exec failed");
  }
   }
   else {
    print("Content-type: text/plainrnrn");
    print "Error: No such CGI app - $req_params{SCRIPT_FILENAME} may not ";
    print "exist or is not executable by this process.n";
   }
 
  }
}
								 
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