本篇内容介绍了“Linux下如何用Nginx作Perl程序服务器及其中Perl模块”的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧！希望大家仔细阅读，能够学有所成！
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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
perl：系统自带
fastcgi
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
$socket = fcgi::opensocket( "/var/run/jb51.net.perl.sock", 10 ); #use ip sockets
3. 配置脚本
3.1 fastcgi监听脚本
文件路径：/usr/bin/fastcgi-wrapper.pl
#!/usr/bin/perl
use fcgi;
use socket;
use posix qw(setsid);
require 'syscall.ph';
&daemonize;
#this keeps the program alive or something after exec'ing perl scripts
end() { } begin() { }
*core::global::exit = sub { die "fakeexit\nrc=".shift()."\n"; };
eval q{exit};
if ($@) {
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/plain\r\n\r\n");
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 = ) { 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/plain\r\n\r\n");
print "error: no such cgi app - $req_params{script_filename} may not ";
print "exist or is not executable by this process.\n";
}
}
}3.2 fastcgi自启动服务脚本：
文件路径：/etc/rc.d/init.d/perl-fastcgi
文件路径：/etc/rc.d/init.d/perl-fastcgi
#!/bin/sh
#
# nginx – this script starts and stops the nginx daemon
#
# chkconfig: - 85 15
# description: nginx is an http(s) server, http(s) reverse \
# proxy and imap/pop3 proxy server
# processname: nginx
# config: /opt/nginx/conf/nginx.conf
# pidfile: /opt/nginx/logs/nginx.pid
# source function library.
. /etc/rc.d/init.d/functions
# source networking configuration.
. /etc/sysconfig/network
# check that networking is up.
[ "$networking" = "no" ] && exit 0
perlfastcgi="/usr/bin/fastcgi-wrapper.pl"
prog=$(basename perl)
lockfile=/var/lock/subsys/perl-fastcgi
start() {
[ -x $perlfastcgi ] || exit 5
echo -n $"starting $prog: "
daemon $perlfastcgi
retval=$?
echo
[ $retval -eq 0 ] && touch $lockfile
return $retval
}
stop() {
echo -n $"stopping $prog: "
killproc $prog -quit
retval=$?
echo
[ $retval -eq 0 ] && rm -f $lockfile
return $retval
}
restart() {
stop
start
}
reload() {
echo -n $”reloading $prog: ”
killproc $nginx -hup
retval=$?
echo
}
force_reload() {
restart
}
rh_status() {
status $prog
}
rh_status_q() {
rh_status >/dev/null 2>&1
}
case "$1" in
start)
rh_status_q && exit 0
$1
;;
stop)
rh_status_q || exit 0
$1
;;
restart)
$1
;;
reload)
rh_status_q || exit 7
$1
;;
force-reload)
force_reload
;;
status)
rh_status
;;
condrestart|try-restart)
rh_status_q || exit 0
;;
*)
echo $"usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload}"
exit 2
esac3.3 设置脚本权限
# chmod a+x /usr/bin/fastcgi-wrapper.pl
# chmod a+x /etc/rc.d/init.d/perl-fastcgi
4. fastcgi测试
4.1 启动nginx与fastcgi
# /usr/local/nginx-1.4.2/sbin/nginx
# /etc/init.d/perl-fastcgi start
4.2 perl测试文件：
文件路径/data/site/test.jb51.net/test.pl
#!/usr/bin/perl
print "content-type:text/html\n\n";
print <perl environment variables
perl environment variables
endofhtml
foreach $key (sort(keys %env)) {
print "$key = $env{$key}
\n";
}
print "
