puppet负载均衡之nginx+passenger

2980315

　　由于3.x系列已不再支持mongrel，所以就采用nginx+passenger来做负载均衡；之前有发过nginx+mongrel，puppet version是2.7系列的，所以还是可以用的；
　　环境说明：
　　操作系统：centos 5.8 64位
　　puppet版本：3.1系列

1，升级ruby至1.8.7，安装rubygems   
# rpm -Uvh http://rbel.frameos.org/rbel5   
# yum install -y ruby rubygems ruby-devel.x86_64   
2,安装puppet server   
# rpm -ivh http://yum.puppetlabs.com/el/5/products/x86_64/puppetlabs-release-5-1.noarch.rpm   
# yum install -y puppet puppet-server   
3，安装nginx相关的依赖包   
# yum install -y gcc make pcre-devel zlib-devel openssl-devel pam-devel curl-devel rpm-build   
4安装rake, rack and passenger ruby gems   
# gem install rake rack passenger --no-rdoc --no-ri   
5，安装nginx   
编译参数如下，必须包含passenger模块   
# tar -xjf pcre-8.32.tar.bz2 -C /usr/local/src   ----pcre自己下载   
# tar -xzf nginx-1.2.1.tar.gz -C /usr/local/src  ----解压nginx   
cd /usr/local/src/nginx-1.2.1   
./configure --prefix=$NGINX_PATH --with-   http_stub_status_module --with-http_ssl_module --with-pcre=/usr/local/src/pcre-8.32 --add-module=`passenger-config --root`/ext/nginx   
# make   
# make install   
6,与passenger的结合   
# mkdir -p /etc/puppet/rack/public   
# cp /usr/share/puppet/ext/rack/files/config.ru /etc/puppet/rack/   
# chown -R puppet:puppet /etc/puppet/rack/   
# nginx.conf里面具体的内容如下   

user www www;   
worker_processes  1;   
error_log  /usr/local/nginx/logs/error.log;   
#error_log  logs/error.log  notice;   
#error_log  logs/error.log  info;   
pid        /usr/local/nginx/nginx.pid;   
#Specifies the value for maximum file descriptors that can be opened by this process.   
worker_rlimit_nofile 65535;   
events {   
use epoll;   
worker_connections  65535;   
}   
http {   
server_tokens off;   
include       mime.types;   
default_type  application/octet-stream;   
log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';   
#access_log  logs/access.log  main;   
charset utf-8;   
server_names_hash_bucket_size 128;   
client_header_buffer_size 32k;   
large_client_header_buffers 4 64k;   
client_max_body_size 8m;   
tcp_nopush     on;   
tcp_nodelay on;   
keepalive_timeout 60;   
fastcgi_intercept_errors on;   
fastcgi_connect_timeout 300;   
fastcgi_send_timeout 300;   
fastcgi_read_timeout 300;   
fastcgi_buffer_size 64k;   
fastcgi_buffers 4 64k;   
fastcgi_busy_buffers_size 128k;   
fastcgi_temp_file_write_size 128k;   
open_file_cache max=65535 inactive=10s;   
open_file_cache_valid 30s;   
open_file_cache_min_uses 1;   
gzip on;   
gzip_min_length  1k;   
gzip_buffers     4 16k;   
gzip_http_version 1.0;   
gzip_comp_level 2;   
gzip_types       text/plain application/x-javascript text/css application/xml;   
gzip_vary on;   
# Passenger needed for puppet   
passenger_root  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.19;   
passenger_ruby  /usr/bin/ruby;   
passenger_max_pool_size 15;   
index index.html index.htm index.php;   
server {   
listen       80;   
server_name  localhost;   
#access_log  logs/host.access.log  main;   
location / {   
root   html;   
index  index.php index.html index.htm ;   
}   
error_page   500 502 503 504  /50x.html;   
location = /50x.html {   
root   html;   
}   
location ~ .php$ {   
root           html;   
#fastcgi_pass   127.0.0.1:9000;   
fastcgi_pass unix:/dev/shm/php.socket;   
fastcgi_index  index.php;   
fastcgi_param  SCRIPT_FILENAME  $document_root/$fastcgi_script_name;   
include        fastcgi_params;   
}   
}   
server {   
listen                     8140 ssl;   
server_name                client.domain.com;   
passenger_enabled          on;   
passenger_set_cgi_param    HTTP_X_CLIENT_DN $ssl_client_s_dn;     
passenger_set_cgi_param    HTTP_X_CLIENT_VERIFY $ssl_client_verify;     
access_log                 /usr/local/nginx/logs/puppet_access.log;   
error_log                  /usr/local/nginx/logs/puppet_error.log;   
root                       /etc/puppet/rack/public;   
ssl_certificate            /var/lib/puppet/ssl/certs/client.domain.com.pem;   
ssl_certificate_key        /var/lib/puppet/ssl/private_keys/client.domain.com.pem;   
ssl_crl                    /var/lib/puppet/ssl/ca/ca_crl.pem;   
ssl_client_certificate     /var/lib/puppet/ssl/ca/ca_crt.pem;   
ssl_ciphers                SSLv2:-LOW:-EXPORT:RC4+RSA;   
ssl_prefer_server_ciphers  on;   
ssl_verify_client          optional;   
ssl_verify_depth           1;   
ssl_session_cache          shared:SSL:128m;   
ssl_session_timeout        5m;   
}   

}   
注意下，我这里puppet server的hostname 是client.domain.com,至于具体的key路径之类的 大家自己按各自的环境自己改   
然后调整下puppet.conf   
[main]   
[agent]   
server = client.domain.com   
[master]   
certname = client.domain.com   
7，验证   
启动nginx   
# lsof -i:8140   
COMMAND   PID USER   FD   TYPE DEVICE SIZE/OFF NODE NAME   
nginx   20855 root    9u  IPv4 421091      0t0  TCP *:8140 (LISTEN)   
nginx   20856  www    9u  IPv4 421091      0t0  TCP *:8140 (LISTEN)   
可以发现8140端口已经起来   
# puppet agent --test --server client.domain.com   
Info: Retrieving plugin   
Info: Caching catalog for client.domain.com   
Info: Applying configuration version '1366960369'
Notice: Finished catalog run in 0.16 seconds   
发现已能正常使用   
# tail /usr/local/nginx/log/puppet_access.log  查看nginx日志   
192.168.200.220 - - [26/Apr/2013:21:12:15 +0800] "GET /production/node/client.domain.com? HTTP/1.1" 200 3502 "-" "-"
192.168.200.220 - - [26/Apr/2013:21:12:16 +0800] "GET /production/file_metadatas/plugins?&links=manage&recurse=true&checksum_type=md5&ignore=---+%0A++-+%22.svn%22%0A++-+CVS%0A++-+%22.git%22 HTTP/1.1" 200 283 "-" "-"
192.168.200.220 - - [26/Apr/2013:21:12:17 +0800] "POST /production/catalog/client.domain.com HTTP/1.1" 200 1033 "-" "-"
192.168.200.220 - - [26/Apr/2013:21:12:17 +0800] "PUT /production/report/client.domain.com HTTP/1.1" 200 14 "-" "-"
已经有记录，   
8.调整   
如果puppetmaster服务已经做成开机启动，记得关掉   
# chkconfig puppetmaster off   
# chkconfig nginx on
　　至此Puppet 负载均衡到此结束,nginx分别与passenger,mongrel的结合都做完了
　　本文出自 “TNT、运维之路” 博客，请务必保留此出处http://tntdba.blog.iyunv.com/1199791/1187739