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.51cto.com/1199791/1187739

puppet负载均衡之nginx+passenger