puppet-dashboard 安装（草稿）

接着上面的puppet安装一文，虽然puppet会很努力的工作，但还有个问题，我们想了解puppet节点的运行情况，也就是回馈，因为编写puppet语法规则难免出错。但是report目录下的yaml 文件又不具有可读性，客户端很多则邮件又会被淹没，于是这就有了dashboard。

dashboard 跟cacti 有点类似，都使用mysql作为后端数据库。

沿袭前面文章的环境

centos 6

服务端 puppet .test.org

客户端 apache01.test.org

已经配置好了http + passenger

安装dashboard

yum install puppetlabs-release
yum install puppet-dashboard mysql-server ruby-mysql

配置mysql数据库

# service mysqld start
# mysql -u root -p
mysql> CREATE DATABASE dashboard_production CHARACTER SET utf8;
>CREATE USER 'dashboard'@'localhost' IDENTIFIED BY 'dashboard';
>GRANT ALL PRIVILEGES ON dashboard_production.* TO 'dashboard'@'localhost';
> flush privileges;

编辑/usr/share/puppet-dashboard/config/database.yml，修改如下

production:
  database: dashboard_production
  username: dashboard
  password: dashboard
  encoding: utf8
  adapter: mysql

导入数据

# cd /usr/share/puppet-dashboard/
# rake gems:refresh_specs
# rake RAILS_ENV=production db:create
# rake RAILS_ENV=production db:migrate

启动puppet-dashboard
chmod 666 /usr/share/puppet-dashboard/log/production.log
service  puppet-dashboard start

这样，puppet-dashboard 就会监听在本地3000端口，使用的是ruby自带的http服务器webrick，可以通过web浏览了。

apache作为前端

配置httpd虚拟主机

cp /usr/share/puppet-dashboard/ext/passenger/dashboard-vhost.conf /etc/httpd/conf.d/dashboard.conf

配置文件同样是给debian/ubuntu 用的，需要做一些修改

1、将日志选项路径 /var/log/apache2 改为/var/log/httpd

2、取个puppet主机的子域名 dashboard.puppet.test.org

3、模块路径由

/var/lib/gems/1.8/gems/passenger-2.2.11/ext/apache2/mod_passenger.so

修改为

/usr/lib64/httpd/modules/mod_passenger.so

4、passenger路径替换，将

/var/lib/gems/1.8/gems/passenger-2.2.11

修改为

/usr/lib/ruby/gems/1.8/gems/passenger-3.0.12

（版本号可能有差异，请事先查看是否存在类似的目录）

(其实之前已经配置了passenger，所以这行导入模块可以注释掉)

修改后大概就是这个样子(前3行可以注释掉)

# LoadModule passenger_module /usr/lib64/httpd/modules/mod_passenger.so
# PassengerRoot /usr/lib/ruby/gems/1.8/gems/passenger-3.0.12
# PassengerRuby /usr/bin/ruby
# you may want to tune these settings
PassengerHighPerformance on
PassengerMaxPoolSize 12
PassengerPoolIdleTime 1500
# PassengerMaxRequests 1000
PassengerStatThrottleRate 120
RailsAutoDetect On
<VirtualHost *:80>
        ServerName dashboard.puppet.test.org
        DocumentRoot /usr/share/puppet-dashboard/public/
<Directory /usr/share/puppet-dashboard/public/>
                Options None
                Order allow,deny
                allow from all
</Directory>
  ErrorLog /var/log/httpd/dashboard.puppet.test.org_error.log
  LogLevel warn
  CustomLog /var/log/httpd/dashboard.puppet.test.org_access.log combined
  ServerSignature On

重启httpd

service httpd restart

实时报告

设置puppet客户端每次执行完任务后立即报告给dashboard

在apache01.test.org上设置puppet客户端

[agent]
report = true

在puppet.test.org 上设置puppet服务端

[master]
reports = store,http
reporturl = http://dashboard.puppet.test.org:80/reports

导入现有yml文件报告

#rake RAILS_ENV=production reports:import REPORT_DIR=/var/lib/puppet/

最后一步

cp /usr/share/puppet-dashboard/ext/puppet/puppet_dashboard.rb /var/lib/puppet/reports/

启动服务

# /etc/init.d/puppet-dashboard start
# /etc/init.d/puppet-dashboard-workers start