Puppet Dashboard 是一个Ruby on Rails程序,用于显示Puppet master和agent的相关信息,它允许你从一个或这个多个Puppet Master 汇总的图形和报告数据。它同时从一个或者多个Puppet master上收集来自于Puppet agent的资产数据(主机的Fact和其他信息),它也能作为一个ENC来配置Puppet节点,并指定这些节点上的类和参数
安装puppet dashboard 需要一些基本的先决条件,包括ruby1.8以及一个用于存储数据的MYSQL数据库
一:安装环境准备
1. 通过使用YUM来安装一些需要依赖和使用的包
yum install -y ruby ruby-devel ruby-irb ruby-mysql ruby-rdoc ruby-ri rubygems rubygem-rake rubygem-rails
2. 安装MYSQL
yum install mysql mysql-server mysql-devel
安装MYSQL 遇到问题
yum install mysql mysql-devel mysql-server
Error: Package: mysql-server-5.1.61-1.el6_2.1.x86_64 (updates)
Requires: libmysqlclient_r.so.16()(64bit)
Available: mysql-libs-5.1.52-1.el6_0.1.x86_64 (base)
libmysqlclient_r.so.16()(64bit)
Available: mysql-libs-5.1.61-1.el6_2.1.x86_64 (updates)
libmysqlclient_r.so.16()(64bit)
Installed: mysql-libs-5.5.29-1.el6.x86_64 (@base)
Not found
解决办法:可能是因为更新了YUM源,提示版本有冲突,先把之前安装的MYSQL插件都给卸载掉,再重新安装
rpm -e mysql-5.5.29-1.el6.x86_64 --nodeps
rpm -e mysql-libs-5.5.29-1.el6.x86_64 --nodeps
rpm -e mysql-devel-5.5.29-1.el6.x86_64 --nodeps
之后重新安装mysql
yum install mysql mysql-server mysql-devel -y
service mysqld start 会自动去初始化MYSQL
设置root用户的密码
mysqladmin -u root password "passwd" ###设置密码
3. 配置MYSQL:
创建数据库和用户
create database dashboard default charset utf8;
mysql> grant all privileges on dashboard.* to dashboard@localhost identified by 'passwd';
Query OK, 0 rows affected (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
4.安装puppet-dashboard
1.git clone git://github.com/puppetlabs/puppet-dashboard.git
或者
2. Yum install puppet-dashboard
或者
3. wget http://puppetlabs.com/downloads/dashboard/puppet-dashboard-1.2.0.tar.gz
通过上面的三种方法都可以安装puppet-dashboard
在puppet dashboard 安装好以后,需要创建一个数据库来存储dashboard的数据,然后在dashboard中配置这个数据库,并使用合适的表来填充,目前后端只支持MYSQL
分三步:
编辑YAML配置文件(database.yml)来指定数据库
使用ruby的rake命令基于编辑好的配置文件创建数据库“dashboard”
填充数据
如果使用了第二种方法,yum 安装会把puppet-dashboard放在/usr/share/目录下
如果使用第一种方法,尽量就在/usr/share/ 目录下执行,前提是需要提前安装git工具(yum install -y git)
如果使用了第三种,将下载好的压缩包解决,之后:
mv puppet-dashboard-1.2.0 /usr/share/puppet-dashboard
5.配置dashboard
到/usr/share/puppet-dashboard/config 下
cp database.yml.example database.yml
cp settings.yml.example settings.yml
编辑 vi database.yml
修改如下
production:
database: dashboard (database name)
username: dashboard (username)
password: passwd (passwd)
encoding: utf8
adapter: mysql
Database.yml 文件包含了不同Rails环境的一系列数据库配置。在每一个环境的配置块中我们都需要指定舒勇的数据库的名字、用于连接数据库的用户名和密码,已经编码格式和数据库类型。
之前的MYSQL配置中已经创建了库,用ruby的rake命令来创建表
config]# rake RAILS_ENV=production db:migrate(在 /usr/share/puppet-dashboard/config下执行这条命令)
(in /usr/share/puppet-dashboard)
rake aborted!
no such file to load -- openssl
解决办法:
cd /tmp/ruby-1.8.7/ext/openssl/
ruby extconf.rb && make && make install
遇到ERROR: # gem install rake
ERROR: Loading command: install (LoadError)
no such file to load -- zlib
ERROR: While executing gem ... (NameError)
uninitialized constant Gem::Commands::InstallCommand
解决办法:
/tmp/ruby-1.8.7/ext/zlib
ruby extconf.rb && make && make install
解决问题后,继续执行
# rake RAILS_ENV=production db:migrate
ERROR : !!! The bundled mysql.rb driver has been removed from Rails 2.2. Please install the mysql gem and try again: gem install mysql.
rake aborted!
no such file to load -- mysql
执行命令: gem install mysql
提示ERROR:到目录:/usr/local/lib/ruby/gems/1.8/gems/mysql-2.9.1/ext/mysql_api 执行
ruby extconf.rb --with-mysql-config=/usr/lib64/mysql/mysql_config
checking for mysql_ssl_set()... no
checking for rb_str_set_len()... no
checking for rb_thread_start_timer()... no
checking for mysql.h... no
checking for mysql/mysql.h... no
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
通过mkmf.log看详细日志,提示
conftest.c:1:25: 错误:mysql/mysql.h:没有那个文件或目录
解决办法:
Yum install mysql-devel
之后重新编译:
ruby extconf.rb --with-mysql-config=/usr/lib64/mysql/mysql_config
&& make && make install
没有问题之后,继续执行命令,创建表
# rake RAILS_ENV=production db:migrate
提示ERROR:
no such file to load — mysql (日志文件很长,截取一部分)
/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require’
/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require’
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:156:in `require’
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/mysql_adapter.rb:65:in `mysql_connection’ no such file to load — mysql
/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require’
/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require’
解决办法:修改mysql_adapter.rb的配置文件
vi /usr/share/puppet-dashboard/vendor/rails/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb
修改:require_library_or_gem(‘mysql’) 替换为:
require_library_or_gem('/usr/local/lib/ruby/gems/1.8/gems/mysql-2.9.1/ext/mysql_api/mysql_api.so')
之后保存,退出!再次执行创建表命令:
# rake RAILS_ENV=production db:migrate ####无错误提示
登录数据库产看:
puppet-dashboard]# mysql -u dashboard -ppasswd -D dashboard -e "show tables;"
+------------------------------+
| Tables_in_dashboard |
+------------------------------+
| delayed_job_failures |
| delayed_jobs |
| metrics |
| node_class_memberships |
| node_classes |
| node_group_class_memberships |
OK,有表被创建了
二:运行puppet dashboard
/usr/share/puppet-dashboard/script/server -e production
=> Booting WEBrick
=> Rails 2.3.12 application starting on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
[2014-02-26 22:36:18] INFO WEBrick 1.3.1
[2014-02-26 22:36:18] INFO ruby 1.8.7 (2008-05-31) [x86_64-linux]
[2014-02-26 22:36:18] INFO WEBrick::HTTPServer#start: pid=24155 port=3000
这样启动,是在3000端口上运行Webrick 服务器,现在就可以通过
http://puppet-dashboard:3000/ 来查看Dashboard,防火墙要开放3000端口
三:结合passenger运行puppet dashboard
因为passenger 比Webrick复杂得多,也比Webrick具有更好的性能,还能和APACHE或者Nginx 组合在一起,使用passenger的主要优势是:对于dashboard 的引擎来说,它比Webrick快很多并且具有更好的性能
1.安装依赖的软件包
.yum install -y ruby ruby-libs ruby-devel httpd httpd-devel
2. Gem 安装passenger,passenger 不能在Redhat上以包的形式安装
[root@]# gem install passenger
Fetching: daemon_controller-1.1.8.gem (100%)
Fetching: rack-1.5.2.gem (100%)
Fetching: passenger-4.0.37.gem (100%)
提示error: install Curl development headers with SSL support:
Please install it with yum install curl-devel
执行yum install curl-devel -y ,之后再次执行 gem install passenger
3.加载Apache passenger 模块
需要使用passenger-install-apache2-module脚本来创建所需要的Apache Passenger模块
执行命令:passenger-install-apache2-module
之后 一直回车(enter),会有提示:
LoadModule passenger_module /usr/local/lib/ruby/gems/1.8/gems/passenger-4.0.37/buildout/apache2/mod_passenger.so
PassengerRoot /usr/local/lib/ruby/gems/1.8/gems/passenger-4.0.37
PassengerDefaultRuby /usr/local/bin/ruby
4.配置Apache的虚拟主机,通过同IP不同端口来(80、8080)
vi /etc/httpd/conf/httpd.conf
添加一行: listen 8080
在Load 模块下添加如下代码
LoadModule passenger_module /usr/local/lib/ruby/gems/1.8/gems/passenger-4.0.37/buildout/apache2/mod_passenger.so
PassengerRoot /usr/local/lib/ruby/gems/1.8/gems/passenger-4.0.37
PassengerDefaultRuby /usr/local/bin/ruby
这些代码都是之前你脚本获取到的:passenger-install-apache2-module
编辑 vi /etc/httpd/conf.d/vhost.conf
案例一:
ServerName puppetmaster.xxb.cn
DocumentRoot /usr/share/puppet-dashboard/public/
# This relaxes Apache security settings.
AllowOverride all
# MultiViews must be turned off.
Options -MultiViews
案例二:
Listen 8080
ServerName 10.10.10.118:8080
DocumentRoot /usr/share/puppet-dashboard/public/
# This relaxes Apache security settings.
AllowOverride all
# MultiViews must be turned off.
Options -MultiViews
这两个一个是通过域名,一个是通过IP:PORT来访问的
目前,dashboard工具的一个局限是缺乏身份验证、授权和加密
可以通过iptables 配置一个基于主机和网络的防火墙来限制dashboard的访问
后面的文章会继续写puppet-dashboard的一些功能,以及同样是Puppet GUI的另外一个项目:Foreman