• Rails 2.3.5 will fail with RubyGems 1.5.0 +
• Rails 2.3.11 will fail with RubyGems 1.7.0 +

So what if you want to deploy or run an application which unfortunately still or initially written in rails 2, given the situation that latest RVM default install rubygems version 1.8.11?

It turns out to be not so painful, cause it’s as simple as just issue one command (take 1.4.2 for example):

Just like the China highway train, sometimes what you need to do is just to stop moving so fast.

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好了不矫情了，let’s do business.

[Overview]
本文介绍如何在archlinux上快速搭建rails开发环境，其中有很多可能包括我个人的preferences，各位完全可以根据自行需要取舍。

[ArchLinux]
参照Arch自己的 Official Install Guide ⁱⁱ 安装，其实根本不用参照，整个安装wizard做的已经非常非常user friendly了，我觉得。

[RVM]
RVM 的安装依赖 git 和 curl：

装之：

注意没有sudo，符合homebrew的philosophy，尽量不要root，何况我们还是作为development环境，rvm官网好像现在已经没有倾向性了，不过我印象中以前也是倾向于装在user的home目录。

同样是非常友好的安装过程，参照提示，在.bash_profile或者.bashrc的最后添加一行 Load 代码（如果你用的是bash的话）：

我还喜欢shell补全，如果你也喜欢，再加上一句即可：

最后查看一下notes，看看所在平台有什么注意事项：

[Ruby]
这里我们用rvm安装ruby，如果你喜欢也可以pacman -S之，我查了下，arch repo里的ruby是1.9.2，patch level也是最新的180，不过rvm的好处是可以安装好几个ruby版本，且能够非常方便的帮你维护不同的gemset，非常像python里面的virtualenv.

安装最新的ruby 1.9.2:

如果需要也可以装上1.8.7的：

下载编译安装完后我们就可以使用了，我喜欢把ruby 1.9.2，gemset rails3作为我的default：

verify一下我们是否还是 so far so good：

[Rails]
安装rails 3，最新的是3.0.5:

创建一个project做demo：

bundle一下，确保所有依赖的gem都已安装，这里会把sqlite3给补上:

又一个milestone，测试一下：

[Nginx & Passenger]
不用apache，让我们换nginx玩玩；由于passenger的nginx模块安装的时候需要重新编译nginx，所以 pacman -S nginx 似乎是没有意义的，我们这里先skip掉，先安装passenger，然后在编译安装passenger的nginx模块的时候把nginx一并搞定。

安装passenger：

安装passenger的nginx模块，同时安装nginx，默认的nginx安装地址是/opt/nginx（可以修改到不需要root的地址），需要root，我们可以用rvmsudo搞定：

again，友好至极，装完连配置文件都帮你改好了，不过检查一下总不会错：

配置一下，来跑一下之前创建的demo project：

我取的server name时demo.local，所以在hosts里面加上这条entry后，我们就可以用browser访问 http://demo.local 了.

如果遇到403 forbidden，在nginx.conf里面改下user即可：

reload, welcome aboard!

1. 我有一个arch的liveusb，各种机子上一直保存着至少2+个arch的vm，虽然后来由于太占空间被转移到了移动硬盘，可就是一直舍不得删
2. 最近老是official, official的… 你懂的

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[page title]

change to whatever text you want.

[header title，sub-title]

change to whatever text you want.

[footer]

change to whatever text you want.

[Disqus]
到Disqus register site和profile，然后拿到universal的javascript code，替换我的javascript code，具体位置在：

[Google Analytics]
同Disqus类似，到Google Analytics注册添加site，然后获得javascript code，替换默认的javascript code，位置在：

Enjoy and have fun!

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[Development Environment]
Assume你的os已经装好ruby，如果没有请自行google，这里不再赘述。

首先update一下rubygems，最近rubygems貌似打了鸡血，更新极其频繁… 且bug具多…如果出了问题建议rollback到1.4.2…
[Note: 由于我使用rvm，所以以下command都没有sudo，根据你的情况你可能需要加上sudo]

从github上checkout一份最新的code，rails 2.3.11已经freeze进了source code，所以安装rails并不是必须的：

复制一份database.yml，不需要什么特别的修改，默认的dev环境配置是使用sqlite3的database：

运行rake db:migrate之前确保已经装好了sqlite3-ruby gem和parse_feeds.rake所依赖的gem，不然rake可能会报错:

如果没有报错，database应该已经建好，接下来我们需要给database populate some data，首先来搞Source表，编辑RAILS_ROOT/db/seeds.rb文件，修改blog的link或者删除某些不需要的link，也可以加上你需要的source，我默认加了4个source：

完成后我们就可以populate database：

接下来来搞Activity表，这个表是需要实时更新的（我在production上是半小时一次），数据的更新是通过RAILS_ROOT/lib/tasks/parse_feeds.rake脚本完成的，根据你的需要你需要修改一下这个文件，比如blog的feed地址，sina的username/password，douban的miniblogs feed地址以及twitter的帐号（请自行注意翻墙），根据需要也可以删除或添加新的rake tasks，完成修改后，务必做下测试，我用一个vitual task stdout以简化运行（也为了之后方便cron job配置）：

如果需要，你也可以执行单个task：

如果一切正常，database应该已经populate完成，大功告成，server start，http://localhost:3000/, welcome abroad：

[Production Environment]
完成了开发环境的搭建，Production的deployment就会简单很多（当然用fastcgi的不算），因为本质上是差不多的，区别可能只在database和web server的配置之上（我们是卢瑟，没有多少点击率的小site根本不需要load balance，不需要cdn，不需要nosql，不需要distributed）.

database的配置请修改database.yml的production section，比如我们要用mysql database（最新driver是mysql2，不过as you may already know，HostMonser支持只支持mysql，你可以根据你的需要使用mysql2）：

web/app server建议使用passenger，然后apache抑或nginx，这里不再赘述；当然你也可以直接mongrel或是webrick抑或fastcgi.

最后你还需要配置一个cron job，定时更新数据，我在Production上每30分钟更新一次，你可以根据你的需要配置，比如某些话捞可能需要15分钟一次甚至5分钟一次：

能回忆记起的大致就这些了，如果deploy中有问题请留言，I’m more than happy to assist.

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The code is based on rails 2.3.11 instead of rails 3, quite a surprise, isn’t it? Actually I was planning to, but after some research, it turns out my shared host provider HostMonster only support rails 2 at the time of this writing, shame on them.

It was always quite enjoyable to figure this and that out in the process of curating that site, except the deployment experiences on HostMonster. To my surprise, they’re still using Fastcgi to support rails application, again, shame on them.

Last but not least, the project is called “LoserLogs” and copyrighted by “Losers” corporation, cause I and along with some of my friends are all having the “loser” faith in our heart, this is NOT a joke :)

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For the official installation guide, please refer this wiki page.

[Preparation]
1. Download the latest stable release of redmine (0.8.4) from rubyforge:

2. Install ruby and ruby on rails
(Notes: rails is optional since the redmine official release we download above already include the appropriate rails version (2.1.2) in its vendor directory)

3. Make sure rubygems and rake meet the version requirement of redmine:

[Database]
mysql is the recommended database of redmine, so here we will use mysql:

start mysql:

refer this wiki page for more information about mysql installation.

[Basic installation]
step 1: create redmine db with user “redmine”

step 2: configure redmine database settings for “production” environment

edit config/database.yml, make the production section looks like:

production:
adapter: mysql
database: redmine
host: localhost
username: redmine
password: password
encoding: utf8

step 3: create database structure and an administrator account

the default administrator account is:

username: admin
password: admin

step 4: insert default configuration data in database

according to the official wiki, this step is optional but highly recommended. It will load default roles, trackers, statuses, workflows and enumerations for our convenience.

step 5: test installation
start mongrel:

point your browser to navigate http://server-domain-or-ip:3000/ to see the redmine welcome page, use the default admin account above to login.

redmine home:

redmine administration setting:

[Deploy using phusion passenger (aka mod_rails)]
step 1: install passenger and its apache 2 module
install passenger:

install apache 2 module, please make sure g++, ruby, openssl and apache are installed before issue the command below:

follow the screen instructions and pay attention to the console output, some of them will be used later.

step 2: deploy and set up permissions

step 3: configure apache to use passenger
add one include at the end of httpd.conf:

create the httpd-rails.conf:

edit httpd-rails.conf, follow the former console output and add the passenger configuration there, below is my configuration, yours may be differ:

LoadModule passenger_module /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/ext/apache2/mod_passenger.so
PassengerRoot /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4
PassengerRuby /usr/bin/ruby

NameVirtualHost *:80

<VirtualHost *:80>
  ServerName SERVER-DOMAIN-OR-IP
  DocumentRoot /srv/http/rails/redmine-0.8.4/public
  RailsEnv production
  ErrorLog /var/log/httpd/rails_error_log
  CustomLog /var/log/httpd/rails_access_log common
</VirtualHost>

step 4: restart apache and test installation

navigate http://SERVER-DOMAIN-OR-IP/ to see if anything is broken.

[Optional components]
we use subversion for repository browsing:

and enable Gantt export to png image:

[Themes]
I like the Basecamp theme:

then the basecamp theme option is available in the drop-down list of “Theme” in the “General” tab under “Administration -> Settings”.

[SMTP]
to be continued…

[Plugins]
to be continued…

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[Install ruby and rubygems]
First we need to install ruby and its package system rubygems:

[Install rails]
Next install rails via rubygems:

gem will help us manage all the dependencies and download them automatically.

(Notes: if you execute the above command without being root (e.g. without sudo), gem will install rails in the home directory of the current user. Usually the directory is named after “.gem”, you probably need to manually add rails and rake bin directory to your PATH before you could use them, that may not be what you exactly want.)

next install sqlite database since it’s rails’s default database:

rails supports a lot of modern databases, but here we will only use sqlite for simplicity.

Finally let’s replace rails build-in http server webrick with mongrel, which is faster and more stable, and also rails community’s recommendation.

[Test rails installation]
All right, that’s it, pretty simple, isn’t it? Next, let’s make sure it exactly works as we expected.

test ruby, rubygems, rails and rake installation, make sure all these tools are successfully installed:

create a rails testapp with preconfiguration for sqlite 3 database:

next start the web server, mongrel will be booted since we have mongrel installed before, otherwise webrick will be used:

as can be seen from the console output below, the default listening port is 3000:

=> Booting Mongrel
=> Rails 2.3.2 application starting on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server

finally fire our favorite browser to http://server-domain-or-ip:3000/ to see the rails “welcome abroad” page, and we’re done:

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