Setting up Ruby on Rails on a Redhat Enterprise Linux Rackspace Cloud Server

Posted on April 4th, 2011 by Sacha Chua

1. Compile Ruby from source.

First, install all the libraries you’ll need to compile Ruby.

yum install gcc zlib libxml2-devel 
yum install gcc
yum install zlib
yum install zlib-devel
yum install openssl
yum install openssl-devel

My particular application has problems with Ruby 1.9.2, so I compiled Ruby 1.8.7 instead. This can be downloaded from ftp://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.7-p174.tar.gz

Unpack the source code for Ruby. Configure and install it with:

./configure
make
make install

Add /usr/local/bin to the beginning of your PATH.

2. Install Ruby Gems.

Downloadcd the latest Ruby Gems package and unpack it. I got mine from http://production.cf.rubygems.org/rubygems/rubygems-1.7.1.tgz . Change to the directory and run:

ruby setup.rb

3. Install Rails and rake

gem install rails rake

If all goes well, you should now have Rails and rake.

Troubleshooting:

*builder-2.1.2 has an invalid value for @cert_chain*

Downgrade Rubygems to version 1.6.2 with the following command.

gem update --system 1.6.2

(Stack Overflow)

sqlite3-ruby only supports sqlite3 versions 3.6.16+, please upgrade!

Compile sqlite from source:

wget http://www.sqlite.org/sqlite-amalgamation-3.7.0.1.tar.gz
tar zxvf sqlite-amalgamation-3.7.0.1.tar.gz
cd sqlite-amalgamation-3.7.0.1
./configure
make
make install
gem install sqlite3

LoadError: no such file to load – openssl

Install openssl and openssl-devel.
```
yum install openssl openssl-devel
```
Go to your Ruby source directory and run the following commands:
```
cd ext/openssl
ruby extconf.rb
make
make install
```

LoadError: no such file to load – readline

yum install readline-devel

Change to your Ruby source directory and run the following:

cd ext/readline
ruby extconf.rb
make
make install

(Code snippets)

You can’t access port 80 from another computer.

Port 80 (the web server port) is blocked by default on Redhat Enterprise Linux 5.5. Edit /etc/sysconfig/iptables to allow it, adding a line like:

-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT

Make sure you put it above the REJECT all line.

Load your changes with

/etc/init.d/iptables restart

(Cyberciti)

2011-04-04 Mon 11:06

More posts about: development, geek, rails, ruby, work // 4 Comments »

Short URL: http://sachachua.com/blog/p/22184

j3ssl33

Stuck in Step #3. I’m getting this error. T_T

–
ERROR: Could not find a valid gem ‘rails’ (>= 0) in any repository
ERROR: While executing gem … (Gem::RemoteFetcher::FetchError)
SocketError: getaddrinfo: Temporary failure in name resolution (http://rubygems.org/latest_specs.4.8.gz)
–

I tried to open the link, http://rubygems.org/latest_specs.4.8.gz, and it is accessible.
What could be the cause this problem?
- http://sachachua.com Sacha Chua
  
  Are you behind a proxy, by any chance? This forum thread might help.
j3ssl33

No, my server is not behind a proxy. I have a public IP on it.

I quote Nick (@qrush), working at RubyGems:

“there’s been problems with cloudfront to ec2 dns…no idea what’s up there :(”

This is not something I want to hear from them. There should be at least a workaround on this.
Pingback: Exploring Amazon’s EC2 Virtual Servers | George Cambell's WebDev Tech Notes

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