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Ruby on Rails: How-to install Redmine

Summary

In this tutorial you will find the instructions needed for installing a ruby on rails application known as redmine.
The version of redmine you will be installing is 2.1.4, It is one of the newer versions at the time of this article's creation.
These steps have been broken down in to 13 easy to follow steps.

Getting started

Firstly, this ruby on rails applications is considered outside the Scope of Technical Support.

Secondly, before you can follow this helpdesk article, you are going to need SSH access. If you don't know how to get SSH access, please review these other helpdesk articles.

Note:

Create rails_app folder and redmine folder within it then go inside that folder

            # mkdir -p ~/rails_apps/redmine/
            # cd ~/rails_apps/redmine/

Download redmine 2.1.4, extract it and move the content out of it, then delete the files not being used.

            # wget http://rubyforge.org/frs/download.php/76589/redmine-2.1.4.tar.gz
            # tar xvzf redmine-2.1.4.tar.gz 
            # mv redmine-2.1.4/* ./
            # rm -rf redmine-2.1.4*

Move example files where they can be used

            # cd config
            # mv database.yml.example database.yml
            # mv configuration.yml.example configuration.yml

Creating the MySQL Database/User/Password

Log in to your Just Host Control Panel
Within the database section of that cPanel, find the 'MySQL® Databases' Icon.
Create a database, a username, and a password
Assign the user to the database. Full permissions.

Click here for information about How to Create and Delete MySQL Databases and Users

Modifying your database.yml file

            # vim database.yml

Modify these lines

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

Updating the ~/rails_apps/redmine/public/.htaccess file

            # cd ../public/
            # pwd

You should see something similar to this;

            /home#/user/rails_apps/redmine/public

            # vim .htaccess

Add these lines

               Options -MultiViews
               PassengerResolveSymlinksInDocumentRoot on
               #Set this to whatever environment you'll be running in
               RailsEnv production
               RackBaseURI /
               SetEnv GEM_HOME /home1/examplec/ruby/gems

Update this line to match the path for #pwd

               SetEnv GEM_HOME /home#/user/ruby/gems

Creating the subdomain
The goal is to point the subdomain to the redmine folder, if you don't have one in mind, you can simply use redmine as your subdomain;

Log in to your Just Host Control Panel
Within the domain section of that cPanel, find the 'Subdomains' Icon.
Choose one of your Domain Names from the drop-down list
Then create a subdomain going to the document root of redmine

Creating the symlink
Now you need to delete the redmine folder, you can delete this from within the ~/public_html directory.

            # rm -rf redmine

Creating the symlink

            # ln -s ~/rails_app/redmine/public redmine

Updating your ~/.bashrc file
Add these lines to the bottom of your ~/.bashrc file

               export HPATH=$HOME
               export GEM_HOME=$HPATH/ruby/gems
               export GEM_PATH=$GEM_HOME:/lib64/ruby/gems/1.9.3
               export GEM_CACHE=$GEM_HOME/cache
               export PATH=$PATH:$HPATH/ruby/gems/bin
               export PATH=$PATH:$HPATH/ruby/gems

after which source your .bashrc file

            # source ~/.bashrc

You will then need to check your rails version

            # rails -v

You should get this message

            Rails 3.2.13

If you see this an error like so

               Invalid gemspec in [/home#/user/ruby/gems/specifications/mail-2.4.4.gemspec]: invalid date format in specification: "2012-03-14 00:00:00.000000000Z"
               Invalid gemspec in [/home#/user/ruby/gems/specifications/tilt-1.3.3.gemspec]: invalid date format in specification: "2011-08-25 00:00:00.000000000Z"

Open the file from the error message, in this case /home#/user/ruby/gems/specifications/mail-2.4.4.gemspec modify this line

               s.date = %q{2012-03-14 00:00:00.000000000Z}

Change it to

               s.date = %q{2012-03-14}

That should correct that error message. This easy to run command is also viable.

            # find $HOME/ruby/gems/specifications -name \*.gemspec | xargs sed -i "s/\ 00:00:00.000000000Z//"

Running bundle install

            # cd ~/rails_apps/redmine/
            # bundle install
            # rake generate_session_store

the # rake generate_session_store is strictly related to redmine, some other applications may use it
After running the rake if you get this error

               Invalid gemspec in [/home#/user/ruby/gems/specifications/jquery-rails-2.0.3.gemspec]: invalid date format in specification: "2012-08-16 00:00:00.000000000Z"

Again open that file /home#/user/ruby/gems/specifications/jquery-rails-2.0.3.gemspec and fix the date, if you don't know how to do that read above about 10 lines.

            # bundle install

Running generate_session_store or generate_secret_token

            # rake generate_session_store

If you get an error saying that command is deprecated, run this command instead;

            # rake generate_secret_token

publishing the site

            # rake db:migrate RAILS_ENV=production

Common errors

            # rails generate controller First list
            
               /home4/lorentzo/ruby/gems/gems/execjs-1.4.0/lib/execjs/runtimes.rb:51:in `autodetect': Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)
               from /home#/user/ruby/gems/gems/execjs-1.4.0/lib/execjs.rb:5
               from /home#/user/ruby/gems/gems/coffee-script-2.2.0/lib/coffee_script.rb:1:in `require'
               from /home#/user/ruby/gems/gems/coffee-script-2.2.0/lib/coffee_script.rb:1
               from /home#/user/ruby/gems/gems/coffee-script-2.2.0/lib/coffee-script.rb:1:in `require'
               from /home#/user/ruby/gems/gems/coffee-script-2.2.0/lib/coffee-script.rb:1
               from /home#/user/ruby/gems/gems/coffee-rails-3.2.2/lib/coffee-rails.rb:1:in `require'
               from /home#/user/ruby/gems/gems/coffee-rails-3.2.2/lib/coffee-rails.rb:1
               from /home#/user/ruby/gems/gems/bundler-1.2.2/lib/bundler/runtime.rb:68:in `require'
               from /home#/user/ruby/gems/gems/bundler-1.2.2/lib/bundler/runtime.rb:68:in `require'
               from /home#/user/ruby/gems/gems/bundler-1.2.2/lib/bundler/runtime.rb:66:in `each'
               from /home#/user/ruby/gems/gems/bundler-1.2.2/lib/bundler/runtime.rb:66:in `require'
               from /home#/user/ruby/gems/gems/bundler-1.2.2/lib/bundler/runtime.rb:55:in `each'
               from /home#/user/ruby/gems/gems/bundler-1.2.2/lib/bundler/runtime.rb:55:in `require'
               from /home#/user/ruby/gems/gems/bundler-1.2.2/lib/bundler.rb:128:in `require'
               from /home#/user/rails_apps/first/config/application.rb:7
               from /home#/user/ruby/gems/gems/railties-3.2.9/lib/rails/commands.rb:24:in `require'
               from /home#/user/ruby/gems/gems/railties-3.2.9/lib/rails/commands.rb:24
               from script/rails:6:in `require'
               from script/rails:6

Solution

            # gem install therubyracer

then run

            # bundle install

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Ruby on Rails: How-to install Redmine

Summary

Getting started

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