Vagrantfile for setting up multiple machines with chef configuration

Example Vagrantfile below for setting up multiple virtual machines and using chef to provision them



Resources

• http://docs.vagrantup.com/v2/multi-machine/index.html 
• http://jbbarth.com/posts/2011-03-20-vagrant-provisioning-with-chefsolo.html 

HipChat is now free!

Just got an email from HipChat - now free for small groups - awesome!

> random tricks you can do with Rails

There are bunch of really good nuggets in this presentation:

• http://www.confreaks.com/videos/889-railsconf2012-ten-things-you-didn-t-know-rails-could-do 
• https://speakerdeck.com/jeg2/10-things-you-didnt-know-rails-could-do

Ruby on Rails continuous integration (CI) with Jenkins the easy way with Chef and Knife

Do you need a CI build setup for your Ruby on Rails app?

Here are some chef / knife solo scripts that will deploy a Jenkins server to run your CI build - you could be up and running in less than 1/2 an hour

https://github.com/house9/ci_chef_jenkins_rails

Check out the README for details

rails :remote => true jQuery events

I constantly find myself looking these up, saving this link for future reference

https://github.com/rails/jquery-ujs/wiki/ajax

contains all of the rails custom jQuery events for remote forms, such as "ajax:success", "ajax:before"; also includes the method signatures.

Sending email with Rails Mailers, The Random bits...

See the rails guides and railscasts for getting started with Rails Mailers; 
this article includes some additional information on Rails Mailers not included in those articles.

RailsCasts: http://railscasts.com/episodes/206-action-mailer-in-rails-3
Rails Guides: "Action Mailer Basics" on the rails guides - The guide covers all of the common mailer tasks

• setup and configuration
• attachments
• layouts

Random Bits

These examples were created using rails 3.2

Add importance headers

NOTE: many email clients will ignore these headers

Add receipt header

NOTE: many email clients will ignore these headers

Testing mailer headers with rspec

If you have rspec-rails gem installed with your rails application then running the generator will stub out most of your mailer tests, including a fixture file for the mailer view, which you may or may not want to remove.

NOTE: test against mail.header, not mail.headers

Use a different layout for some Mailer actions

our default layout is the customer facing one but we want to override it in some cases