Drive-Thru: chef-solo in minutes¶ ↑

Drive-Thru aims to be a quick and easy way to go from a box with only an ssh connection to a box that contains everything that you’ve ordered off the menu (as defined by your cookbooks and dna.rb)

Getting started¶ ↑

You’ll need to enter your password once to setup the public key. After that take a 5 minute break while drive-thru handles your order.

1. ‘git clone git://github.com/mikehale/drive-thru.git`

2. ‘cd drive-thru`

3. ‘git submodule init && git submodule update`

4. Edit config/rake.rb with your server specific information

5. ‘rake initialize_host` # (adds your public key to root user, configures DNS, installs chef-solo, rsyncs your cookbooks and runs chef-solo)

Workflow¶ ↑

• add recipes and update dna.rb

• run rake

• rinse and repeat

Note: drive-thru has only been tested on slicehost using the ubuntu jaunty image.¶ ↑

Apache + Passenger Example¶ ↑

This example will install apache and passenger on your box, and configure apache for your application(s). You’ll still need to cap deploy your rails app(s). Check out github.com/ezmobius/chef-deploy for how to deploy your application using chef.

Update your dna.rb¶ ↑

dna = {
  :apps_dir => "/var/www/apps",
  :applications => [
    {
      :name => "example",
      :server_name => "example.com",
      :server_aliases => ["www.example.com"],
    }
  ],
  :recipes => [
    "apache2", "apache2::mod_rails",
    "passenger",
    "applications"
   ]
}

Add an applications cookbook to site-cookbooks¶ ↑

rake COOKBOOK=applications, optional CB_PREFIX=site-

Edit site-cookbooks/applications/recipes/default.rb¶ ↑

apache_site "000-default" do
  enable false
end

directory(node[:apps_dir])

node[:applications].each do |config|
  name = config[:name]
  config[:env] ||= "production"
  config[:server_name] ||= node[:fqdn]
  config[:server_aliases] ||= []
  config[:port] ||= 80
  ssl = true if config[:port].to_s != "80"
  protocol = ssl ? "https" : "http"
  name_env = "#{name}_#{config[:env]}"
  app_dir = "#{node[:apps_dir]}/#{name_env}"

  web_app name_env do
    docroot "#{app_dir}/current/public"
    template "rails.vhost.erb"
    server_name config[:server_name]
    server_aliases config[:server_aliases]
    rails_env config[:env]
    port config[:port] || "80"
    ssl ssl
    protocol protocol
  end
end

Create site-cookbooks/applications/templates/default/rails.vhost.rb¶ ↑

<% if @params[:ssl] -%>
<VirtualHost *:80>
  ServerName <%= @params[:server_name] %>
  <%= 'ServerAlias ' unless @params[:server_aliases].empty? %><% @params[:server_aliases].each do |a| %><%= "#{a}" %> <% end %>

  RedirectPermanent / https://<%= @params[:server_name] %>:<%= @params[:port] %>/
</VirtualHost>

<% end -%>
<VirtualHost *:<%= @params[:port] %>>
  ServerName <%= @params[:server_name] %>
  <%= 'ServerAlias ' unless @params[:server_aliases].empty? %><% @params[:server_aliases].each do |a| %><%= "#{a}" %> <% end %>
  DocumentRoot <%= @params[:docroot] %>

  PassengerEnabled on
  RailsEnv <%= @params[:rails_env] %>

  <Directory <%= @params[:docroot] %>>
    Options FollowSymLinks
    AllowOverride None
    Order allow,deny
    Allow from all
  </Directory>

  RewriteEngine On

  LogLevel info
  RewriteLogLevel 0

  ErrorLog <%= @node[:apache][:log_dir] %>/<%= @params[:name] %>-error.log
  CustomLog <%= @node[:apache][:log_dir] %>/<%= @params[:name] %>-access.log combined
  RewriteLog <%= @node[:apache][:log_dir] %>/<%= @params[:name] %>-rewrite.log

  # Canonical host: <%= @params[:server_name] %>
  RewriteCond %{HTTP_HOST}   !^<%= @params[:server_name] %> [NC]
  RewriteCond %{HTTP_HOST}   !^$
  RewriteRule ^/(.*)$        <%= "#{@params[:protocol]}://#{@params[:server_name]}" %>/$1 [L,R=301]

  # Maintenance page
  RewriteCond %{DOCUMENT_ROOT}/system/maintenance.html -f
  RewriteCond %{SCRIPT_FILENAME} !maintenance.html
  RewriteRule ^.*$ /system/maintenance.html [L]

<% if @params[:ssl] -%>
  SSLEngine On
  SSLCertificateFile <%= "#{@node[:apache][:dir]}/ssl/#{@params[:server_name]}.pem" %>
  SSLCertificateKeyFile <%= "#{@node[:apache][:dir]}/ssl/#{@params[:server_name]}.pem" %>
<% end -%>
</VirtualHost>