Initial release.

README.md

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+# Rails Ghetto
+
+Description
+===========
+
+Chef cookbook intended for managing & deployment of multiple rack-based applications living on one server behind nginx. Supports asset pipeline right from the box.
+
+Uses nginx + Unicorn to run applications.
+
+Requirements
+============
+
+Cookbook depends on several opscode's cookbooks:
+
+* [application](https://github.com/opscode-cookbooks/application)
+* [application_ruby](https://github.com/opscode-cookbooks/application_ruby)
+* [nginx](https://github.com/opscode-cookbooks/nginx)
+
+Recipes
+=======
+
+* `rails_ghetto::user` - creates user and group (if they aren't exist) that are used to deploy & run applications
+* `rails_ghetto::nginx_sites_enable` - creates and enables nginx configuration files 
+* `rails_ghetto::deploy` - deploys application. *Caution* - [revision based deploy](http://wiki.opscode.com/display/chef/Deploy+Resource#DeployResource-DeployResource) is used to ensure that chef-client runs will not re-deploy all applications. Make sure you understand how it works.
+
+Attributes
+==========
+
+Here is a sample YAML representation of attributes hierarchy:
+
+    rails_ghetto:
+      deployment_user: deploy
+      deployment_group: deploy
+      apps_root: '/var/www/apps'
+      applications:
+        - sample:
+            repository: git@github.com:account/application.git
+            revision: master
+            deploy_key: '/home/root/.ssh/github'
+            unicorn_port: 8080
+            server_name: 'production.example.com'
+            compile_assets: true
+            run_migrations: true
+            rails_environment: 'production'
+            database: { adapter: mysql2, encoding: 'utf8', database: 'sample', username: 'root', password: 'changeit', socket: '/tmp/mysql.sock' }
+        - sample2:
+            repository: git@github.com:account/application.git
+            revision: master
+            deploy_key: '/home/root/.ssh/github'
+            unicorn_port: 8081
+            server_name: 'staging.example.com'
+            compile_assets: false
+            run_migrations: true
+            rails_environment: 'staging'
+            database: { adapter: postgresql, encoding: 'utf8', database: 'sample2', username: 'root', password: 'changeit', socket: '/tmp/mysql.sock' }
+
+
+© 2012 [Igor Afonov](https://iafonov.github.com) MIT License

attributes/default.rb

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+default['rails_ghetto']['deployment_user']  = 'deploy'
+default['rails_ghetto']['deployment_group'] = 'deploy'
+
+default['rails_ghetto']['apps_root'] = '/var/www/apps/'

libraries/default.rb

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+class Chef
+  class Recipe
+    def rails_applications(&block)
+      Array(node['rails_ghetto']['applications']).each do |application|
+        application_name = application.keys.first
+        application_data = application[application_name]
+        default = application == Array(node['rails_ghetto']['applications']).first
+
+        block.call(application_name, application_data, default)
+      end
+    end
+  end
+end

metadata.rb

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+maintainer       "Igor Afonov"
+maintainer_email "afonov@gmail.com"
+license          "MIT"
+description      "Simple cookbook for managing deployment of several ruby/rails web applications"
+version          "0.0.1"
+
+depends "application"
+depends "application_ruby"
+depends "nginx"

recipes/default.rb

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+include_recipe 'rails_ghetto::user'
+include_recipe 'rails_ghetto::deploy'
+include_recipe 'rails_ghetto::nginx_sites_enable'

recipes/deploy.rb

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+deployment_user  = node['rails_ghetto']['deployment_user']
+deployment_group = node['rails_ghetto']['deployment_group']
+
+rails_applications do |name, app|
+  application name do
+    path "/var/www/apps/#{name}"
+    owner deployment_user
+    group deployment_group
+    deploy_key File.read(app['deploy_key']) if app['deploy_key']
+
+    before_symlink do
+      # TODO: figure out how to extract common part
+      if app['run_migrations']
+        execute 'create_and_migrate_database' do
+          command 'bundle exec rake db:create db:migrate'
+          user deployment_user
+          group deployment_group
+          cwd release_path
+          environment ({'RAILS_ENV' => app['rails_environment']})
+        end
+      end
+
+      if app['compile_assets']
+        execute 'compile_assets' do
+          command 'bundle exec rake assets:precompile'
+          user deployment_user
+          group deployment_group
+          cwd release_path
+          environment ({'RAILS_ENV' => app['rails_environment']})
+        end
+      end
+    end
+
+    repository app['repository']
+    revision app['revision']
+
+    rails do
+      gems ['bundler', 'rake']
+
+      if app.has_key? 'database'
+        database do
+          app['database'].each do |key, value|
+            send(key.to_sym, value)
+          end
+        end
+      end
+    end
+
+    unicorn do
+      port app['unicorn_port'].to_s
+      restart_command do
+        execute "/etc/init.d/#{name} restart" do
+        end
+      end
+    end
+  end
+end

recipes/nginx_sites_enable.rb

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+nginx_site "default" do
+  enable false
+end
+
+rails_applications do |name, data, default|
+  template "/etc/nginx/sites-available/#{name}" do
+    source "nginx_site.erb"
+    mode 644
+    variables(
+      :application_name => name,
+      :default => default,
+      :unicorn_port => data["unicorn_port"]
+    )
+  end
+
+  nginx_site name do
+    enable true
+  end
+end

recipes/user.rb

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+group node["rails_ghetto"]["deployment_group"]
+
+user node["rails_ghetto"]["deployment_user"] do
+  comment "Deployment User"
+  home "/home/#{node["rails_ghetto"]["deployment_user"]}"
+  gid node["rails_ghetto"]["deployment_group"]
+  supports :manage_home => true
+end
+
+directory "/home/deploy/.ssh" do
+  owner node["rails_ghetto"]["deployment_user"]
+  group node["rails_ghetto"]["deployment_group"]
+  mode 0700
+  recursive true
+end
+
+file "/home/deploy/.ssh/authorized_keys" do
+  owner node["rails_ghetto"]["deployment_user"]
+  group node["rails_ghetto"]["deployment_group"]
+  mode 0600
+  content Array(node["rails_ghetto"]["authorized_keys"]).join("\n")
+end

templates/default/nginx_site.erb

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+# Generated by stack-rails/chef - do not edit manually
+upstream <%= @application_name %>_server {
+  server 127.0.0.1:<%= @unicorn_port %> fail_timeout=0;
+}
+
+server {
+  listen 80 <%= @default ? "default" : "" %>;
+  server_name <%= @default ? "_" : @application_name %>;
+
+  client_max_body_size 4G;
+  keepalive_timeout 5;
+  root /var/www/apps/<%= @application_name %>/current/public;
+  try_files $uri/index.html $uri.html $uri @app;
+
+  location @app {
+    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+    proxy_set_header Host $http_host;
+    proxy_redirect off;
+    proxy_pass http://<%= @application_name %>_server;
+  }
+
+  error_page 500 502 503 504 /500.html;
+  location = /500.html {
+    root /var/www/apps/sample/current/public;
+  }
+}