Update how we provision and deploy to server

.gitignore

@@ -12,3 +12,5 @@ config/deploy.rb
 config/database.yml
 db/*.sqlite3
 .rvmrc
+config/stack/files/monitrc.conf
+config/stack/files/nginx.conf.sample

config/deploy.example.rb

@@ -1,7 +1,12 @@
-set :application, "watch-dog"
+set :application, "watchdog"
 set :use_sudo, false
 set :repository,  "git://github.com/vigetlabs/watch-dog.git"
 set :scm, :git
+set :ssh_options, {:forward_agent => true}
+set :branch, 'origin/master'
+set :user, "watchdog-deploy"
+set :deploy_to, "/var/www/#{application}"
+set :rake, "/usr/local/bin/rake"
 
 set(:latest_release)  { fetch(:current_path) }
 set(:release_path)    { fetch(:current_path) }
@@ -13,16 +18,14 @@
 
 set(:moinitrc_path) { File.join(shared_path, 'monitrc') }
 
-set :deploy_to, "/var/www/html/#{application}"
+default_run_options[:shell] = 'bash'
 
-set :user, "watch-dog-deploy"
+default_environment["RACK_ENV"] = 'production'
 
 role :web, "your.server.com"
 role :app, "your.server.com"
 role :db,  "your.server.com", :primary => true
 
-set :branch, 'origin/master'
-
 after  "deploy:update_code",  "app:symlinks"
 
 namespace :deploy do
@@ -58,6 +61,13 @@
     run "cd #{current_path}; touch tmp/restart.txt"
   end
 
+  desc "Run the database migrations"
+  task :migrations, :except => { :no_release => true } do
+    update_code
+    run "cd #{current_path}; #{rake} RACK_ENV=production db:migrate"
+    restart
+  end
+
   namespace :rollback do
     desc "Moves the repo back to the previous version of HEAD"
     task :repo, :except => { :no_release => true } do
@@ -82,5 +92,7 @@
   desc "Make symlinks"
   task :symlinks do
     run "ln -nfs #{shared_path}/monitrc #{current_path}/monitrc"
+    run "ln -nfs #{shared_path}/config/database.yml #{current_path}/config/database.yml"
+    run "ln -nfs #{shared_path}/config/settings.yml #{current_path}/config/settings.yml"
   end
 end

config/provision.rb

@@ -0,0 +1,52 @@
+require 'highline/import'
+require 'erb'
+
+# Require our stack
+Dir[File.join(File.dirname(__FILE__), 'stack', '*.rb')].each do |lib|
+  require lib
+end
+
+policy :watchdog_stack, :roles => :provision do
+  requires :ruby_enterprise
+  requires :nginx_passenger
+  requires :nginx_conf
+  requires :nginx_init
+  requires :git
+  requires :monit
+  requires :monit_conf
+  requires :rack
+  requires :sinatra
+  requires :sqlite
+  requires :sqlite_driver
+end
+
+deployment do
+  # mechanism for deployment
+  delivery :capistrano do    
+    begin
+      recipes 'Capfile'
+    rescue LoadError
+      recipes 'deploy'
+    end    
+
+    default_run_options[:pty] = true
+    set :use_sudo, true
+    role :provision, ask("Enter the IP address or hostname to provision: ")
+    set :user, ask("Enter your username on the host to provision: ") { |q| q.default = ENV['USER'] }    
+  end
+
+  # source based package installer defaults
+  source do
+    prefix   '/usr/local'
+    archives '/usr/local/sources'
+    builds   '/usr/local/build'
+  end
+end
+
+# Depend on a specific version of sprinkle 
+begin
+  gem 'sprinkle', ">= 0.2.6" 
+rescue Gem::LoadError
+  puts "sprinkle 0.2.6 required.\n Run: `gem install sprinkle`"
+  exit
+end

config/stack/dependencies.rb

@@ -0,0 +1,7 @@
+package :dependencies do
+  apt %w(libglib2.0-dev cmake libpcre3 libpcre3-dev libxml2-dev 
+    libxml2 libxslt-dev libgcrypt11-dev libreadline5-dev zlib1g-dev zlibc
+    libedit-dev gettext logrotate libcurl4-openssl-dev
+    libevent-dev libevent-1.4-2 openssl libssl-dev)
+  requires :build_essential
+end

config/stack/essential.rb

@@ -0,0 +1,7 @@
+package :build_essential do
+  description 'Build tools'
+  apt 'build-essential' do
+    pre :install, 'apt-get update'
+    pre :install, 'apt-get upgrade'
+  end
+end

config/stack/files/nginx-init.sh

@@ -0,0 +1,70 @@
+#! /bin/sh
+
+# Provides: nginx
+# Description: Startup script for nginx webserver on Debian. Place in /etc/init.d and 
+# run 'sudo update-rc.d nginx defaults', or use the appropriate command on your
+# distro.
+#
+# Author:	Ryan Norbauer <ryan.norbauer@gmail.com>
+# Modified:     Geoffrey Grosenbach http://topfunky.com
+
+set -e
+
+PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
+DESC="nginx daemon"
+NAME=nginx
+DAEMON=/usr/local/nginx/sbin/$NAME
+CONFIGFILE=/usr/local/nginx/conf/nginx.conf
+PIDFILE=/var/run/$NAME.pid
+SCRIPTNAME=/etc/init.d/$NAME
+
+# Gracefully exit if the package has been removed.
+test -x $DAEMON || exit 0
+
+d_start() {
+  $DAEMON -c $CONFIGFILE || echo -n " already running"
+}
+
+d_stop() {
+  kill -QUIT `cat $PIDFILE` || echo -n " not running"
+}
+
+d_reload() {
+  kill -HUP `cat $PIDFILE` || echo -n " can't reload"
+}
+
+case "$1" in
+  start)
+  	echo -n "Starting $DESC: $NAME"
+  	d_start
+  	echo "."
+	;;
+  stop)
+  	echo -n "Stopping $DESC: $NAME"
+  	d_stop
+  	echo "."
+	;;
+  reload)
+  	echo -n "Reloading $DESC configuration..."
+  	d_reload
+  	echo "reloaded."
+  ;;
+  restart)
+  	echo -n "Restarting $DESC: $NAME"
+  	d_stop
+  	# One second might not be time enough for a daemon to stop, 
+  	# if this happens, d_start will fail (and dpkg will break if 
+  	# the package is being upgraded). Change the timeout if needed
+  	# be, or change d_stop to have start-stop-daemon use --retry. 
+  	# Notice that using --retry slows down the shutdown process somewhat.
+  	sleep 1
+  	d_start
+  	echo "."
+	;;
+  *)
+	  echo "Usage: $SCRIPTNAME {start|stop|restart|force-reload}" >&2
+	  exit 3
+	;;
+esac
+
+exit 0

config/stack/gems.rb

@@ -0,0 +1,9 @@
+package :rack do
+  gem 'rack'
+  version '1.1.0'
+end
+
+package :sinatra do
+  gem 'sinatra'
+  version '1.1.0'
+end

config/stack/git.rb

@@ -0,0 +1,15 @@
+package :git, :provides => :scm do
+  description 'Git Distributed Version Control'
+  version '1.7.3.5'
+  source "http://kernel.org/pub/software/scm/git/git-#{version}.tar.gz"
+  requires :git_dependencies
+
+  verify do
+    has_file '/usr/local/bin/git'
+  end
+end
+
+package :git_dependencies do
+  description 'Git Build Dependencies'
+  apt 'git-core', :dependencies_only => true
+end

config/stack/monit.rb

@@ -0,0 +1,23 @@
+package :monit, :provides => :monitoring do
+  description 'installs monit - a system monitoring utility which allows an admin to easily monitor files, processes, directories, or devices on your system.'
+
+  apt "monit"
+
+  requires :build_essential, :dependencies
+
+  verify do
+    has_executable "monit"
+  end
+end
+
+package :monit_conf do
+  description "Monit conf file"
+  requires :monit
+  install_path "/etc/monit/monitrc"
+
+  transfer 'config/stack/files/monitrc.conf', "/tmp/monitrc" do
+    post :install, "mv -f /tmp/monitrc /etc/monit/monitrc"
+    post :install, "chown root:root /etc/monit/monitrc"
+    post :install, "chmod u=rw,go= /etc/monit/monitrc"
+  end
+end

config/stack/nginx.rb

@@ -0,0 +1,48 @@
+package :nginx_passenger, :provides => [:webserver, :appserver] do
+  description "Nginx with the Passenger module"
+  version "0.8.54"
+  install_path "/usr/local/nginx"
+
+  source "http://sysoev.ru/nginx/nginx-#{version}.tar.gz" do
+    custom_install "sudo /usr/local/bin/passenger-install-nginx-module " +
+      "--auto --prefix=#{install_path} --nginx-source-dir=/usr/local/build/nginx-#{version} " +
+      "--extra-configure-flags='--with-http_ssl_module'"
+    post :install, "ln -s #{install_path}/sbin/nginx /usr/local/bin/nginx"
+    post :install, "chown -R deploy /usr/local/nginx/logs"
+    post :install, "mkdir /var/www"
+    post :install, "chown -R deploy /var/www"
+  end
+
+  verify do
+    has_directory "/usr/local/nginx"
+    has_file "/usr/local/nginx/conf/nginx.conf"
+    has_executable "/usr/local/nginx/sbin/nginx"
+  end
+
+  requires :ruby_enterprise, :build_essential, :dependencies
+end
+
+package :nginx_init do
+  description "Nginx init.d file for Ubuntu"
+  install_path "/etc/init.d"
+
+  transfer 'config/stack/files/nginx-init.sh', '/tmp/nginx' do
+    post :install, "mv -f /tmp/nginx /etc/init.d/nginx"
+    post :install, "chmod +x /etc/init.d/nginx"
+    post :install, "/usr/sbin/update-rc.d -f nginx defaults"
+    post :install, "/etc/init.d/nginx start"
+  end
+
+  requires :nginx_passenger
+end
+
+package :nginx_conf do
+  description "Sample Nginx conf file"
+  install_path "/usr/local/nginx/conf/nginx.conf"
+
+  transfer 'config/stack/files/nginx.conf.sample', '/tmp/nginx.conf' do
+    post :install, "mv -f /tmp/nginx.conf /usr/local/nginx/conf/nginx.conf"
+  end
+
+  requires :nginx_passenger
+end

config/stack/ree.rb

@@ -0,0 +1,20 @@
+package :ruby_enterprise do
+  description 'Ruby Enterprise Edition'
+  version '1.8.7-2010.02'
+
+  install_path = "/usr/local/ruby-enterprise"
+  binaries = %w(erb gem irb passenger-config passenger-install-apache2-module passenger-install-nginx-module passenger-make-enterprisey passenger-memory-stats passenger-spawn-server passenger-status passenger-stress-test rackup rails rake rdoc ree-version ri ruby testrb)
+  source "http://rubyforge.org/frs/download.php/71096/ruby-enterprise-#{version}.tar.gz" do
+    custom_install './installer --auto=/usr/local/ruby-enterprise'
+
+    binaries.each {|bin| post :install, "ln -s #{install_path}/bin/#{bin} /usr/local/bin/#{bin}" }
+  end
+
+  verify do
+    has_directory install_path
+    has_executable "#{install_path}/bin/ruby"
+    binaries.each {|bin| has_symlink "/usr/local/bin/#{bin}", "#{install_path}/bin/#{bin}" }
+  end
+
+  requires :dependencies
+end

config/stack/sqlite.rb

@@ -0,0 +1,23 @@
+package :sqlite, :provides => :database do
+  description 'SQLite 3 Database'
+  apt 'sqlite3'
+
+  verify do
+    has_executable 'sqlite3'
+  end
+
+  requires :build_essential
+  optional :sqlite_driver
+end
+
+package :sqlite_driver, :provides => :ruby_database_driver do
+  description 'Ruby SQLite database driver'
+  apt 'libsqlite3-dev'
+  gem 'sqlite3-ruby'
+
+  verify do
+    has_gem 'sqlite3-ruby'
+  end
+
+  requires :ruby_enterprise
+end