Unicorn With RVM

nginx.conf

upstream unicorn {
  server unix:/tmp/unicorn.arcsite.sock fail_timeout=0;
}

server {
  listen 80 default deferred;
  # server_name example.com;
  root /home/deployer/apps/arcsite/current/public;

  location ^~ /assets/ {
    gzip_static on;
    expires max;
    add_header Cache-Control public;
  }

  try_files $uri/index.html $uri @unicorn;
  location @unicorn {
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_redirect off;
    proxy_pass http://unicorn;
  }

  error_page 500 502 503 504 /500.html;
  client_max_body_size 4G;
  keepalive_timeout 10;
}

root.error

Starting - /home/deployer/.rvm/gems/ruby-1.9.3-p392@arcsite_mysql/gems/unicorn-4.6.2/lib/unicorn/configurator.rb:634:in `parse_rackup_file': rackup file (config.ru) not readable (ArgumentError)
        from /home/deployer/.rvm/gems/ruby-1.9.3-p392@arcsite_mysql/gems/unicorn-4.6.2/lib/unicorn/configurator.rb:77:in `reload'
        from /home/deployer/.rvm/gems/ruby-1.9.3-p392@arcsite_mysql/gems/unicorn-4.6.2/lib/unicorn/configurator.rb:68:in `initialize'
        from /home/deployer/.rvm/gems/ruby-1.9.3-p392@arcsite_mysql/gems/unicorn-4.6.2/lib/unicorn/http_server.rb:108:in `new'
        from /home/deployer/.rvm/gems/ruby-1.9.3-p392@arcsite_mysql/gems/unicorn-4.6.2/lib/unicorn/http_server.rb:108:in `initialize'
        from /home/deployer/.rvm/gems/ruby-1.9.3-p392@arcsite_mysql/gems/unicorn-4.6.2/bin/unicorn:126:in `new'
        from /home/deployer/.rvm/gems/ruby-1.9.3-p392@arcsite_mysql/gems/unicorn-4.6.2/bin/unicorn:126:in `<top (required)>'
        from /home/deployer/.rvm//gems/ruby-1.9.3-p392@arcsite_mysql/bin/unicorn:19:in `load'
        from /home/deployer/.rvm//gems/ruby-1.9.3-p392@arcsite_mysql/bin/unicorn:19:in `<main>'
        from /home/deployer/.rvm//gems/ruby-1.9.3-p392@arcsite_mysql/bin/ruby_noexec_wrapper:14:in `eval'
        from /home/deployer/.rvm//gems/ruby-1.9.3-p392@arcsite_mysql/bin/ruby_noexec_wrapper:14:in `<main>'
Failed!

unicron.rb

# RAILS_ROOT/config/unicorn.rb
# Search for "# SET ME!" and replace these with your own settings!.

# Set environment to development unless something else is specified
env = ENV["RAILS_ENV"] || "development"
RAILS_ROOT = "/home/deployer/apps/arcsite/current"


ENV['BUNDLE_GEMFILE'] = File.expand_path('../Gemfile', File.dirname(__FILE__))
require 'bundler/setup'

pid "#{RAILS_ROOT}/tmp/pids/unicorn.pid"

# See http://unicorn.bogomips.org/Unicorn/Configurator.html for complete
# documentation.
worker_processes 10 # SET ME!

# listen on both a Unix domain socket and a TCP port,
# we use a shorter backlog for quicker failover when busy
listen "/tmp/unicorn.arcsite.sock", :backlog => 1024 # SET ME!

# Preload our app for more speed
preload_app true

GC.respond_to?(:copy_on_write_friendly=) and
  GC.copy_on_write_friendly = true

# nuke workers after 30 seconds instead of 60 seconds (the default)
timeout 60

# Production specific settings
if env == "production"
  # Help ensure your application will always spawn in the symlinked
  # "current" directory that Capistrano sets up.
  working_directory RAILS_ROOT

  # feel free to point this anywhere accessible on the filesystem
  user 'deployer', 'sudo'
  shared_path = "/home/deployer/apps/arcsite/current"

  stderr_path "#{shared_path}/log/unicorn.stderr.log"
  stdout_path "#{shared_path}/log/unicorn.stdout.log"
end

before_fork do |server, worker|
  # the following is highly recomended for Rails + "preload_app true"
  # as there's no need for the master process to hold a connection
  if defined?(ActiveRecord::Base)
    ActiveRecord::Base.connection.disconnect!
  end

  # Before forking, kill the master process that belongs to the .oldbin PID.
  # This enables 0 downtime deploys.
  old_pid = "#{RAILS_ROOT}/tmp/pids/unicorn.pid.oldbin"
  if File.exists?(old_pid) && server.pid != old_pid
    begin
      Process.kill("QUIT", File.read(old_pid).to_i)
    rescue Errno::ENOENT, Errno::ESRCH
      # someone else did our job for us
    end
  end
end

after_fork do |server, worker|
  # the following is *required* for Rails + "preload_app true",
  if defined?(ActiveRecord::Base)
    ActiveRecord::Base.establish_connection
  end

  # if preload_app is true, then you may also want to check and
  # restart any other shared sockets/descriptors such as Memcached,
  # and Redis.  TokyoCabinet file handles are safe to reuse
  # between any number of forked children (assuming your kernel
  # correctly implements pread()/pwrite() system calls)
end