nginx-unicorn.conf.erb

upstream <%= @app.id %> {
  server unix:<%= @app.socket.to_s %> fail_timeout=0;
}

server {
  listen 80;
  root <%= @app.docroot.to_s %>;

  # arb change

  client_max_body_size 50M;

  <%= "server_name #{@app.web.server_names_s};" if @app.web.server_names? %>

  error_log <%= @app.log_path  + 'nginx-error.log' %>;
  access_log <%= @app.log_path + 'nginx-access.log' %> main;

  <% if auth = @app.basic_auth %>
    auth_basic            "<%= auth.name %>";
    auth_basic_user_file  <%= @app.web_passwords_file %>;
  <% end %>

  location / {
    proxy_set_header  X-Real-IP        $remote_addr;
    proxy_set_header  X-Forwarded-For  $proxy_add_x_forwarded_for;
    proxy_set_header  Host             $http_host;
    proxy_redirect    off;

    if (!-f $request_filename) {
      proxy_pass        http://<%= @app.id %>;
      break;
    }
  }
  
}

uncorn.sh.erb

#!/bin/sh
set -e
# Example init script, this can be used with nginx, too,
# since nginx and unicorn accept the same signals

# Feel free to change any of the following variables for your app:
TIMEOUT=${TIMEOUT-60}
APP_ROOT=<%= @app.current_path %>
PID=<%= @app.unicorn.pid %>
CMD="/usr/local/bin/unicorn_rails -D -E production -c <%= @app.unicorn.config %>"

# monit cleans the environment. We need HOME for bundler to work.
if [ -z "$USER" ]; then
  USER=`whoami`
fi

if [ -z "$HOME" ]; then
  HOME=/home/$USER
fi

export USER
export HOME

INIT_CONF=$APP_ROOT/config/init.conf

action="$1"
set -u

test -f "$INIT_CONF" && . $INIT_CONF

old_pid="$PID.oldbin"

cd $APP_ROOT || exit 1

env

sig () {
	test -s "$PID" && kill -$1 `cat $PID`
}

oldsig () {
	test -s $old_pid && kill -$1 `cat $old_pid`
}

workersig () {
  workerpid="<%= @app.unicorn.worker_pid['$2'] %>"
  
  test -s "$workerpid" && kill -$1 `cat $workerpid`
}


case $action in
start)
	sig 0 && echo >&2 "Already running" && exit 0
	$CMD
	;;
stop)
	sig QUIT && exit 0
	echo >&2 "Not running"
	;;
force-stop)
	sig TERM && exit 0
	echo >&2 "Not running"
	;;
restart|reload)
	sig HUP && echo reloaded OK && exit 0
	echo >&2 "Couldn't reload, starting '$CMD' instead"
	$CMD
	;;
upgrade)
	if sig USR2 && sleep 2 && sig 0 && oldsig QUIT
	then
		n=$TIMEOUT
		while test -s $old_pid && test $n -ge 0
		do
			printf '.' && sleep 1 && n=$(( $n - 1 ))
		done
		echo

		if test $n -lt 0 && test -s $old_pid
		then
			echo >&2 "$old_pid still exists after $TIMEOUT seconds"
			exit 1
		fi
		exit 0
	fi
	echo >&2 "Couldn't upgrade, starting '$CMD' instead"
	$CMD
	;;
kill_worker)
	workersig QUIT $2 && exit 0
	echo >&2 "Worker not running"
	;;
reopen-logs)
	sig USR1
	;;
*)
	echo >&2 "Usage: $0 <start|stop|restart|upgrade|force-stop|reopen-logs>"
	exit 1
	;;
esac

unicorn.rb.erb

# Sample verbose configuration file for Unicorn (not Rack)
#
# This configuration file documents many features of Unicorn
# that may not be needed for some applications. See
# http://unicorn.bogomips.org/examples/unicorn.conf.minimal.rb
# for a much simpler configuration file.
#
# See http://unicorn.bogomips.org/Unicorn/Configurator.html for complete
# documentation.

# Use at least one worker per core if you're on a dedicated server,
# more will usually help for _short_ waits on databases/caches.
worker_processes <%= @app.unicorn.workers %>

# Help ensure your application will always spawn in the symlinked
# "current" directory that Capistrano sets up.
working_directory "<%= @app.current_path %>" # available in 0.94.0+

# listen on both a Unix domain socket and a TCP port,
# we use a shorter backlog for quicker failover when busy
listen "<%= @app.socket %>", :backlog => 64

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

# feel free to point this anywhere accessible on the filesystem
pid "<%= @app.unicorn.pid %>"

# By default, the Unicorn logger will write to stderr.
# Additionally, ome applications/frameworks log to stderr or stdout,
# so prevent them from going to /dev/null when daemonized here:
stderr_path "<%= @app.log_path + "unicorn.stderr.log" %>"
stdout_path "<%= @app.log_path + "unicorn.stdout.log" %>"

# combine REE with "preload_app true" for memory savings
# http://rubyenterpriseedition.com/faq.html#adapt_apps_for_cow
preload_app true
GC.respond_to?(:copy_on_write_friendly=) and
  GC.copy_on_write_friendly = true

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
  defined?(ActiveRecord::Base) and
    ActiveRecord::Base.connection.disconnect!

  # The following is only recommended for memory/DB-constrained
  # installations.  It is not needed if your system can house
  # twice as many worker_processes as you have configured.
  #
  # # This allows a new master process to incrementally
  # # phase out the old master process with SIGTTOU to avoid a
  # # thundering herd (especially in the "preload_app false" case)
  # # when doing a transparent upgrade.  The last worker spawned
  # # will then kill off the old master process with a SIGQUIT.
  # old_pid = "#{server.config[:pid]}.oldbin"
  # if old_pid != server.pid
  #   begin
  #     sig = (worker.nr + 1) >= server.worker_processes ? :QUIT : :TTOU
  #     Process.kill(sig, File.read(old_pid).to_i)
  #   rescue Errno::ENOENT, Errno::ESRCH
  #   end
  # end
  #
  # # *optionally* throttle the master from forking too quickly by sleeping
  # sleep 1
end

after_fork do |server, worker|
  # per-process listener ports for debugging/admin/migrations
  # addr = "127.0.0.1:#{9293 + worker.nr}"
  # server.listen(addr, :tries => -1, :delay => 5, :tcp_nopush => true)

  # the following is *required* for Rails + "preload_app true",
  defined?(ActiveRecord::Base) and
    ActiveRecord::Base.establish_connection

  child_pid = "<%= @app.unicorn.worker_pid['#{worker.nr}'] %>"
  open(child_pid,'w') {|f| f << $$}

  # 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