Capistrano depoly mono with fastcgi

gistfile1.rb

set :stages, %w(devtest systest uat prod)
set :default_stage, "devtest"
set :keep_releases, 5

require 'capistrano/ext/multistage'
require 'nokogiri'

set :use_sudo, false
set :normalize_asset_timestamps, false

set :deploy_via, :copy
set :copy_dir, "." 
set :copy_remote_dir, "/tmp/capistrano"
set :repository, "./artifacts"
set :scm, :none

ssh_options[:keys] = Dir["./ssh/*id_rsa"]

namespace :remote do

 desc <<-DESC
  Create directory required by copy_remote_dir.
 DESC
 task :create_copy_remote_dir, :roles => :app do
  print "creating #{copy_remote_dir}.\n"
  run "mkdir -p #{copy_remote_dir}"
  run "mkdir -p #{deploy_to}/releases"
 end

 desc <<-DESC
  delete the extra public folder that capistrano creates
 DESC
 task :delete_public_folder, :roles => :app do
  print "deleteing public folder.\n"
  run "rm -r #{latest_release}/public"
  run "rm -r #{latest_release}/tmp"
  run "rm -r #{latest_release}/log"
 end
end

namespace :sdigital do

 task :start_temp_fastcgi_server, :roles => :app do
  run "nohup fastcgi-mono-server4 /applications=/:#{latest_release} /filename=/tmp/SOCK-#{fqdn}-prerelease /socket=unix >/dev/null 2>&1&"
 end

 desc <<-DESC
  (backup production socket and) move staging to production
 DESC
 task :release, :roles => :app do
  run "ln /tmp/SOCK-#{fqdn} /tmp/SOCK-#{fqdn}-backup || true" # we don't care if there was no site before
  run "mv /tmp/SOCK-#{fqdn}-prerelease /tmp/SOCK-#{fqdn}"
 end

 task :stop_previous_release_of_fastcgi_server, :roles => :app do
  begin
   # FIXME: wait 10 secs
   run "if [ -e /tmp/SOCK-#{fqdn}-backup ]; then kill `lsof -t /tmp/SOCK-#{fqdn}-backup`; else echo 'no backup found'; fi"
  rescue
   #dont care
  end
 end

 desc <<-DESC
  check staging is up and running
 DESC
 task :hit_temp_status, :roles => :app do
  attempt_number = 0
  begin
   attempt_number = attempt_number + 1
   current_host = capture("echo $CAPISTRANO:HOST$").strip

   curl_flags = "--verbose --silent -w %{http_code} --retry 5 --fail -X GET -o curl.output -H 'Host: #{fqdn}-prerelease'"
   curl_command = "curl #{curl_flags} http://#{current_host}/status"
   status_code = capture(curl_command)
   if status_code != "200"
    raise "error, status code was not 200 but #{status_code}"
   end
  rescue Exception => ex
   retry if attempt_number < 10
   puts "##teamcity[message text='Could not curl site.' errorDetails='Failed bring site up. See output above in the logs' status='ERROR']"
   error = CommandError.new("Failed to curl the site on #{current_host}")
   raise error
  end
 end

 task :indicate_success, :roles => :app do
  run("curl --silent -w %{http_code} --retry 2 -X GET -o curl.output -H 'Host: #{fqdn}' http://localhost/status")
 end

end

before 'deploy', 'remote:create_copy_remote_dir', 'sdigital:replace_config'
after  'deploy:update_code', 'sdigital:start_temp_fastcgi_server'
before 'deploy:create_symlink', 'sdigital:hit_temp_status'
after  'deploy', 'remote:delete_public_folder', 'deploy:cleanup', 'sdigital:release', 'sdigital:indicate_success', 'sdigital:stop_previous_release_of_fastcgi_server'