Unicorn找不到使用capistrano的捆綁包

Question

在部署時，我似乎無法讓捆綁器與unicorn一起工作。 我正在使用capistrano進行部署。

在部署時查看unicorn日志，我收到以下錯誤：

/home/deployer/apps/my-app/releases/20130417145122)
I, [2013-04-17T14:53:04.982369 #6565]  INFO -- : forked child re-executing...
/home/deployer/.rvm/gems/ruby-1.9.3-p392@global/gems/bundler-1.3.5/lib/bundler/definition.rb:16:in `build': /home/deployer/apps/my-app/releases/20130417020329/Gemfile not found (Bundler::GemfileNotFound)
  from /home/deployer/.rvm/gems/ruby-1.9.3-p392@global/gems/bundler-1.3.5/lib/bundler.rb:148:in `definition'
  from /home/deployer/.rvm/gems/ruby-1.9.3-p392@global/gems/bundler-1.3.5/lib/bundler.rb:116:in `setup'
  from /home/deployer/.rvm/gems/ruby-1.9.3-p392@global/gems/bundler-1.3.5/lib/bundler/setup.rb:17:in `<top (required)>'
  from /home/deployer/.rvm/rubies/ruby-1.9.3-p392/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
  from /home/deployer/.rvm/rubies/ruby-1.9.3-p392/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
E, [2013-04-17T14:53:05.054942 #18166] ERROR -- : reaped #<Process::Status: pid 6565 exit 1> exec()-ed

Capistrano正在清理應用程序的最后5個版本，我看到Bundler正在嘗試訪問不存在的（最后刪除的）版本。

我發現這個代碼放在unicorn.rb.erb中，但它沒有幫助（我也試過硬編碼）： http ：//davidvollbracht.com/blog/headachenewunicorn-capistrano-bundler-usr2

before_exec do |server|
  ENV['BUNDLE_GEMFILE'] = "<%= current_path %>/Gemfile"
end

在部署我的代碼之后，我啟動並停止了NGINX，並啟動並停止了獨角獸，但我遇到了同樣的問題。

關於堆棧溢出的原始帖子在這里，但我認為它與資產管道有關： 資產管道在rails生產環境中不起作用

思考？

這是我的unicorn.rb.erb文件：

working_directory "<%= current_path %>"
pid "<%= unicorn_pid %>"
stderr_path "<%= unicorn_log %>"
stdout_path "<%= unicorn_log %>"

listen "/tmp/unicorn.<%= application %>.sock"
worker_processes <%= unicorn_workers %>
timeout 30

preload_app true

before_exec do |server|
  ENV['BUNDLE_GEMFILE'] = "<%= current_path %>/Gemfile"
end

before_fork do |server, worker|
  # Disconnect since the database connection will not carry over
  if defined? ActiveRecord::Base
    ActiveRecord::Base.connection.disconnect!
  end

  # Quit the old unicorn process
  old_pid = "#{server.config[: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|
  # Start up the database connection again in the worker
  if defined?(ActiveRecord::Base)
    ActiveRecord::Base.establish_connection
  end
end

這是我的unicorn_init.sh文件：

#!/bin/sh
### BEGIN INIT INFO
# Provides:          unicorn
# Required-Start:    $remote_fs $syslog
# Required-Stop:     $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Manage unicorn server
# Description:       Start, stop, restart unicorn server for a specific application.
### END INIT INFO
set -e

# Feel free to change any of the following variables for your app:
TIMEOUT=${TIMEOUT-60}
APP_ROOT=/home/deployer/apps/my-app/current
PID=$APP_ROOT/tmp/pids/unicorn.pid
CMD="cd $APP_ROOT; bundle exec unicorn -D -c $APP_ROOT/config/unicorn.rb -E production"
AS_USER=deployer
set -u

OLD_PIN="$PID.oldbin"

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

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

run () {
  if [ "$(id -un)" = "$AS_USER" ]; then
    eval $1
  else
    su -c "$1" - $AS_USER
  fi
}

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

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

Answer 1

你應該使用Capistrano的bundler安裝任務，如果你還沒有： https ： //github.com/carlhuda/bundler/blob/master/lib/bundler/capistrano.rb

gem部署將在部署時自動安裝在/ home / deployer / apps / my-app / shared / bundle目錄中，並在各個版本中保持不變。

Answer 2

我遇到了類似的問題，使用“before_fork”塊來設置BUNDLE_GEMFILE並沒有真正解決問題，盡管Rails應用程序認為ENV ['BUNDLE_GEMFILE']通過當前/符號鏈接指向Gemfile。

我仍然不完全理解它，但我們也在生產中使用RVM。 我設法通過添加以下內容來解決問題：

export BUNDLE_GEMFILE="${APP_ROOT}/Gemfile"

到init腳本。 這會解決你的問題嗎？