将Sinatra 2.0.0beta2的Rails 5应用程序部署到Amazon Linux AMI时出错

Question

我在Sinatra 2.0.0 beta 2中遇到异常,Rails 5部署到Amazon Linux AMI v 2.1.6.我已经在Sinatra Github repro中发布了这个问题,但有人建议我在这里发布.

编辑:我使用Elastic Beanstalk遇到了这个问题,但正如@neal报道的那样,Capistrano部署到EC2也会发生这种情况.

重现问题的步骤如下:

1. 在干净的目录中创建一个新的Rails 5应用程序

   $ gem install rails
   $ rails --version
   (confirm Rails 5.0.0.1)
   $ rails new test-app
   

将此行添加到gemfile:

gem 'sinatra', '2.0.0.beta2'

2. 创建一个新的Elastic Beanstalk Web环境,类型为"运行Ruby 2.3(Puma)的64位Amazon Linux 2016.03 v2.1.6",Web服务器.使用所有默认值,但将实例大小更改为t2.small(任何较小的内容都没有足够的内存来部署)

3. 使用Web控制台向Elastic Beanstalk环境添加两个新环境变量SECRET_KEY_BASE =(为此设置一个值)RAILS_ENV = production

4. 将应用程序部署到此新环境,例如使用eb命令行工具.

5. 再次部署它
6. 通过Elastic Beanstalk控制台来记录日志

结果:

-------------------------------------
/var/log/puma/puma.log
-------------------------------------
=== puma startup: 2016-08-26 02:39:12 +0000 ===
=== puma startup: 2016-08-26 02:39:12 +0000 ===
[15926] - Worker 0 (pid: 15929) booted, phase: 0
[15926] - Gracefully shutting down workers...
/opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/sinatra-2.0.0.beta2/lib/sinatra/main.rb:11:in `expand_path': No such file or directory - getcwd (Errno::ENOENT)
    from /opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/sinatra-2.0.0.beta2/lib/sinatra/main.rb:11:in `block in <class:Application>'
    from (eval):1:in `run?'
    from /opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/sinatra-2.0.0.beta2/lib/sinatra/main.rb:26:in `block in <module:Sinatra>'
    from /opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/puma-3.6.0/lib/puma/cluster.rb:120:in `fork'
    from /opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/puma-3.6.0/lib/puma/cluster.rb:120:in `block in spawn_workers'
    from /opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/puma-3.6.0/lib/puma/cluster.rb:116:in `times'
    from /opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/puma-3.6.0/lib/puma/cluster.rb:116:in `spawn_workers'
    from /opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/puma-3.6.0/lib/puma/cluster.rb:426:in `run'
    from /opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/puma-3.6.0/lib/puma/launcher.rb:172:in `run'
    from /opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/puma-3.6.0/lib/puma/cli.rb:74:in `run'
    from /opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/puma-3.6.0/bin/puma:10:in `<top (required)>'
    from /opt/rubies/ruby-2.3.1/bin/puma:23:in `load'
    from /opt/rubies/ruby-2.3.1/bin/puma:23:in `<top (required)>'
    from /opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.12.1/lib/bundler/cli/exec.rb:63:in `load'
    from /opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.12.1/lib/bundler/cli/exec.rb:63:in `kernel_load'
    from /opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.12.1/lib/bundler/cli/exec.rb:24:in `run'
    from /opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.12.1/lib/bundler/cli.rb:304:in `exec'
    from /opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.12.1/lib/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
    from /opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.12.1/lib/bundler/vendor/thor/lib/thor/invocation.rb:126:in `invoke_command'
    from /opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.12.1/lib/bundler/vendor/thor/lib/thor.rb:359:in `dispatch'
    from /opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.12.1/lib/bundler/vendor/thor/lib/thor/base.rb:440:in `start'
    from /opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.12.1/lib/bundler/cli.rb:11:in `start'
    from /opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.12.1/exe/bundle:27:in `block in <top (required)>'
    from /opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.12.1/lib/bundler/friendly_errors.rb:98:in `with_friendly_errors'
    from /opt/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/bundler-1.12.1/exe/bundle:19:in `<top (required)>'
    from /opt/rubies/ruby-2.3.1/bin/bundle:23:in `load'
    from /opt/rubies/ruby-2.3.1/bin/bundle:23:in `<main>'
[15926] === puma shutdown: 2016-08-26 02:41:17 +0000 ===
[15926] - Goodbye!
=== puma startup: 2016-08-26 02:41:20 +0000 ===
=== puma startup: 2016-08-26 02:41:20 +0000 ===
[16296] - Worker 0 (pid: 16299) booted, phase: 0

Answer 1

这不仅仅是一个弹性豆茎问题，我可以确认在使用 capistrano / EC2 Ubuntu / nginx 部署 Rails 5 应用程序时也会发生这种情况