每当使用gem时都无法通过capistrano进行部署

Question

我正在尝试使用Capistraino部署Ruby on Rails应用程序。 我有一份计划为使用everyever的工作，但是尝试部署时总是出现错误。

下面的config deploy.rb错误

SSHKit::Runner::ExecuteError: Exception while executing as [email protected]: bundle exit status: 1
bundle stdout: Nothing written
bundle stderr: config/schedule.rb:2:in `block in initialize': uninitialized constant Whenever::JobList::Delayed (NameError)
    from /home/deploy/app/company/shared/bundle/ruby/2.1.0/gems/whenever-0.9.4/lib/whenever/job_list.rb:44:in `every'
    from config/schedule.rb:1:in `initialize'

deploy.rb

# delayed-job
set :delayed_job_workers, 2
set :delayed_job_prefix, :drnow
set :delayed_job_roles, [:app, :background]

# whenever
set :whenever_identifier, -> { "#{fetch(:application)}_#{fetch(:stage)}" }
set :whenever_command, 'bundle exec whenever'
set :whenever_environment, defer { stage }

如果我将deploy.rb更改为

deploy.rb

# whenever
set :whenever_identifier, -> { "#{fetch(:application)}_#{fetch(:stage)}" }
set :whenever_command, 'bundle exec whenever'
set :whenever_environment, ->{ fetch :rails_env, fetch(:stage, "production") }

我得到这个错误

错误

DEBUG [e84fec09] Command: bundle exec whenever
DEBUG [e84fec09]    Could not locate Gemfile or .bundle/ directory
(Backtrace restricted to imported tasks)
cap aborted!
SSHKit::Runner::ExecuteError: Exception while executing as [email protected]: bundle exec whenever exit status: 10
bundle exec whenever stdout: Could not locate Gemfile or .bundle/ directory
bundle exec whenever stderr: Nothing written

SSHKit::Command::Failed: bundle exec whenever exit status: 10
bundle exec whenever stdout: Could not locate Gemfile or .bundle/ directory
bundle exec whenever stderr: Nothing written

Tasks: TOP => whenever:update_crontab
(See full trace by running task with --trace)
The deploy has failed with an error: Exception while executing as [email protected]: bundle exec whenever exit status: 10
bundle exec whenever stdout: Could not locate Gemfile or .bundle/ directory
bundle exec whenever stderr: Nothing written

Capfile

# Load DSL and set up stages
require 'capistrano/setup'

# Include default deployment tasks
require 'capistrano/deploy'
require 'capistrano/rails'
require 'capistrano/rvm'
require 'capistrano/faster_assets'
require 'capistrano/delayed-job'
require 'whenever/capistrano'
# Load custom tasks from `lib/capistrano/tasks' if you have any defined
Dir.glob('lib/capistrano/tasks/*.rake').each { |r| import r }

schedule.rb

unless ENV['RAILS_ENV'] == 'test'
  every 30.minutes do
    Delayed::Job.enqueue(UpdateScoresJob.new(Article.published.all.pluck(:id)), priority: 1, run_at: 1.minute.from_now)
  end
end

Answer 1

似乎正在抱怨无法找到常量Delayed::Job 。 根据此github问题 ，完整的Rails环境未加载到您的schedule.rb文件中。 您可能希望将“延迟工作”队列放入跑步者中，如下所示：

unless ENV['RAILS_ENV'] == 'test'
  every 30.minutes do
    runner 'Delayed::Job.enqueue(UpdateScoresJob.new(Article.published.all.pluck(:id)), priority: 1, run_at: 1.minute.from_now)'
  end
end