如何在安装了 capistrano 3 和 rvm 的情况下 运行 rails 命令

How to run rails commands in production with capistrano 3 and rvm installed

我正在努力获得对 Capistrano 的正确理解。我想在生产中使用 运行 rails 命令,但似乎找不到相应的 binstub。事实上,我的应用程序名称下有 current/shared/ 目录,但两者的 none 都有一个 bin/ 目录和 rails binstub .

我也是构建 Capistrano 任务的新手。我发现 this gem 例如 运行 rails c 与 capistrano,但它需要 current/bin 目录中的 rails binstub,当然我不需要有。

编辑:我尝试了 capistrano-rails-console gem but even if I add the ssh_options like this,我最终得到:

00:00 rails:console
      01 ~/.rvm/bin/rvm default do bundle exec rails console production
Usage:
  rails new APP_PATH [options]

Options:
  -r, [--ruby=PATH]                                      # Path to the Ruby binary of your choice
                                                         # Default: /home/ubuntu/.rvm/rubies/ruby-2.3.1/bin/ruby
...

好像没有识别任何 binstub。

我也遵循了 this question 的答案,但是 none 的方法似乎对我有用。我 运行 Linux 上的应用程序所以 iterm 不是我的选择,其他答案中链接的 GitHub 片段要么以:

结尾
cap aborted!
NameError: undefined local variable or method `current_task' for #<SSHKit::Backend::Netssh:0x00000001f15800>
Did you mean?  current_path

或:

00:00 rails:console
      Connecting with <my_username>@<my_host>
bash: bundle: command not found
Connection to <my_host> closed.

所以我认为这是一个 rvm 问题,但我完全不知道如何处理它。

我注意到,当我 运行 cap production deploy 时,以下命令是 运行 等:

~/.rvm/bin/rvm default do bundle exec rake assets:precompile
~/.rvm/bin/rvm default do bundle exec rake db:migrate

但是如果我 运行 它们在我的生产服务器上,我会得到以下响应:

Could not locate Gemfile or .bundle/ directory

供您参考,这是我的 config/deploy.rb:

set :scm,             :git
set :repo_url,        '<git_repo>'
set :application,     '<app_name>'
set :user,            '<production_user>'
set :puma_threads,    [4, 16]
set :puma_workers,    0
set :pty,             true
set :use_sudo,        false
set :stage,           :production
set :deploy_via,      :remote_cache
set :deploy_to,       "/home/#{fetch(:user)}/#{fetch(:application)}"
set :puma_bind,       "unix://#{shared_path}/tmp/sockets/#{fetch(:application)}-puma.sock"
set :puma_state,      "#{shared_path}/tmp/pids/puma.state"
set :puma_pid,        "#{shared_path}/tmp/pids/puma.pid"
set :puma_access_log, "#{release_path}/log/puma.error.log"
set :puma_error_log,  "#{release_path}/log/puma.access.log"
set :ssh_options,     { forward_agent: true, user: fetch(:user), keys: %w(~/.ssh/id_rsa.pub) }
set :puma_preload_app, true
set :puma_worker_timeout, nil
set :puma_init_active_record, true  # Change to false when not using ActiveRecord

## Defaults:
# set :branch,        :master
# set :format,        :pretty
# set :log_level,     :debug
# set :keep_releases, 5

## Linked Files & Directories (Default None):
set :linked_files, %w{config/application.yml config/database.yml config/secrets.yml}
set :linked_dirs,  %w{bin log tmp/pids tmp/cache tmp/sockets vendor/bundle public/system public/uploads}

# Bonus! Colors are pretty!
def red(str)
  "\e[31m#{str}\e[0m"
end

# Figure out the name of the current local branch
def current_git_branch
  branch = `git symbolic-ref HEAD 2> /dev/null`.strip.gsub(/^refs\/heads\//, '')
  puts "Deploying branch #{red branch}"
  branch
end

# Set the deploy branch to the current branch
set :branch, current_git_branch

namespace :puma do
  desc 'Create Directories for Puma Pids and Socket'
  task :make_dirs do
    on roles(:app) do
      execute "mkdir #{shared_path}/tmp/sockets -p"
      execute "mkdir #{shared_path}/tmp/pids -p"
    end
  end

  before :start, :make_dirs
end

namespace :assets do
  desc "compile assets locally and upload before finalize_update"
  task :deploy do
      %x[bundle exec rake assets:clean && bundle exec rake assets:precompile]
      ENV['COMMAND'] = " mkdir '#{release_path}/public/assets'"
      invoke
      upload '/#{app_dir}/public/assets', "#{release_path}/public/assets", {:recursive => true}
  end
end

namespace :deploy do
  desc "Make sure local git is in sync with remote."
  task :check_revision do
    on roles(:app) do
      #unless `git rev-parse HEAD` == `git rev-parse origin/master`
      #  puts "WARNING: HEAD is not the same as origin/master"
      #  puts "Run `git push` to sync changes."
      #  exit
      #end
    end
  end

  desc 'Initial Deploy'
  task :initial do
    on roles(:app) do
      before 'deploy:restart', 'puma:start'
      invoke 'deploy'
    end
  end

  task :fix_absent_manifest_bug do
    on roles(:web) do
      within release_path do  execute :touch,
        release_path.join('public', fetch(:assets_prefix), 'manifest-fix.temp')
      end
   end
  end


  # desc 'Restart application'
  # task :restart do
  #   on roles(:app), in: :sequence, wait: 5 do
  #     invoke 'puma:restart'
  #   end
  # end

  before :starting,     :check_revision
  after  :finishing,    :compile_assets
  after  :finishing,    :cleanup
  after  :finishing,    :restart
  after  :updating, 'deploy:fix_absent_manifest_bug'
end

# ps aux | grep puma    # Get puma pid
# kill -s SIGUSR2 pid   # Restart puma
# kill -s SIGTERM pid   # Stop puma

和我的 Capfile:

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

# Include default deployment tasks
require 'capistrano/deploy'

# Include tasks from other gems included in your Gemfile
#
# For documentation on these, see for example:
#
#   https://github.com/capistrano/rvm
#   https://github.com/capistrano/rbenv
#   https://github.com/capistrano/chruby
#   https://github.com/capistrano/bundler
#   https://github.com/capistrano/rails
#   https://github.com/capistrano/passenger
#
# require 'capistrano/rvm'
# require 'capistrano/rbenv'
# require 'capistrano/chruby'
# require 'capistrano/bundler'
# require 'capistrano/rails/assets'
# require 'capistrano/rails/migrations'
# require 'capistrano/passenger'

require 'capistrano/setup'
require 'capistrano/deploy'

require 'capistrano/rails'
require 'capistrano/bundler'
require 'capistrano/rvm'
require 'capistrano/puma'

require 'capistrano/rails/collection'

# Load custom tasks from `lib/capistrano/tasks` if you have any defined
Dir.glob('lib/capistrano/tasks/*.rake').each { |r| import r }

我错过了什么吗?提前致谢

this Upwork freelancer 的帮助下解决了。

解决步骤是:

  • 删除本地的 binstubs
  • set :bundle_binstubs, nilconfig/deploy.rb
  • :linked_dirs 列表中删除 bin 目录(在 .gitignore 中添加 /bin
  • 推送更改并 运行 cap production deploy
  • 使用 rake rails:update:bin
  • 重新创建 binstub
  • 注释掉 set :bundle_binstubs, nil
  • 再次添加:linked_dirs中的bin目录
  • 像这样修改 config/deploy.rb 文件:
namespace :deploy do
  task :regenerate_bins do
    on roles(:web) do
      within release_path do
        execute :bundle, 'exec rake rails:update:bin'
      end
    end
  end
...

...
after  :finishing,    :regenerate_bins
...
  • 取消注释 set :bundle_binstubs, nil 并再次从 :linked_dirs 中删除 bin
  • 推送更改并部署

在此之后,binstub 位于 current/bin 目录中,而不是 shared/bin 目录中(在 Rails 4 和 5 中)