Capistrano：my.server.ipadress 上不存在链接文件 database.yml

Question

在我尝试通过 capistrano 将我的应用程序部署到我的服务器后，我收到此错误消息：

DEBUG [605f198a] Finished in 0.084 seconds with exit status 1 (failed).
ERROR linked file /home/deploy/myrailsapp/shared/config/database.yml does not exist on xx.xxx.xx.xxx
(Backtrace restricted to imported tasks)
cap aborted!
SSHKit::Runner::ExecuteError: Exception while executing as deploy@xx.xxx.xx.xxx: exit

SystemExit: exit

Tasks: TOP => deploy:check:linked_files
(See full trace by running task with --trace)
The deploy has failed with an error: Exception while executing as deploy@xx.xxx.xx.xxx: exit

我的deploy.rb是：

set :deploy_to, '/home/deploy/myrailsapp'
set :linked_files, %w{config/database.yml}
set :linked_dirs, %w{bin log tmp/pids tmp/cache tmp/sockets vendor/bundle public/system}



namespace :deploy do
  desc 'Restart application'
  task :restart do
    on roles(:app), in: :sequence, wait: 5 do
      execute :touch, release_path.join('tmp/restart.txt')
    end
  end
  after :publishing, 'deploy:restart'
  after :finishing, 'deploy:cleanup'
end


namespace :deploy do
  after :restart, :clear_cache do
    on roles(:web), in: :groups, limit: 3, wait: 10 do
      # Here we can do anything such as:
      # within release_path do
      #   execute :rake, 'cache:clear'
      # end
    end
  end
end

我试过这个图 https://www.gorails.com/deploy/ubuntu/14.04，这是我第一次尝试使用 capistrano。

Answer 1

只需手动创建 /home/deploy/myrailsapp/shared/config/database.yml 文件并进行调整。

Capistrano 不会立即创建（或管理）配置文件。因此，您应该使用自己的 Capistrano 脚本、Puppet、Chef、Ansible 工具手动或自动执行此操作。

Answer 2

因为我更喜欢将我的文件集中在部署服务器上，所以我使用此任务将配置文件从配置目录部署到应用服务器上的链接文件目录。

这使用 rsync，因为我使用 capistrano-rsync 进行部署。

namespace :deploy do

  task :copy_config do
    on release_roles :app do |role|
      fetch(:linked_files).each do |linked_file|
        user = role.user + "@" if role.user
        hostname = role.hostname
        linked_files(shared_path).each do |file|
          run_locally do
            execute :rsync, "config/#{file.to_s.gsub(/.*\/(.*)$/,"\1")}", "#{user}#{hostname}:#{file.to_s.gsub(/(.*)\/[^\/]*$/, "\1")}/"
          end
        end
      end
    end
  end

end
before "deploy:check:linked_files", "deploy:copy_config"

Answer 3

您可以使用 rake 任务上传文件。

在设置 Capistrano 后将 gem 添加到您的 Gemfile，最好在 :development 组中：

group :development do
  gem 'capistrano',      require: false
  gem 'capistrano-rake', require: false
end

А将其添加到您的 Capfile:

require 'capistrano/rake'

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

创建文件 lib/capistrano/tasks/setup.rake 并向其中添加：

namespace :deploy do
  namespace :check do
    before :linked_files, :set_database_yml do
      on roles(:app), in: :sequence, wait: 10 do
        upload! 'config/database.yml', "#{shared_path}/config/database.yml"
      end
    end
  end
end

Capistrano：my.server.ipadress 上不存在链接文件 database.yml

Capistrano: linked file database.yml does not exist on my.server.ipadress

ruby-on-rails

deployment

ssh

capistrano