我正在尝试运行cap deploy:cold来安装一个rails应用程序与postgresql，我不明白什么是"生产数据库未配置"或其他任何东西。
* 2013-01-03 08:23:26 executing `deploy:assets:precompile'
* executing "cd /home/deployer/apps/opedio/releases/20130103132324 && bundle exec rake RAILS_ENV=production RAILS_GROUPS=assets assets:precompile"
** [out :: 192.155.89.30] rake aborted!
** [out :: 192.155.89.30] production database is not configured
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/activerecord-3.2.9/lib/active_record/connection_adapters/abstract/connection_specification.rb:39:in `resolve_string_connection'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/activerecord-3.2.9/lib/active_record/connection_adapters/abstract/connection_specification.rb:25:in `spec'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/activerecord-3.2.9/lib/active_record/connection_adapters/abstract/connection_specification.rb:130:in `establish_connection'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/activerecord-3.2.9/lib/active_record/railtie.rb:82:in `block (2 levels) in <class:Railtie>'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.9/lib/active_support/lazy_load_hooks.rb:36:in `instance_eval'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.9/lib/active_support/lazy_load_hooks.rb:36:in `execute_hook'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.9/lib/active_support/lazy_load_hooks.rb:26:in `block in on_load'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.9/lib/active_support/lazy_load_hooks.rb:25:in `each'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.9/lib/active_support/lazy_load_hooks.rb:25:in `on_load'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/activerecord-3.2.9/lib/active_record/railtie.rb:74:in `block in <class:Railtie>'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/initializable.rb:30:in `instance_exec'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/initializable.rb:30:in `run'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/initializable.rb:55:in `block in run_initializers'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/initializable.rb:54:in `each'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/initializable.rb:54:in `run_initializers'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/application.rb:136:in `initialize!'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/railtie/configurable.rb:30:in `method_missing'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/releases/20130103131459/config/environment.rb:4:in `<top (required)>'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.9/lib/active_support/dependencies.rb:251:in `require'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.9/lib/active_support/dependencies.rb:251:in `block in require'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.9/lib/active_support/dependencies.rb:236:in `load_dependency'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.9/lib/active_support/dependencies.rb:251:in `require'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/application.rb:103:in `require_environment!'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/application.rb:297:in `block (2 levels) in initialize_tasks'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/actionpack-3.2.9/lib/sprockets/assets.rake:93:in `block (2 levels) in <top (required)>'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/actionpack-3.2.9/lib/sprockets/assets.rake:60:in `block (3 levels) in <top (required)>'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/actionpack-3.2.9/lib/sprockets/assets.rake:23:in `invoke_or_reboot_rake_task'
** [out :: 192.155.89.30] /home/deployer/apps/opedio/shared/bundle/ruby/1.9.1/gems/actionpack-3.2.9/lib/sprockets/assets.rake:29:in `block (2 levels) in <top (required)>'
** [out :: 192.155.89.30] Tasks: TOP => environment
** [out :: 192.155.89.30] (See full trace by running task with --trace)
command finished in 5983ms
*** [deploy:update_code] rolling back
*执行"rm -rf/home/deploy/apps/opedio/releases/20130103131459;真正的"服务器("192.155.89.30"):[192.155.89.30]执行命令命令在319ms内完成sh -c 'cd/home/deploy/apps/opedio/releases/20130103131459 &&bundle exec rake RAILS_ENV=production RAILS_GROUPS=assets assets:precompile'" on 192.155.89.30
这个错误信息意味着你没有在database.yml中配置你的生产数据库。
查看远程服务器上的database.yml。
它看起来应该像这样:
production:
adapter: mysql2
encoding: utf8
reconnect: false
database: database_name
pool: 5
username: database_user
password: th3p4ssw0rd
socket: /path/to/mysql.sock
我建议这样做:
1)。不要将database.yml存储在版本控制之下。当使用git时，只需将/config/database.yml添加到.gitignore文件中(或创建该文件)并提交。
2)。在远程服务器的shared/config/中创建database.yml(通过脚本或手动)。
3)。在部署时将database.yml从应用程序符号链接到shared/config。
# /config/deploy.rb:
after 'deploy:finalize_update', 'db:symlink'
namespace :db do
desc "Symlinks the database.yml"
task :symlink, :except => { :no_release => true }, :roles => :app do
run "ln -nfs #{shared_path}/config/database.yml #{release_path}/config/database.yml"
end
end
您可以阅读一篇关于数据库的更全面的文章。这里的Yml管理:http://www.simonecarletti.com/blog/2009/06/capistrano-and-database-yml/