capistrano与database.yml部署错误

Question

我想部署使用capistrano但是我不断收到此database.yml未找到错误。我的database.yml文件没有被提交到我的仓库，我试图设置我的deploy.rb文件来动态创建database.yml，但它似乎没有工作。这里是我的deploy.rb文件：

require "bundler/capistrano" 

set :application, "myapp.com" 
set :app_name, "myapp" 
set :repository, "git@bitbucket.org:myrepo/fltctr.git" 
set :scm, :git 

server "100.100.100.100", :web, :app, :db, primary: true 

    set :user, "user" # As defined on your server 
    set :password, "pwwd" 
    set :deploy_to, "/var/www/html/myapp.com" # Directory in which the deployment will take place 
    set :mysql_user, 'root_user' 
    set :mysql_password, 'root_pwwd' 

set :deploy_via, :remote_cache 
set :use_sudo, false 
ssh_options[:forward_agent] = true 

namespace :deploy do 
    task :start do ; end 
    task :stop do ; end 
    task :restart, :roles => :app, :except => { :no_release => true } do 
    run "#{try_sudo} touch #{File.join(current_path,'tmp','restart.txt')}" 
    end 
end 

namespace :deploy do 
    desc "Recreate symlink" 
    task :resymlink, :roles => :app do 
    run "#{try_sudo} rm -f #{current_path} && ln -s #{release_path} #{current_path}" 
    end 

end 


require 'erb' 

before "deploy:setup", :db 
after "deploy:update_code", "db:symlink" 

namespace :db do 
    desc "Create database yaml in shared path" 
    task :default do 
    db_config = ERB.new <<-EOF 
    base: &base 
     adapter: mysql 
     socket: /var/run/mysqld/mysql.sock 
     username: #{mysql_user} 
     password: #{mysql_password} 

    development: 
     database: #{app_name}_dev 
     <<: *base 

    test: 
     database: #{app_name}_test 
     <<: *base 

    production: 
     database: #{app_name}_prod 
     <<: *base 
    EOF 

    run "#{try_sudo} mkdir -p #{shared_path}/config" 
    put db_config.result, "#{shared_path}/config/database.yml" 
    end 

    desc "Make symlink for database yaml" 
    task :symlink do 
    run "ln -nfs #{shared_path}/config/database.yml #{release_path}/config/database.yml" 
    end 
end 


after "deploy:create_symlink", "deploy:resymlink", "deploy:update_crontab" 

每次我跑帽部署我碰到下面的错误之后，部署停止并回滚。

*** [err :: ] rake aborted! 
*** [err :: ] No such file or directory - /var/www/html/myapp.com/releases/20130224112516/config/database.yml 
*** [err :: ] /var/www/html/myapp.com/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/application/configuration.rb:115:in `read' 

请帮助 - 我真的需要完成这件事。

Answer 1

你需要写一个文件不仅提出到stdout：

改变这一行：

放db_config.result， “＃{} shared_pa​​th /config/database.yml”

到

File.open（“＃{shared_pa​​th} /config/database.yml”，“w”）{| f | f.puts db_config.result}