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如何部署Rails 2.3.2应用程序,从顶部使用Capistrano(对于FastCGI)?

fastcgi capistrano deployment ruby-on-rails

gabe · 技术社区 · 16 年前

免责声明:我是Rails和Capistrano的一个Noob(但是是一个中级的.NET C开发人员),正在努力了解更多信息。

我一直是最艰难的时间得到一个Capistrano开发过程的建立。以下是目前为止我的deploy.rb:


set :application, "MyAppName"
set :domain, "domainname"
set :user, "userid" 
set :repository,  "svn+ssh://#{user}@#{domain}/home/#{user}/svn/#{application}/trunk"
set :rails_env, :production
set :chmod755, %w(app config db lib public vendor script tmp public/dispatch.cgi public/dispatch.fcgi public/dispatch.rb)
set :deploy_to, "/home/#{user}/apps/#{application}"
set :use_sudo, false
set :deploy_via, :checkout
set :group_writable, false
default_run_options[:pty] = true
role :app, domain
role :web, domain
role :db,  domain, :primary => true

这是我的档案:


load 'deploy' if respond_to?(:namespace) # cap2 differentiator
Dir['vendor/plugins/*/recipes/*.rb'].each { |plugin| load(plugin) }
load 'config/deploy'

namespace :deploy do

  task :restart, :roles => :app do
    run "#{current_path}/script/process/reaper --dispatcher=dispatch.fcgi"
  end

  desc "Set the proper permissions for directories and files on HostingRails accounts"
  task :after_deploy do
    run(chmod755.collect do |item|
      "chmod 755 #{current_path}/#{item}"
    end.join(" && "))
  end

end

Rails 2.3.2没有脚本/进程目录,因此重新启动任务根本无法工作。我该怎么解决这个问题?
部署应用程序时,是否有方法将environment.rb中的rails_env变量设置为“production”(“set:rails_env,:production”不是这样做的)?
另外,这两个文件中还有什么遗漏吗?

2 回复 | 直到 16 年前

Chris Doggett 16 年前

这是我的deploy.rb,很久没有更新过了。我运行了两个SED命令来设置我的:更新后代码任务中的环境。我确信有一种更简单的方法,但这是我目前的方法。

require 'erb'

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

def prompt_with_default(var, default)
  set(var) do
    Capistrano::CLI.ui.ask "Enter #{var} [#{default}] : "
  end

  set var, default if eval("#{var.to_s}.empty?")
end

default_run_options[:pty] = true 

set :rake, "/usr/local/bin/rake"

set :user, "your username"
set :application, "application name"
set :repository,  "svn repository path"
set :host, "domain name"
set :db_host, "DB host name"
set :db_user, "DB user name"
set :db_prefix, "any DB name prefix your host might require"
set :rails_env, "production"

set :deploy_to, "/home/username/rails/#{host}" # your deployment directory

role :app, host
role :web, host
role :db,  host, :primary => true

set :use_sudo, false
set :checkout, "export"

#
# TASKS
#
desc "Tasks to execute after code update"
task :after_update_code, :roles => [:app, :db, :web] do
  # Make sure we're running in production
  run "sed -i -e '/ENV.*RAILS_ENV/s/# //' #{release_path}/config/environment.rb"
  run "sed -i -e '/ENV.*RAILS_ENV/s/production/#{rails_env}/' #{release_path}/config/environment.rb"

  # Add banned IPs
  deny_lines = []
  File.readlines("#{release_path}/config/banned_ips").each {|ip|
    deny_lines << "deny from #{ip}"
  }

  ip_ban_block = <<EOBAN
# Bannination
order allow,deny
#{deny_lines.join}
allow from all
EOBAN

  run "sed -i -e 's/# BANNED IPS/#{ip_ban_block}/' #{release_path}/public/.htaccess"

  run "chmod +x #{release_path}/script/runner" 
  run "chmod +x #{release_path}/script/process/reaper" 
  run "chmod +x #{release_path}/script/process/spawner" 
  run "chmod 755 #{release_path}/public/dispatch.*" 
end

desc "Restarting after deployment"
task :after_deploy, :roles => [:app, :db, :web] do
  run "cd #{current_path} && rake RAILS_ENV=production db:sessions:clear tmp:clear"
  # fix permissions
  run "dos2unix #{release_path}/public/dispatch.*"
  run "dos2unix #{release_path}/public/.htaccess"
  run "chmod -R 755 #{release_path}"
  run "chmod -R 775 #{release_path}/log #{release_path}/tmp #{release_path}/script"
  run "find #{release_path}/ | xargs touch"
  run "touch #{deploy_to}/current/public/dispatch.fcgi"
end

desc "Restarting after rollback"
task :after_rollback, :roles => [:app, :db, :web] do
  run "touch #{deploy_to}/current/public/dispatch.fcgi"
end

namespace :db do
  desc "Create database yaml in shared path" 
  task :default do
  prompt_with_default(:db_password, "")
  db_config = ERB.new <<-EOF
base: &base
  adapter: mysql
  port: 3306
  host: #{db_host}
  username: #{db_user}
  password: #{db_password}

development:
  database: #{db_prefix}#{application}development
  <<: *base

test:
  database: #{db_prefix}#{application}test
  <<: *base

production:
  database: #{db_prefix}#{application}production
  <<: *base
EOF

    run "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

一旦我设置了变量,我就有了一个运行的bash脚本:

svn export $svn_path . --force
cap deploy

这会要求我输入两次密码。一次用于从SVN导出,另一次用于提示在共享路径中自动生成database.yml。

Rufo Sanchez 16 年前

更新了我的答案,见3…

我不使用fastcgi进行部署,但我想到了一些事情:

过程脚本已从Rails核心移出并移入 a plugin ,您可以从Github获取。
查看my deploy.rb文件,您可能需要通过命令行将rails环境变量传递到脚本中,类似于:

run #{current_path}/script/process/reaper RAILS_ENV=#{rails_env} --dispatcher=dispatch.fcgi
编辑:事实上,将任务放在capfile中而不是deploy.rb中有点奇怪-尽管查看 this thread on the Capistrano Google Group 不完全是皱眉。我想这取决于你/你的团队。

希望这能为你指明正确的方向。