Ruby on rails 如何从顶部部署Rails 2.3.2应用程序和Capistrano（用于FastCGI）？

免责声明：我是Rails和Capistrano（不过是一名中级.NETC#开发人员）试图了解更多信息的新手

我经历了最艰难的一段时间来建立Capistrano开发流程。以下是我迄今为止为deploy.rb所做的工作：

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不起作用。我该如何解决这个问题

在部署应用程序时，是否有办法将environment.rb中的RAILS_ENV变量设置为“production”（“set:RAILS_ENV，：production”不起作用）

还有，这两个文件还有什么遗漏吗

更新了我的答案，请参见#3

我不使用FastCGI进行部署，但我想到了几件事：

流程脚本已经从Rails核心转移到了，您可以从GitHub获取

查看我的deploy.rb文件，您可能需要通过命令行将RAILS_ENV环境变量传递到脚本中，类似于：

run#{current_path}/script/process/reaperrails_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-尽管从外观上看，这并不是完全不赞成的。我想这取决于你/你的团队

希望这为您指明了正确的方向。

更新了我的答案，请参见#3

我不使用FastCGI进行部署，但我想到了几件事：

流程脚本已经从Rails核心转移到了，您可以从GitHub获取

查看我的deploy.rb文件，您可能需要通过命令行将RAILS_ENV环境变量传递到脚本中，类似于：

run#{current_path}/script/process/reaperrails_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-尽管从外观上看，这并不是完全不赞成的。我想这取决于你/你的团队

---

希望这为您指明了正确的方向。

这是我的deploy.rb，它已经很久没有更新了。我运行两个sed命令来设置：after_update_代码任务中的环境。我肯定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

---

那会两次问我密码。一次用于从SVN导出，一次作为提示在共享路径中自动生成my database.yml。

这是my deploy.rb，它已经很久没有更新了。我运行两个sed命令来设置：after_update_代码任务中的环境。我肯定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

---

那会两次问我密码。一次用于从SVN导出，一次作为提示在共享路径中自动生成my database.yml。

@Rufo:thx获取提示！我现在正在使用FastCGI，因为使用mongrel实例需要额外支付内存。我现在只是想熟悉一下rails应用程序。如果我做得更多，我将开始使用mongrel 1）我实际上已经尝试使用irs_process_scripts插件，但无法使其工作2）我应该将其传递给哪个脚本？3） 那么Capfile本质上只是为了加载deploy.rb吗？我现在就去查看链接。@Rufo:thx获取提示！我现在正在使用FastCGI，因为使用mongrel实例需要额外支付内存。我现在只是想熟悉一下rails应用程序。如果我做得更多，我将开始使用mongrel 1）我实际上已经尝试使用irs_process_scripts插件，但无法使其工作2）我应该将其传递给哪个脚本？3） 那么Capfile本质上只是为了加载deploy.rb吗？我现在将查看链接。您的示例代码帮助我了解了如何使用Capistrano。我很难找到关于如何正确设置标准deploy.rb&Capfile的官方文档，其中包含各种场景下的变量和任务。很高兴它有所帮助。当我写这篇文章时，文档的缺乏更加明显，它是由我在网上找到的零碎信息拼凑而成的。我也在做同样的事情。我将很快发布我的最终版本作为问题的更新。您的示例代码帮助我了解了如何使用Capistrano。我很难找到关于如何正确设置标准deploy.rb&Capfile的官方文档，其中包含各种场景下的变量和任务。很高兴它有所帮助。当我写这篇文章时，文档的缺乏更加明显，它是由我在网上找到的零碎信息拼凑而成的。我也在做同样的事情。我将很快发布我的最终版本作为问题的更新。