我正在尝试在Rails应用程序中首次启动Capistrano。我有一个运行Ubuntu 12.04、nginx、unicorn和rails的Linux服务器,但是似乎遇到了一些问题。我也使用Capistrano 3.0.0、rails 3.2.14、bundler 1.4.0和ruby 1.9.3p448使用RVM。
目前我只设置了生产阶段,并且我只关心Capistrano与我的服务器通信并从github推送我的代码(暂时不涉及迁移和绑定等操作)。
当我尝试使用以下设置执行cap production deploy:check
或cap production deploy:setup
命令时(貌似已过期?),会收到以下错误消息:
我不确定如何解决这个错误,并且Google没有给出太多建议。我尝试添加了rvm-capistrano
宝石,但无济于事。应该如何修改代码以解决此错误?
cap aborted!
undefined method `instance' for Capistrano::Configuration:Class
/Users/andrew/.rvm/gems/ruby-1.9.3-p448/gems/bundler-1.4.0.rc.1/lib/bundler/capistrano.rb:11:in `<top (required)>'
config/deploy.rb:1:in `<top (required)>'
/Users/andrew/.rvm/gems/ruby-1.9.3-p448/gems/capistrano-3.0.0/lib/capistrano/setup.rb:12:in `load'
/Users/andrew/.rvm/gems/ruby-1.9.3-p448/gems/capistrano-3.0.0/lib/capistrano/setup.rb:12:in `block (2 levels) in <top (required)>'
/Users/andrew/.rvm/gems/ruby-1.9.3-p448/gems/capistrano-3.0.0/lib/capistrano/application.rb:12:in `run'
/Users/andrew/.rvm/gems/ruby-1.9.3-p448/gems/capistrano-3.0.0/bin/cap:3:in `<top (required)>'
/Users/andrew/.rvm/gems/ruby-1.9.3-p448/bin/cap:23:in `load'
/Users/andrew/.rvm/gems/ruby-1.9.3-p448/bin/cap:23:in `<main>'
Tasks: TOP => production
(See full trace by running task with --trace)
deploy.rb
require "bundler/capistrano"
set :stages, %w(staging production)
set :default_stage, "production"
set :application, "my_app"
set :user, "andrew"
set :scm, "git"
set :repository, "https://github.com/my_repo/#{application}"
set :branch, "master"
set :deploy_to, "/home/rails/#{application}"
set :deploy_via, :remote_cache
set :use_sudo, false
default_run_options[:pty] = true
ssh_options[:forward_agent] = true
after "deploy", "deploy:cleanup" # keep only the last 5 releases
namespace :deploy do
task :restart, roles: :app do
run "touch #{current_path}tmp/restart.txt"
end
end
after :finishing, 'deploy:cleanup'
deploy/production.rb
#Real IP ommitted
server "10.2.32.68", :web, :app, :db, primary: true
Capfile
# Load DSL and Setup Up Stages
require 'capistrano/setup'
# Includes default deployment tasks
require 'capistrano/deploy'
# require 'capistrano/rvm'
# require 'capistrano/rbenv'
# require 'capistrano/chruby'
# require 'capistrano/bundler'
# require 'capistrano/rails/assets'
# require 'capistrano/rails/migrations'
# Loads custom tasks from `lib/capistrano/tasks' if you have any defined.
Dir.glob('lib/capistrano/tasks/*.cap').each { |r| import r }
编辑:查看在bundler中capistrano.rb的有争议的那一行后,它提到要在deploy.rb中添加require 'bundler/deployment',这似乎已经解决了capistrano实例错误问题。
注意:降级到capistrano 2.15.5,这消除了错误。