在将 Railscasts 335 部署到 vps 之后，我在 Rackspace 上的 Ubuntu 12.04 服务器上成功安装了 Rails (3.2.10) 应用程序。Nginx、独角兽、rbenv 和 Capistrano。
然后，当我尝试安装第二个 rails 网站时，我在 cap:deploy 期间收到错误“在任何源中都找不到 rake-10.0.3”。cap:setup 和 cap:check 成功。此外，我的应用程序文件夹下没有当前目录。
如果我 cd 进入发布目录并运行 bundle install 它使用的是 rake-10.0.3。这两个应用程序之间的唯一区别是我尝试安装的新应用程序使用资产管道。
这是我的部署文件，这两个应用程序都相同，除了 set :application 指令。
set :user, 'mark'
set :scm_passphrase, 'xxxx'
set :domain, '99.99.99.99'
set :application, "my_app"
set :repository, "#{user}@#{domain}:git/#{application}.git"
ssh_options[:forward_agent] = true
set :deploy_to, "/var/www/#{application}"
role :app, domain
role :web, domain
role :db, domain, :primary => true
default_run_options[:pty] = true
set :deploy_via, :remote_cache
set :scm, 'git'
set :branch, 'master'
set :scm_verbose, true
set :use_sudo, false
after "deploy", "deploy:cleanup" # keep only the last 5 releases
namespace :deploy do
%w[start stop restart].each do |command|
desc "#{command} unicorn server"
task command, roles: :app, except: {no_release: true} do
run "/etc/init.d/unicorn_#{application} #{command}"
end
end
task :setup_config, roles: :app do
sudo "ln -nfs #{current_path}/config/nginx.conf /etc/nginx/sites-enabled/#{application}"
sudo "ln -nfs #{current_path}/config/unicorn_init.sh /etc/init.d/unicorn_#{application}"
run "mkdir -p #{shared_path}/config"
put File.read("config/database.yml"), "#{shared_path}/config/database.yml"
puts "Now edit the config files in #{shared_path}."
end
after "deploy:setup", "deploy:setup_config"
task :symlink_config, roles: :app do
run "ln -nfs #{shared_path}/config/database.yml #{release_path}/config/database.yml"
end
after "deploy:finalize_update", "deploy:symlink_config"
desc "Make sure local git is in sync with remote."
task :check_revision, roles: :web do
unless `git rev-parse HEAD` == `git rev-parse origin/master`
puts "WARNING: HEAD is not the same as origin/master"
puts "Run `git push` to sync changes."
exit
end
end
before "deploy", "deploy:check_revision"
end