Bagaimana saya bisa menghindari kesalahan yang ditolak izin ketika mencoba untuk menyebarkan aplikasi rel dengan capistrano?

Total noob di sini. Saya mencoba untuk menyebarkan aplikasi melalui Capistrano. Saya mendapatkan izin ditolak kesalahan tanpa henti ketika saya mencoba menjalankan cap deploy: update. Tampaknya setidaknya beberapa kesalahan ini disebabkan oleh direktori yang hilang yang memicu kesalahan "Izin Ditolak". (Saya sedang melakukan setup pada root untuk sementara waktu.)

set :user, 'root'
set :domain, 'domainname.com'
set :application, 'appname'
# adjust if you are using RVM, remove if you are not
$:.unshift(File.expand_path('./lib', ENV['rvm_path']))
require "rvm/capistrano"
set :rvm_ruby_string, '1.9.2'
# file paths
set :repository, "ssh://root@domain.com/~/git/appname.git"
set :deploy_to, "/var/rails/appname"
# distribute your applications across servers (the instructions below put them
# all on the same server, defined above as 'domain', adjust as necessary)
role :app, domain 
role :web, domain
role :db, domain, :primary => true
set :deploy_via, :remote_cache
set :scm, 'git'
set :branch, 'master'
set :scm_verbose, true
set :use_sudo, false
set :rails_env, :production
namespace :deploy do
desc "cause Passenger to initiate a restart"
task :restart do
run "touch #{current_path}/tmp/restart.txt"
end
desc "reload the database with seed data"
task :seed do
run "cd #{current_path}; rake db:seed RAILS_ENV=#{rails_env}"
end
end
after "deploy:update_code", :bundle_install
desc "install the necessary prerequisites"
task :bundle_install, :roles => :app do
run "cd #{release_path} && bundle install"
end

Inilah hasil saya:

** [domainname.com :: out] Cloning into '/var/rails/appname/shared/cached-copy'...
** [domainname.com :: err] Permission denied, please try again.
** [domainname.com :: err] Permission denied, please try again.
** [domainname.com :: err] Permission denied (publickey,gssapi-with-mic,password).
** [domainname.com :: err] fatal: The remote end hung up unexpectedly

Saya dapat ssh tanpa kata sandi, jadi tidak yakin tentang kesalahan publickey itu.

Omong-omong, jika saya lari cap deploy:updatetanpanya set :deploy_via, :remote_cache, inilah hasil saya:

 ** [domainname.com :: out] Cloning into '/var/rails/appname/releases/20120326204237'...
 ** [domainname.com :: err] Permission denied, please try again.
 ** [domainname.com :: err] Permission denied, please try again.
 ** [domainname.com :: err] Permission denied (publickey,gssapi-with-mic,password).
 ** [domainname.com :: err] fatal: The remote end hung up unexpectedly
command finished

Terima kasih banyak atas bantuan Anda dengan ini.

UPDATE Menambahkan ssh_options[:forward_agent] = trueke deploy.rb tampaknya agak memperbaiki keadaan.

Anda dapat menambahkan

set :admin_runner, "my_apps_username"

di config / deploy.rb. Sebagai alternatif, Anda dapat mengganti penyebaran: pengaturan tugas seperti ini:

namespace :deploy do
  task :setup, :except => { :no_release => true } do
    dirs = [deploy_to, releases_path, shared_path]
    dirs += shared_children.map { |d| File.join(shared_path, d.split('/').last) }
    run "mkdir -p #{dirs.join(' ')}"
    run "chmod g+w #{dirs.join(' ')}" if fetch(:group_writable, true)
  end
end