我正在为我的 rails 应用程序编写 cap/deploy 脚本。在我的服务器上，我使用 RVM 来管理我的 ruby 安装。
我看到的问题是，即使我已将 runner/user/group 设置为正确的用户，我在尝试安装 gems 时却遇到权限错误。
这是我看到的错误：
** loading stage recipe 'deploy'
** loading stage recipe 'init_config'
** loading stage recipe 'nginx'
executing locally: "git ls-remote ############################### ec2"
command finished in 1113ms
* executing `deploy:setup'
triggering before callbacks for `deploy:setup'
* executing `init_config'
* executing "whoami"
servers: ["ec2-23-23-24-42.compute-1.amazonaws.com"]
[ec2-23-23-24-42.compute-1.amazonaws.com] executing command
** [out :: ec2-23-23-24-42.compute-1.amazonaws.com] ubuntu
command finished in 529ms
* executing "gem install bundler"
servers: ["ec2-23-23-24-42.compute-1.amazonaws.com"]
[ec2-23-23-24-42.compute-1.amazonaws.com] executing command
** [out :: ec2-23-23-24-42.compute-1.amazonaws.com] ERROR: While executing gem ... (Gem::FilePermissionError)
** [out :: ec2-23-23-24-42.compute-1.amazonaws.com] You don't have write permissions into the /home/ubuntu/.rvm/gems/ruby-1.9.2-p290 directory.
command finished in 1026ms
*** failed: "bash --login -c 'gem install bundler'" on ec2-23-23-24-42.compute-1.amazonaws.com
这是我的出口上限文件：
load 'deploy'
# ================================================================
# ROLES
# ================================================================
role :app, "ec2-23-23-24-42.compute-1.amazonaws.com"
# ================================================================
# VARIABLES
# ================================================================
# Webistrano defaults
set :webistrano_project, "sweet_high"
set :webistrano_stage, "staging"
set :application, ""
set :branch, "ec2"
set :bundle_disable_shared_gems, "\"1\""
set :bundle_path, "vendor/bundler_gems"
set :default_shell, "bash --login"
set :deploy_to, "/data/\#{application}"
set :deploy_via, :remote_cache
set :domain, ""
set :environment, "staging"
set :group, "ubuntu"
set :nginx_conf_path, "/etc/nginx/sites-enabled"
set :password, "deployment_user(SSH user) password"
set :rails_env, "staging"
set :repository, "t"
set :runner, "ubuntu"
set :rvm_bin_path, "/home/#{user}/.rvm/bin/rvm"
set :rvm_type, :user
set :scm, :git
set :scm_password, "your_SVN_password"
set :scm_username, "your_SVN_user"
set :ssh_options, {:forward_agent => true,:paranoid => false,:keys => ["/home/#{user}/.ssh/rails_app_server.pem"]}
set :use_sudo, true
set :user, "ubuntu"
# ================================================================
# TEMPLATE TASKS
# ================================================================
# allocate a pty by default as some systems have problems without
default_run_options[:pty] = true
# set Net::SSH ssh options through normal variables
# at the moment only one SSH key is supported as arrays are not
# parsed correctly by Webistrano::Deployer.type_cast (they end up as strings)
[:ssh_port, :ssh_keys].each do |ssh_opt|
if exists? ssh_opt
logger.important("SSH options: setting #{ssh_opt} to: #{fetch(ssh_opt)}")
ssh_options[ssh_opt.to_s.gsub(/ssh_/, '').to_sym] = fetch(ssh_opt)
end
end
# ================================================================
# CUSTOM RECIPES
# ================================================================
before "deploy:setup", :init_config
after "deploy:setup", :setup_cleanup
namespace :init_config do
desc <<-DESC
Created directory structure, changes ownership, etc...
DESC
task :default do
run "gem install bundler"
run "sudo mkdir -p #{deploy_to}"
run "sudo chown -R #{user}:#{group} #{deploy_to}"
run "mkdir -p #{shared_path}/config"
run "mkdir -p #{shared_path}/config"
File.open("/home/#{user}/.ssh/id_rsa", "rb").each_line{ |line|
run "echo #{line} >> ~/.ssh/id_rsa"
}
run "chown #{user}:#{group} ~/.ssh/id_rsa"
run "chmod 600 ~/.ssh/id_rsa"
end
end