通过 capistrano 将应用程序部署到 VPS 时出现错误。cap deploy:setup 和 cap deploy:check 执行没有错误！
当我尝试限制 deploy:cold 或简单地限制部署时，我得到了这个
[deploy:update_code] rolling back
* executing [#<Capistrano::Command::Tree::ElseBranch:0x0000010141e798 @condition="else", @command="rm -rf /home/yasinishyn/apps/mkv/releases/20130505214957; true", @callback=#<Proc:0x0000010140f6a8@/usr/local/rvm/gems/ruby-2.0.0-p0/gems/capistrano-2.15.3/lib/capistrano/configuration/actions/invocation.rb:13>, @options={}, @skip=false>]
servers: ["xxx.xxx.xxx.xxx"]
[xxx.xxx.xxx.xxx] executing command
command finished in 225ms
failed: "sh -c 'cat /home/yasinishyn/apps/mkv/current/REVISION'" on xxx.xxx.xxx.xxx
如何调试这个？哪里出错了？这是什么意思“失败：198.211.125.183 上的“sh -c 'cat /home/yasinishyn/apps/mkv/current/REVISION'”？
部署.rb：
require "bundler/capistrano"
server "xxx.xxx.xxx.xxx", :web, :app, :db, primary: true
set :application, "app"
set :user, "user"
set :deploy_to, "/home/#{user}/apps/#{application}"
set :deploy_via, :remote_cache
set :use_sudo, false
set :shared_children, shared_children + %w{public/uploads}
set :scm, "git"
set :repository, "git@github.com:git_user/#{application}.git"
set :branch, "master"
default_run_options[:pty] = true
ssh_options[:forward_agent] = true
after "deploy", "deploy:cleanup" # keep only the last 5 releases
namespace :deploy do
namespace :assets do
task :precompile, :roles => :web do
from = source.next_revision(current_revision)
if capture("cd #{latest_release} && #{source.local.log(from)} vendor/assets/ lib/assets/ app/assets/ | wc -l").to_i > 0
run_locally("rake assets:clean && rake assets:precompile")
run_locally "cd public && tar -jcf assets.tar.bz2 assets"
top.upload "public/assets.tar.bz2", "#{shared_path}", :via => :scp
run "cd #{shared_path} && tar -jxf assets.tar.bz2 && rm assets.tar.bz2"
run_locally "rm public/assets.tar.bz2"
run_locally("rake assets:clean")
else
logger.info "Skipping asset precompilation because there were no asset changes"
end
end
task :symlink, roles: :web do
run ("rm -rf #{latest_release}/public/assets &&
mkdir -p #{latest_release}/public &&
mkdir -p #{shared_path}/assets &&
ln -s #{shared_path}/assets #{latest_release}/public/assets")
end
end
%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.example.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"
#rake seed task
desc "Seed the database on already deployed code"
task :seed, :only => {:primary => true}, :except => { :no_release => true } do
run "cd #{current_path}; RAILS_ENV=#{rails_env} bundle exec rake db:seed"
end
desc "Seed the database on already deployed code"
task :drop, :only => {:primary => true}, :except => { :no_release => true } do
run "cd #{current_path}; RAILS_ENV=#{rails_env} bundle exec rake db:drop:all"
run "cd #{current_path}; RAILS_ENV=#{rails_env} bundle exec rake db:create:all"
run "cd #{current_path}; RAILS_ENV=#{rails_env} bundle exec rake db:migrate"
end
end