ruby-on-rails-3 - 使用 capistrano 部署错误失败 : "sh -c ' cat/home. .......current/REVISION

Question

我在通过 capistrano 将应用程序部署到 VPS 时遇到错误。cap deploy:setup 和 cap deploy:check 执行无误!

当我尝试限制部署:冷或只是限制部署时，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

Answer 1

我自己找答案

首先从 deploy.rb 中删除这段代码

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

然后从 capfile 中删除 load 'deploy/assets'，然后运行

cap deploy:cold

这将在没有错误的情况下工作，但仅限于初始部署。然后像往常一样在服务器上“sudo service nginx restart”，并添加回所有删除器早期的片段。

最后你可能会出错:

ActionView::Template::Error (File to import not found or unreadable: bootstrap.
Load path: /home/yasinishyn/apps/mkv/releases/20130506160725
(in /home/yasinishyn/apps/mkv/releases/20130506160725/app/assets/stylesheets/bootstrap_and_overrides.css.scss)):

如果不这样做，请更改 Assets 中的某些内容，例如在 application.css 的顶部添加空间。然后 git add ., git commit .... , git push，然后重新运行

cap deploy

还有砰!!它有效:)