我使用capistrano 3.0部署rails项目
ror + nginx + unicorn
部署非常糟糕。但服务器在独角兽重启期间死亡。
1~2秒死亡服务器..
我不知道我要做什么..
这是我的deploy.rb源..
# -*- encoding : utf-8 -*-
# config valid only for Capistrano 3.1
lock '3.1.0'
require 'unicorn'
#set :whenever_command, "bundle exec whenever"
#require "whenever/capistrano"
set :application, 'projectname'
# Default branch is :master
# ask :branch, proc { `git rev-parse --abbrev-ref HEAD`.chomp }
# Default deploy_to directory is /var/www/my_app
# set :deploy_to, '/var/www/my_app'
# Default value for :scm is :git
set :scm, :git
set :repo_url, 'git@github.com:gitURL'
# Default value for :format is :pretty
set :branch, 'master'
set :deploy_via, :remote_cache
# set :format, :pretty
# Default value for :log_level is :debug
# set :log_level, :debug
# Default value for :pty is false
# set :pty, true
# Default value for :linked_files is []
# set :linked_files, %w{config/database.yml}
# Default value for linked_dirs is []
# set :linked_dirs, %w{bin log tmp/pids tmp/cache tmp/sockets vendor/bundle public/system}
# Default value for default_env is {}
set :default_env, { path: "/root/.rbenv/versions/2.1.0/lib/ruby/gems:/root/.rbenv/versions/2.1.0/bin:$PATH" }
#set :current_deploy_path, "DEPLOY_PATH"
# Default value for keep_releases is 5
# set :keep_releases, 5
set :ssh_options, { :forward_agent => true}
set :user, "user"
set :password, "passwod"
namespace :whenever do
task :start do
on roles(:app) do
execute("cd #{fetch :current_deploy_path}")
within release_path do
with rails_env: fetch(:rails_env) do
execute :bundle, 'exec whenever --update-crontab'
end
end
end
end
end
namespace :deploy do
desc 'Restart application'
task :restart do
on roles(:app), in: :sequence, wait: 5 do
# Your restart mechanism here, for example:
# execute :touch, release_path.join('tmp/restart.txt')
end
end
after :publishing, :restart
after :restart, :clear_cache do
on roles(:web), in: :groups, limit: 3, wait: 10 do
# Here we can do anything such as:
# within release_path do
# execute :rake, 'cache:clear'
# end
end
end
before 'deploy:assets:precompile', :link_assets
task :link_assets do
on roles(:app), :roles => :app, :except => { :no_release => true } do
execute("ln -fs #{shared_path}/database.yml #{release_path}/config/database.yml")
end
end
#before 'deploy:publishing', :kill_unicorns
task :kill_unicorns do
on roles(:app), in: :sequence, wait: 3 do
execute("if [ -f #{fetch :current_deploy_path}/tmp/pids/unicorn.pid ]; then kill -s QUIT `cat #{fetch :current_deploy_path}/tmp/pids/unicorn.pid`; fi")
end
end
task :make_unicorn do
on roles(:app), in: :sequence, wait: 3 do
execute :mkdir, '-p', "#{fetch :current_deploy_path}/tmp/pids"
execute("cd #{fetch :current_deploy_path}")
execute("if [ -f #{shared_path}/unicorn.pid ]; then kill -s QUIT `cat #{shared_path}/unicorn.pid`; fi")
within release_path do
with rails_env: fetch(:rails_env) do
execute :bundle, 'exec unicorn -D -c config/unicorn.rb -E production'
end
end
execute("cp #{fetch :current_deploy_path}/tmp/pids/unicorn.pid #{shared_path}/unicorn.pid")
end
end
# desc "Update the crontab file"
# task :update_crontab do #, :roles => :db do
# on roles(:app), in: :sequence, wait: 3 do
# execute("cd #{release_path} && bundle exec whenever --update-crontab #{application}")
# end
# end
# after 'deploy:publishing', :kill_unicorns
after 'deploy:publishing', :make_unicorn
after 'deploy:finishing', 'whenever:start'
end
这是我的deploy / production.rb
set :domain, "14.63.165.216"
set :rails_env, "production"
set :current_deploy_path, "/geuinea_pig/priday/current"
# Extended Server Syntax
# ======================
# This can be used to drop a more detailed server
# definition into the server list. The second argument
# something that quacks like a hash can be used to set
# extended properties on the server.
server '14.63.165.216', user: 'root', roles: %w{web app db}, primary: true#, my_property: :my_value
set :deploy_to, '/geuinea_pig/priday'
set :ssh_options, {
user: 'root', # overrides user setting above
# keys: %w(/home/user_name/.ssh/id_rsa),
forward_agent: false,
#auth_methods: %w(publickey password),
auth_methods: %w(password),
password: 'dPffhdPffh1!'
}
这是在capistrano日志中部署日志
INFO [193203be] Running /usr/bin/env if [ -f /path/shared/unicorn.pid ]; then kill -s QUIT `cat /path/shared/unicorn.pid`; fi on 14.63.165.216
DEBUG [193203be] Command: if [ -f /path/shared/unicorn.pid ]; then kill -s QUIT `cat /path/shared/unicorn.pid`; fi
#---------------------------------
#THIS TIME DIED SERVER 2~3 second
#---------------------------------
INFO [193203be] Finished in 0.227 seconds with exit status 0 (successful).
DEBUG [05a0c865] Running /usr/bin/env if test ! -d /path/releases/20140706164800; then echo "Directory does not exist '/path/releases/20140706164800'" 1>&2; false; fi on 14.63.165.216
DEBUG [05a0c865] Command: if test ! -d /path/releases/20140706164800; then echo "Directory does not exist '/path/releases/20140706164800'" 1>&2; false; fi
DEBUG [05a0c865] Finished in 0.229 seconds with exit status 0 (successful).
INFO [3cf3c052] Running /usr/bin/env bundle exec unicorn -D -c config/unicorn.rb -E production on 14.63.165.216
DEBUG [3cf3c052] Command: cd /path/releases/20140706164800 && ( PATH=/root/.rbenv/versions/2.1.0/lib/ruby/gems:/root/.rbenv/versions/2.1.0/bin:$PATH RAILS_ENV=production /usr/bin/env bundle exec unicorn -D -c config/unicorn.rb -E production )
INFO [3cf3c052] Finished in 1.061 seconds with exit status 0 (successful).
INFO [07718210] Running /usr/bin/env cp /path/current/tmp/pids/unicorn.pid /path/shared/unicorn.pid on 14.63.165.216
DEBUG [07718210] Command: cp /path/current/tmp/pids/unicorn.pid /path/shared/unicorn.pid
INFO [07718210] Finished in 0.197 seconds with exit status 0 (successful).
答案 0 :(得分：0)
如果你不熟悉Capistrano，我会建议你开始慢一点？我发现它具有挑战性。事实上，我认为你超越了我。有很多小问题可能出错，日志/输出可能有点压倒性，我尝试了一些更简单的上限任务。我在我的部署用户的主目录下创建了一个奇怪的目录，然后运行它：
task :dir_exists do
ask(:dir_to_test, "$home")
on roles(:all) do |host|
if test("[ -d #{fetch(:dir_to_test)} ]")
info "Phew, it's ok, the directory exists!"
else
info "Directory #{fetch(:dir_to_test)} does not exist"
end
end
end
如果运行，至少我知道我正在与服务器通信并且可以运行。我起初遇到的大问题主要与身份验证有关。我没有得到整个ssh-add的东西。即使是昨天我也不得不在我的数据库上运行一些新的命令，我花了大约两个小时来弄清楚我的语法是完整的废话。
无论如何，你可以更具体地了解出了什么问题，提供的帮助就越多。顺便问一下，你真的有一个名为＆＃34; / geuinea_pig / friday / current＆＃34;的顶级目录吗？如果所有这些都是capistrano，可能会保存这些文件并开始更简单？我这样说是因为我的部署更简单，也许你不需要这一切？此外，在本地计算机上没有反击执行（你有反引号cat /path/shared/unicorn.pid反引号）？
无论如何，祝你好运！