我正在使用 capistrano 3 和 Ruby on Rails 3.2.14 ， Ruby 2.1.0 。我写了一个配方来检查S3挂载状态，然后运行一组特定的操作：
(public/system)为空，请使用s3fs public/system移至s3存储桶，然后清空文件夹public/system并重新安装。rsync 显示文件已逐步发送，但我无法在存储桶中找到它们。这是我得到的输出：
05 rsync -av /home/deploy/unmounted /home/deploy/mounted
05 sending incremental file list
05 unmounted/
05 unmounted/ckeditor/
05 unmounted/ckeditor/pictures/
05 unmounted/ckeditor/pictures/16736/
05 unmounted/ckeditor/pictures/16736/bike.jpg
05 unmounted/ckeditor/pictures/16736/content_bike.jpg
05 unmounted/ckeditor/pictures/16736/thumb_bike.jpg
05
05 sent 750,943 bytes received 93 bytes 166,896.89 bytes/sec
05 total size is 750,396 speedup is 1.00
配方，我还没有优化它，因为我首先想检查它是否正常工作，
desc "Mounting S3"
task :mounting_s3 do
on main_server, in: :sequence, wait: 5 do |host|
as 'deploy' do
within "#{code_folder_path}/current" do
code_folder = "#{code_folder_path}/current"
path = "#{code_folder_path}/current/public/system"
unmount_path = "#{code_folder_path}/shared/public/system"
# check first if public/system exists
puts "** Checking if public/system folder exists on #{host}"
puts "** testing if it is there #{test("[ -d #{path} ]")}"
if test("[ -d #{path} ]")
puts "** public/system folder exists.."
puts "** Checking if S3 is mounted"
result = capture "cd #{code_folder} && mountpoint public/system" , raise_on_non_zero_exit: false
puts "result #{result}"
if result.match('is a mountpoint') != nil
puts "** S3 is mounted at #{path} on #{host}"
elsif result.match('is not a mountpoint') != nil
puts "** #{path} is not a mountpoint on #{host}"
result = capture "ls -A #{unmount_path}"
if result.length > 0
puts "** public/system is not empty"
if test("[ -d /home/deploy/mounted ]")
puts "** mounted folder exists"
puts "checking if folder is mounted"
result = capture "mountpoint /home/deploy/mounted" , raise_on_non_zero_exit: false
puts "result #{result}"
if result.match('is a mountpoint') != nil
puts "** mounted folder is mounted so unmounting it"
execute! "fusermount -u /home/deploy/mounted"
puts "** mounted folder is unmounted now"
puts "** Deleting mounted folder"
execute! "cd /home/deploy/ && sudo rm -r mounted"
puts "** mounted folder deleted"
elsif result.match('is not a mountpoint') != nil
puts "** Deleting mounted folder"
execute! "sudo rm -r /home/deploy/mounted"
puts "** mounted folder deleted"
end
end
if test("[ -d /home/deploy/unmounted ]")
puts "** deleting unmounted folder"
execute! "cd /home/deploy/ && sudo rm -r unmounted"
puts "** unmounted folder deleted"
end
puts "** mounting bucket"
execute! "cd /home/deploy/ && mkdir unmounted && mkdir mounted"
execute! "s3fs s3_bucket /home/deploy/mounted"
puts "** bucket mounted on /home/deploy/mounted folder"
puts "** copying files from public/system to unmounted"
execute! "cp -r #{unmount_path}/* /home/deploy/unmounted/."
puts "** files copied"
puts "** syncing unmounted files to s3"
execute! "rsync -av /home/deploy/unmounted /home/deploy/mounted"
puts "** Files synced"
puts "** unmounting mounted folder now for safety"
execute! "fusermount -u /home/deploy/mounted"
puts "** folder unmounted"
puts "** deleting unmounted folder now"
execute! "sudo rm -r /home/deploy/unmounted"
puts "** folders deleted\n"
puts "** emptying public/system"
execute! "sudo rm -r #{unmount_path}/../system/*"
puts "** folder is empty, mounting public/system"
execute! "s3fs s3-bucket #{path}"
puts "** s3 is mounted"
else
puts "** public/system is empty"
execute! "cd #{code_folder} && s3fs s3-bucket #{path}"
puts "** s3 is mounted"
end
end
else
puts "** public/system folder does not exists.."
puts "** Mounting S3"
execute! "cd #{code_folder} && s3fs s3-bucket #{path}"
end
end
end
运行cap staging deploy:mounting_s3 --trace后得到的输出：
** Invoke www_data (first_time)
** Execute www_data
** Invoke load:defaults (first_time)
** Execute load:defaults
** Invoke rvm:hook (first_time)
** Execute rvm:hook
** Invoke rvm:check (first_time)
** Execute rvm:check
rvm 1.27.0 (latest) by Wayne E. Seguin <wayneeseguin@gmail.com>, Michal Papis <mpapis@gmail.com> [https://rvm.io/]
ruby-2.1.0
ruby 2.1.0p0 (2013-12-25 revision 44422) [x86_64-linux]
** Invoke bundler:map_bins (first_time)
** Execute bundler:map_bins
** Invoke deploy:set_rails_env (first_time)
** Execute deploy:set_rails_env
** Invoke deploy:set_linked_dirs (first_time)
** Execute deploy:set_linked_dirs
** Invoke deploy:set_rails_env
** Invoke deploy:mounting_s3 (first_time)
** Execute deploy:mounting_s3
** Checking if public/system folder exists on webby
** testing if it is there true
** public/system folder exists..
** Checking if S3 is mounted
result public/system is not a mountpoint
** /home/deploy/apps/web_cc_cap1/current/public/system is not a mountpoint on webby
** public/system is not empty
** mounted folder exists
checking if folder is mounted
result /home/deploy/mounted is not a mountpoint
** Deleting mounted folder
00:00 deploy:mounting_s3
01 sudo rm -r /home/deploy/mounted
✔ 01 webby 0.649s
** mounted folder deleted
** mounting bucket
02 cd /home/deploy/ && mkdir unmounted && mkdir mounted
✔ 02 webby 0.631s
03 s3fs s3-bucket /home/deploy/mounted
✔ 03 webby 0.619s
** bucket mounted on /home/deploy/mounted folder
** copying files from public/system to unmounted
04 cp -r /home/deploy/apps/web_cc_cap1/shared/public/system/* /home/deploy/unmounted/.
✔ 04 webby 0.651s
** files copied
** syncing unmounted files to s3
05 rsync -av /home/deploy/unmounted /home/deploy/mounted
05 sending incremental file list
05 unmounted/
05 unmounted/ckeditor/
05 unmounted/ckeditor/pictures/
05 unmounted/ckeditor/pictures/16736/
05 unmounted/ckeditor/pictures/16736/bike.jpg
05 unmounted/ckeditor/pictures/16736/content_bike.jpg
05 unmounted/ckeditor/pictures/16736/thumb_bike.jpg
05
05 sent 750,943 bytes received 93 bytes 166,896.89 bytes/sec
05 total size is 750,396 speedup is 1.00
✔ 05 webby 4.299s
** Files synced
** unmounting mounted folder now for safety
06 fusermount -u /home/deploy/mounted
✔ 06 webby 0.631s
** folder unmounted
** deleting unmounted folder now
07 sudo rm -r /home/deploy/unmounted
✔ 07 webby 0.621s
** folders deleted
** emptying public/system
08 sudo rm -r /home/deploy/apps/web_cc_cap1/shared/public/system/../system/*
✔ 08 webby 0.649s
** folder is empty, mounting public/system
09 s3fs s3-bucket /home/deploy/apps/web_cc_cap1/current/public/system
✔ 09 webby 0.623s
** s3 is mounted
为什么不将文件发送到s3存储桶？
答案 0 :(得分：0)
我确实犯了一个错误，我的意图是复制未安装的文件夹和而不是文件夹本身的内容。所以我修复了rsync代码：rsync -av /home/deploy/unmounted/* /home/deploy/mounted并按预期工作。