在Windows上使用Vagrant的docker提供程序时出现Rsync"权限被拒绝"错误

Question

刚刚从官方网站安装了vagrant 1.7.4,除了其他软件:Virtual Box,cygwin(rsync和openssh).像ubuntu/trusty或centos/7这样的其他盒子似乎可以工作.当我尝试使用docker作为提供程序时出现错误.这是我的流浪文件

Vagrant.configure(2) do |config|        
  config.vm.network "public_network", ip: "192.168.1.103" 
  config.ssh.insert_key=true
  config.vm.provider "docker" do |d|
    #d.vagrant_vagrantfile = "vagrantfile-boot2docker"  
    d.build_dir = "."
  end
  ENV["VAGRANT_DETECTED_OS"] = ENV["VAGRANT_DETECTED_OS"].to_s + " cygwin"
end

这是控制台中发生的事情.

$ vagrant up
Bringing machine 'default' up with 'docker' provider...
==> default: Docker host is required. One will be created if necessary...
    default: Docker host VM is already ready.
==> default: Syncing folders to the host VM...
    default: The machine you're rsyncing folders to is configured to use
    default: password-based authentication. Vagrant can't script rsync to automatically
    default: enter this password, so you'll likely be prompted for a password
    default: shortly.
    default:
    default: If you don't want to have to do this, please enable automatic
    default: key insertion using `config.ssh.insert_key`.
    default: Rsyncing folder: /cygdrive/f/st***/Pre*****/ => /var/lib/docker/docker_1447743654_45276
There was an error when attempting to rsync a synced folder.
Please inspect the error message below for more info.

Host path: /cygdrive/f/st***/Pre*****/
Guest path: /var/lib/docker/docker_1447743654_45276
Command: rsync --verbose --archive --delete -z --copy-links --chmod=ugo=rwX --no-perms --no-owner --no-group --rsync-path sudo rsync -e ssh -p 2201 -o StrictHostKeyChecking=no -o
IdentitiesOnly=true -o UserKnownHostsFile=/dev/null --exclude 
.vagrant/ /cygdrive/f/st***/Pre*****/
docker@127.0.0.1:/var/lib/docker/docker_1447743654_45276
Error: Warning: Permanently added '[127.0.0.1]:2201' (ECDSA) to the list of known hosts.
Permission denied, please try again.
Permission denied, please try again.
Permission denied (publickey,password,keyboard-interactive).
rsync: connection unexpectedly closed (0 bytes received so far) [sender]
rsync error: error in rsync protocol data stream (code 12) at io.c(226) [sender=3.1.1]

据我了解权限问题,但我不确定boot2docker或主机的权限.我也尝试过没有config.ssh.insert_key = true - 同样的结果.

更新:
尝试手动执行日志中的大rsync命令.显示错误

连接到主机127.0.0.1端口22:连接被拒绝

但使用ssh docker@127.0.0.1 -p 2201的直接连接是成功的.

所以问题可能是rsync命令使用了错误的端口.

Update2
最后, rsync -e 'ssh -p 2201' --rsync-path='sudo rsync' -avz /cygdrive/f/st***/Pre****/ docker@127.0.0.1:/var/lib/docker/docker_1447763422_11407同步所有内容应该没有任何问题.但问题是开放的,为什么流浪汉没有正确地做到这一点.