指定执行shell命令时使用的私有SSH密钥？ [英] Specify private SSH-key to use when executing shell command?

问题描述

也许是一种非常不寻常的情况，但我想在本地计算机上执行shell（git）命令时指定一个私有SSH密钥。

基本上像这样：

  git clone [e-mail]：TheUser / TheProject.git -key/ home / christoffer / ssh_keys /用户
  

甚至更好（在Ruby中）：

  with_key（/ home / christoffer / ssh_keys / theuser）做
 sh（git clone [e-mail]：TheUser / TheProject.git）
 end 
  

我见过使用Net :: SSH连接远程服务器的例子，一个指定的私钥，但这是一个本地命令。是否可能？

解决方案

类似这样的东西应该可以工作（orip）：

  ssh-agent bash -c'ssh-add / somewhere / yourkey; git clone [e-mail]：user / project.git'
  

如果你喜欢subhell，你可以尝试以下操作（虽然它更脆弱）：

pre $ s $ s $ ssh-agent $（ssh-add / somewhere / yourkey; git clone [e-mail]：user / project.git）

Git会调用SSH来寻找其代理由环境变量;反过来，这将会加载密钥。

另外，设置 HOME 也可以做到这一点，你愿意设置一个只包含 .ssh 目录的目录作为 HOME ;这可能包含identity.pub或设置IdentityFile的配置文件。

A rather unusual situation perhaps, but I want to specify a private SSH-key to use when executing a shell (git) command from the local computer.

Basically like this:

git clone [e-mail]:TheUser/TheProject.git -key "/home/christoffer/ssh_keys/theuser"

Or even better (in Ruby):

with_key("/home/christoffer/ssh_keys/theuser") do
  sh("git clone [e-mail]:TheUser/TheProject.git")
end

I have seen examples of connecting to a remote server with Net::SSH that uses a specified private key, but this is a local command. Is it possible?

解决方案

Something like this should work (suggested by orip):

ssh-agent bash -c 'ssh-add /somewhere/yourkey; git clone [e-mail]:user/project.git'

if you prefer subshells, you could try the following (though it is more fragile):

ssh-agent $(ssh-add /somewhere/yourkey; git clone [e-mail]:user/project.git)

Git will invoke SSH which will find its agent by environment variable; this will, in turn, have the key loaded.

Alternatively, setting HOME may also do the trick, provided you are willing to setup a directory that contains only a .ssh directory as HOME; this may either contain an identity.pub, or a config file setting IdentityFile.

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