use ssh private key from host in vagrant guest

vagrant

Solution

Please check whether your host system has ssh-agent forwarding enabled. You can do so for example by adding this block to your `~/.ssh/config` file:

Host                    *
  ForwardAgent          yes

If this is enabled `vagrant ssh` (and also `vagrant provision`) should be able to forward your key to the guest machine.

You also might want to check using `ssh-add -l` whether your ssh-agent does know about your SSH-key. If it is in the list and you have agent-forwarding activated you should have a success. Otherwise you can add the key to your ssh-agent by running `ssh-add <path to your key file>`.

Problem

I want to clone a bunch of private git repositories while provisioning a vagrant box. According to this article this should be possible using `config.ssh.forward_agent = true`. However, when trying to connect to github via something like `ssh -T git@github.com -o StrictHostKeyChecking=no` it fails with the following error: Warning: Permanently added 'github.com,192.30.252.130' (RSA) to the list of known hosts. Permission denied (publickey). I cut my configuration down to the simplest possible configuration. You can find it here: https://gist.github.com/TomTasche/31f7c45fcffc2997d43a When I do "vagrant ssh" and try the same again, a similar error occurs: Cloning into 'private-repositories'... Warning: Permanently added the RSA host key for IP address '192.30.252.130' to the list of known hosts. Permission denied (publickey). fatal: The remote end hung up unexpectedly Edit: the configuration linked above does work on a host running Ubuntu, but does neither work on a Mac host, nor on a Windows host. My goal is to have a configuration that works on all these three hosts.

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