How can I move my deploy key into vagrant?

I'd like to move a an ssh key into vagrant and put them in ~/.ssh, what's the easiest way of doing that? I have the following in my Vagrant file:

config.vm.synced_folder "conf.d", "/svr/conf.d"
config.vm.provision :shell, 
:inline => "ls -l /svr/conf.d/.ssh"

total 4 -rw-r--r-- 1 vagrant vagrant 1670 Mar 26 08:19 id_rsa.mediapop

config.vm.provision :shell, 
:inline => "cp /svr/conf.d/.ssh/id_rsa.mediapop /home/ubuntu/.ssh/id_rsa"
config.vm.provision :shell, 
:inline => "ls -l /home/ubuntu/.ssh"

total 4 -rw------- 1 ubuntu ubuntu 0 Mar 22 08:56 authorized_keys -rw-r--r-- 1 root root 1670 Mar 26 08:59 id_rsa

but then when I do vagrant ssh -c "ls -l ~/.ssh" I get:

$ vagrant ssh -c "ls -l ~/.ssh"
total 4
-rw-r--r-- 1 vagrant vagrant 409 Mar 20 04:47 authorized_keys

So vagrant is overwriting my .ssh directory.

Solution 1:

I put my SSH file in conf.d/.ssh/id_rsa.medipop and then did:

config.vm.synced_folder "conf.d", "/svr/conf.d"
config.vm.provision :shell, 
:inline => "cp /svr/conf.d/.ssh/id_rsa.mediapop /home/vagrant/.ssh/id_rsa"

Which worked splendidly once I realised the vagrant user is vagrant not ubuntu (which is why I was confused in my question as to why my ssh key seemed to disappear).

Solution 2:

What about SSH Agent Forwarding?

Make sure your SSH key works locally first then add config.ssh.forward_agent = true to your Vagrantfile to pass through.

Vagrant details here: http://docs.vagrantup.com/v2/vagrantfile/ssh_settings.html

Solution 3:

You can use Ruby's core File module, like so:

  config.vm.provision "shell" do |s|
    ssh_pub_key = File.readlines("#{Dir.home}/.ssh/id_rsa.pub").first.strip
    s.inline = <<-SHELL
      echo #{ssh_pub_key} >> /home/vagrant/.ssh/authorized_keys
      echo #{ssh_pub_key} >> /root/.ssh/authorized_keys
    SHELL
  end

I'm really surprised that Vagrant doesn't provide this by default!

Solution 4:

Take a look at the Vagrant Shell Provisioner, you'd add this to your Vagrantfile.

However, depending on what you're trying to achieve, it's probably better to use the supplied ssh key to access Vagrant.

To generate a quick config file to be added to your ~/.ssh/config, including an identity file line run $ vagrant ssh-config. You could then $ ssh you-vagrant-box rather than $ vagrant ssh.