1 files changed, 58 insertions, 0 deletions
diff --git a/nixos/modules/virtualisation/vagrant-guest.nix b/nixos/modules/virtualisation/vagrant-guest.nix
new file mode 100644
index 00000000000..263b1ebca08
--- /dev/null
+++ b/nixos/modules/virtualisation/vagrant-guest.nix
@@ -0,0 +1,58 @@
+# Minimal configuration that vagrant depends on
+
+{ config, pkgs, ... }:
+let
+  # Vagrant uses an insecure shared private key by default, but we
+  # don't use the authorizedKeys attribute under users because it should be
+  # removed on first boot and replaced with a random one. This script sets
+  # the correct permissions and installs the temporary key if no
+  # ~/.ssh/authorized_keys exists.
+  install-vagrant-ssh-key = pkgs.writeScriptBin "install-vagrant-ssh-key" ''
+    #!${pkgs.runtimeShell}
+    if [ ! -e ~/.ssh/authorized_keys ]; then
+      mkdir -m 0700 -p ~/.ssh
+      echo "ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEA6NF8iallvQVp22WDkTkyrtvp9eWW6A8YVr+kz4TjGYe7gHzIw+niNltGEFHzD8+v1I2YJ6oXevct1YeS0o9HZyN1Q9qgCgzUFtdOKLv6IedplqoPkcmF0aYet2PkEDo3MlTBckFXPITAMzF8dJSIFo9D8HfdOV0IAdx4O7PtixWKn5y2hMNG0zQPyUecp4pzC6kivAIhyfHilFR61RGL+GPXQ2MWZWFYbAGjyiYJnAmCP3NOTd0jMZEnDkbUvxhMmBYSdETk1rRgm+R4LOzFUGaHqHDLKLX+FIPKcF96hrucXzcWyLbIbEgE98OHlnVYCzRdK8jlqm8tehUc9c9WhQ== vagrant insecure public key" >> ~/.ssh/authorized_keys
+      chmod 0600 ~/.ssh/authorized_keys
+    fi
+  '';
+in
+{
+  # Enable the OpenSSH daemon.
+  services.openssh.enable = true;
+
+  # Packages used by Vagrant
+  environment.systemPackages = with pkgs; [
+    findutils
+    iputils
+    nettools
+    netcat
+    nfs-utils
+    rsync
+  ];
+
+  users.extraUsers.vagrant = {
+    isNormalUser    = true;
+    createHome      = true;
+    description     = "Vagrant user account";
+    extraGroups     = [ "users" "wheel" ];
+    home            = "/home/vagrant";
+    password        = "vagrant";
+    useDefaultShell = true;
+    uid             = 1000;
+  };
+
+  systemd.services.install-vagrant-ssh-key = {
+    description = "Vagrant SSH key install (if needed)";
+    after = [ "fs.target" ];
+    wants = [ "fs.target" ];
+    wantedBy = [ "multi-user.target" ];
+    serviceConfig = {
+      ExecStart = "${install-vagrant-ssh-key}/bin/install-vagrant-ssh-key";
+      User = "vagrant";
+      # So it won't be (needlessly) restarted:
+      RemainAfterExit = true;
+    };
+  };
+
+  security.sudo.wheelNeedsPassword = false;
+}