Vagrant

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Note: This page is about vagrant, see Vagrant Box for the NixOS vagrant boxes.

NixOS as Host

Using NFS mounts

Add to your configuration.nix:

{
  # Minimal configuration for NFS support with Vagrant.
  services.nfs.server.enable = true;
  # !!! This is "unsafe", ports needed should be found and fixed here.
  networking.firewall.enable = false;
}

This will make NFS mounts work.

Note: Do note that vagrant will, by default, want to use sudo and modify /etc/exports. As long as you are not defining exports with configuration.nix, vagrant should be able to work.

Plugins

NixOS Plugin

See the NixOS vagrant box page, which as information about the vagrant-nixos-plugin project.

Troubleshooting: conflicting dependencies bundler when installing vagrant plugins

As of 18.03 vagrant plugins are broken:

$  vagrant plugin update
Updating installed plugins...
Bundler, the underlying system Vagrant uses to install plugins,
reported an error. The error is shown below. These errors are usually
caused by misconfigured plugin installations or transient network
issues. The error from Bundler is:
conflicting dependencies bundler (= 1.14.6) and bundler (= 1.16.1)
  Activated bundler-1.16.1
  which does not match conflicting dependency (= 1.14.6)
  Conflicting dependency chains:
    bundler (= 1.16.1), 1.16.1 activated
  versus:
    bundler (= 1.14.6)
  Gems matching bundler (= 1.14.6):
    bundler-1.14.6

using the following nix expression fixes the problems:

(import <nixpkgs> {
    overlays = [
      (self: super: {
        bundler = super.bundler.overrideAttrs (old: {
          name = "bundler-1.16.1";
          src = super.fetchurl {
            url = "https://rubygems.org/gems/bundler-1.16.1.gem";
            sha256 = "1s2nq4qnffxg3kwrk7cnwxcvfihlhxm9absl2l6d3qckf3sy1f22";
          };
        });
      })
    ];
  }).vagrant

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