Can't disable NFS syncing

[slatei]

Hi, I am trying to create a VM using Vagrant with libvirt with nfs-kernel-server installed, however I want to sync all folders with rsync without sudo privileges
My current issue is that everything I try to disable NFS pruning has been unsuccessful, and the only thing I can do to force Vagrant to not use NFS is to uninstall nfs-kernel-server, which is undesirable

Please help :)

Steps to reproduce

1. Install nfs-kernel-server (sudo apt-get install -y nfs-kernel-server)
2. Install Vagrant version 2.0.3
3. Setup blank Vagrantfile with NFS exports disabled
4. Run vagrant up

Expected behaviour

Vagrant should create domain without asking for password

Actual behaviour

==> default: Pruning invalid NFS exports. Administrator privileges will be required...
[sudo] password for user:

System configuration

OS/Distro version:: Ubuntu 16.04, Linux V4.4.0-38

Libvirt version: 1.3.1

Output of vagrant version; vagrant plugin list:
Vagrant 2.0.3

vagrant-libvirt (0.0.43)
vagrant-puppet-install (5.0.0)
vagrant-reload (0.0.1)

Output of VAGRANT_LOG=debug vagrant ... --provider=libvirt

==> default:  -- INPUT:             type=mouse, bus=ps2
 INFO machine: New machine ID: "9ef4cd4c-04f6-431e-8e7c-8223b400df09"
 INFO warden: Calling IN action: #<Vagrant::Action::Builtin::Provision:0x000000000387b290>
 INFO provision: Checking provisioner sentinel file...
 INFO warden: Calling IN action: #<VagrantPlugins::PuppetInstall::Action::InstallPuppet:0x0000000003827960>
 INFO warden: Calling IN action: #<VagrantPlugins::ProviderLibvirt::Action::PrepareNFSValidIds:0x00000000037de490>
 INFO warden: Calling IN action: #<VagrantPlugins::SyncedFolderNFS::ActionCleanup:0x0000000003788248>
DEBUG host: Searching for cap: nfs_prune
DEBUG host: Checking in: linux
DEBUG host: Found cap: nfs_prune in linux
 INFO nfs: NFS pruning. Valid IDs: ["9ef4cd4c-04f6-431e-8e7c-8223b400df09"]
DEBUG host: Searching for cap: nfs_prune
DEBUG host: Checking in: linux
DEBUG host: Found cap: nfs_prune in linux
 INFO host: Execute capability: nfs_prune [#<Vagrant::Environment: /home/jslave/test>, #<Vagrant::UI::Prefixed:0x00000000038c91c0 @logger=#<Log4r::Logger:0x00000000038c9170 @fullname="vagrant::ui::interface", @outputters=[], @additive=true, @name="interface", @path="vagrant::ui", @parent=#<Log4r::Logger:0x00000000021eb890 @fullname="vagrant", @outputters=[#<Log4r::StderrOutputter:0x0000000002190468 @mon_owner=nil, @mon_count=0, @mon_mutex=#<Thread::Mutex:0x00000000021903c8>, @name="stderr", @level=0, @formatter=#<Vagrant::Util::LoggingFormatter:0x000000000207eed0 @formatter=#<Log4r::BasicFormatter:0x00000000021357c0 @depth=7>>, @out=#<IO:<STDERR>>>], @additive=true, @name="vagrant", @path="", @parent=#<Log4r::RootLogger:0x00000000021eb070 @level=0, @outputters=[]>, @level=1, @trace=false>, @level=1, @trace=false>, @opts={}, @stdin=#<IO:<STDIN>>, @stdout=#<IO:<STDOUT>>, @stderr=#<IO:<STDERR>>, @prefix=:default, @ui=#<Vagrant::UI::Colored:0x0000000002d12d18 @logger=#<Log4r::Logger:0x0000000002d12ca0 @fullname="vagrant::ui::interface", @outputters=[], @additive=true, @name="interface", @path="vagrant::ui", @parent=#<Log4r::Logger:0x00000000021eb890 @fullname="vagrant", @outputters=[#<Log4r::StderrOutputter:0x0000000002190468 @mon_owner=nil, @mon_count=0, @mon_mutex=#<Thread::Mutex:0x00000000021903c8>, @name="stderr", @level=0, @formatter=#<Vagrant::Util::LoggingFormatter:0x000000000207eed0 @formatter=#<Log4r::BasicFormatter:0x00000000021357c0 @depth=7>>, @out=#<IO:<STDERR>>>], @additive=true, @name="vagrant", @path="", @parent=#<Log4r::RootLogger:0x00000000021eb070 @level=0, @outputters=[]>, @level=1, @trace=false>, @level=1, @trace=false>, @opts={:color=>:default}, @stdin=#<IO:<STDIN>>, @stdout=#<IO:<STDOUT>>, @stderr=#<IO:<STDERR>>, @lock=#<Thread::Mutex:0x0000000002cc4870>>>, ["9ef4cd4c-04f6-431e-8e7c-8223b400df09"]] (linux)
 INFO linux: Pruning invalid NFS entries...
DEBUG linux: Known valid NFS export IDs: ["9ef4cd4c-04f6-431e-8e7c-8223b400df09"]
DEBUG linux: Composite valid NFS export IDs with user: ["1000 9ef4cd4c-04f6-431e-8e7c-8223b400df09"]
DEBUG linux: NFS export IDs to be removed: ["1000 aa5976c4-0c6a-4466-a352-d59f13ac226e"]
 INFO interface: info: Pruning invalid NFS exports. Administrator privileges will be required...
 INFO interface: info: ==> default: Pruning invalid NFS exports. Administrator privileges will be required...
==> default: Pruning invalid NFS exports. Administrator privileges will be required...
 INFO subprocess: Starting process: ["/usr/bin/sudo", "chown", "0:0", "/tmp/vagrant20180717-30874-71gl3u"]
 INFO subprocess: Command not in installer, restoring original environment...
DEBUG subprocess: Selecting on IO
[sudo] password for user: 

A Vagrantfile to reproduce the issue:

# -*- mode: ruby -*-
# vi: set ft=ruby :

Vagrant.configure("2") do |config|
  config.vm.box = "elastic/ubuntu-16.04-x86_64"
  config.vm.box_version = "20180210.0.0"

  config.ssh.insert_key = false
  config.nfs.functional = false

  config.vm.synced_folder ".", "/vagrant", type: 'rsync', disabled: true, nfs: false, nfs_prune: false, server_setup: false

  config.vm.provider "libvirt" do |lv|
    lv.memory = "1024"
    lv.cpus = 2
  end
end

Are you using upstream vagrant package or your distros package?
Upstream

[chulup]

Hello,
I am using the following to disable NFS entirely in my Vagrantfile:

  config.nfs.verify_installed = false
  config.vm.synced_folder '.', '/vagrant', disabled: true

Not sure how this would work with rsync though.

[electrofelix]

@slatei I believe that @chulup has provided the correct answer, this isn't something is due to vagrant-libvirt, but rather with vagrant itself.

[nirs]

I'm using this to keep rsync enabled, but disable nfs:

config.nfs.verify_installed = false
config.vm.synced_folder '.', '/vagrant', type: 'rsync'

Tested with Vagrant 2.2.19.

[nicolaipre]

Experienced the same problem. Solved it like this:

config.nfs.functional = false
config.nfs.verify_installed = false
config.vm.synced_folder "./shared", "/shared", type: "rsync", nfs: false

nfs: false is probably not needed.