Error with setting ip with vagrant-env

[frezbo]

I have been using vagrant-env to set ip addresses for the VM's but not being able to set in some use cases, and vagrant up fails with the following error:

Bringing machine 'server' up with 'libvirt' provider...
/usr/share/ruby/ipaddr.rb:560:in `in6_addr': invalid address (IPAddr::InvalidAddressError)
    from /usr/share/ruby/ipaddr.rb:497:in `initialize'
    from /home/technoman/.vagrant.d/gems/gems/vagrant-libvirt-0.0.36/lib/vagrant-libvirt/action/create_networks.rb:264:in `new'
    from /home/technoman/.vagrant.d/gems/gems/vagrant-libvirt-0.0.36/lib/vagrant-libvirt/action/create_networks.rb:264:in `get_host_ip_addr'
    from /home/technoman/.vagrant.d/gems/gems/vagrant-libvirt-0.0.36/lib/vagrant-libvirt/action/create_networks.rb:126:in `handle_ip_option'
    from /home/technoman/.vagrant.d/gems/gems/vagrant-libvirt-0.0.36/lib/vagrant-libvirt/action/create_networks.rb:66:in `block (2 levels) in call'
    from /home/technoman/.vagrant.d/gems/gems/vagrant-libvirt-0.0.36/lib/vagrant-libvirt/action/create_networks.rb:36:in `each'
    from /home/technoman/.vagrant.d/gems/gems/vagrant-libvirt-0.0.36/lib/vagrant-libvirt/action/create_networks.rb:36:in `block in call'
    from /home/technoman/.vagrant.d/gems/gems/vagrant-libvirt-0.0.36/lib/vagrant-libvirt/action/create_networks.rb:33:in `synchronize'
    from /home/technoman/.vagrant.d/gems/gems/vagrant-libvirt-0.0.36/lib/vagrant-libvirt/action/create_networks.rb:33:in `call'
    from /usr/share/vagrant/lib/vagrant/action/warden.rb:34:in `call'
    from /home/technoman/.vagrant.d/gems/gems/vagrant-cachier-1.2.1/lib/vagrant-cachier/action/install_buckets.rb:14:in `call'
    from /usr/share/vagrant/lib/vagrant/action/warden.rb:34:in `call'
    from /usr/share/vagrant/lib/vagrant/action/builtin/provision.rb:80:in `call'
    from /usr/share/vagrant/lib/vagrant/action/warden.rb:34:in `call'
    from /home/technoman/.vagrant.d/gems/gems/vagrant-cachier-1.2.1/lib/vagrant-cachier/action/configure_bucket_root.rb:20:in `call'
    from /usr/share/vagrant/lib/vagrant/action/warden.rb:34:in `call'
    from /usr/share/vagrant/lib/vagrant/action/warden.rb:95:in `block in finalize_action'
    from /usr/share/vagrant/lib/vagrant/action/warden.rb:34:in `call'
    from /usr/share/vagrant/lib/vagrant/action/builder.rb:116:in `call'
    from /usr/share/vagrant/lib/vagrant/action/runner.rb:66:in `block in run'
    from /usr/share/vagrant/lib/vagrant/util/busy.rb:19:in `busy'
    from /usr/share/vagrant/lib/vagrant/action/runner.rb:66:in `run'
    from /usr/share/vagrant/lib/vagrant/action/builtin/call.rb:53:in `call'
    from /usr/share/vagrant/lib/vagrant/action/warden.rb:34:in `call'
    from /usr/share/vagrant/lib/vagrant/action/warden.rb:95:in `block in finalize_action'
    from /usr/share/vagrant/lib/vagrant/action/warden.rb:34:in `call'
    from /usr/share/vagrant/lib/vagrant/action/builder.rb:116:in `call'
    from /usr/share/vagrant/lib/vagrant/action/runner.rb:66:in `block in run'
    from /usr/share/vagrant/lib/vagrant/util/busy.rb:19:in `busy'
    from /usr/share/vagrant/lib/vagrant/action/runner.rb:66:in `run'
    from /usr/share/vagrant/lib/vagrant/action/builtin/call.rb:53:in `call'
    from /usr/share/vagrant/lib/vagrant/action/warden.rb:34:in `call'
    from /usr/share/vagrant/lib/vagrant/action/builtin/config_validate.rb:25:in `call'
    from /usr/share/vagrant/lib/vagrant/action/warden.rb:34:in `call'
    from /usr/share/vagrant/lib/vagrant/action/warden.rb:95:in `block in finalize_action'
    from /usr/share/vagrant/lib/vagrant/action/warden.rb:34:in `call'
    from /usr/share/vagrant/lib/vagrant/action/builder.rb:116:in `call'
    from /usr/share/vagrant/lib/vagrant/action/runner.rb:66:in `block in run'
    from /usr/share/vagrant/lib/vagrant/util/busy.rb:19:in `busy'
    from /usr/share/vagrant/lib/vagrant/action/runner.rb:66:in `run'
    from /usr/share/vagrant/lib/vagrant/action/builtin/call.rb:53:in `call'
    from /usr/share/vagrant/lib/vagrant/action/warden.rb:34:in `call'
    from /usr/share/vagrant/lib/vagrant/action/builtin/config_validate.rb:25:in `call'
    from /usr/share/vagrant/lib/vagrant/action/warden.rb:34:in `call'
    from /home/technoman/.vagrant.d/gems/gems/vagrant-triggers-0.5.3/lib/vagrant-triggers/action/trigger.rb:17:in `call'
    from /usr/share/vagrant/lib/vagrant/action/warden.rb:34:in `call'
    from /home/technoman/.vagrant.d/gems/gems/vagrant-triggers-0.5.3/lib/vagrant-triggers/action/trigger.rb:17:in `call'
    from /usr/share/vagrant/lib/vagrant/action/warden.rb:34:in `call'
    from /home/technoman/.vagrant.d/gems/gems/vagrant-triggers-0.5.3/lib/vagrant-triggers/action/trigger.rb:17:in `call'
    from /usr/share/vagrant/lib/vagrant/action/warden.rb:34:in `call'
    from /usr/share/vagrant/lib/vagrant/action/builder.rb:116:in `call'
    from /usr/share/vagrant/lib/vagrant/action/runner.rb:66:in `block in run'
    from /usr/share/vagrant/lib/vagrant/util/busy.rb:19:in `busy'
    from /usr/share/vagrant/lib/vagrant/action/runner.rb:66:in `run'
    from /usr/share/vagrant/lib/vagrant/machine.rb:224:in `action_raw'
    from /usr/share/vagrant/lib/vagrant/machine.rb:199:in `block in action'
    from /usr/share/vagrant/lib/vagrant/environment.rb:561:in `lock'
    from /usr/share/vagrant/lib/vagrant/machine.rb:185:in `call'
    from /usr/share/vagrant/lib/vagrant/machine.rb:185:in `action'
    from /usr/share/vagrant/lib/vagrant/batch_action.rb:82:in `block (2 levels) in run'

My .env file

export TLD=com
export DOMAIN=test.tld.$TLD
export DOMAIN1=example.$TLD
export REV_DOMAIN=$(echo $DOMAIN | tr "." "\n" | tac | tr "\n" "." | sed 's/.$/\n/g')
export REALM=${DOMAIN^^}
export SERVER_IP=192.168.14.21
export SERVER_IP1=192.168.33.21
export SERVER_IP2=$(echo $SERVER_IP1 | cut -d "." -f 1-3).$((($(echo $SERVER_IP | cut -d "." -f 4)+10)))

My Vagrant file

Vagrant.configure(2) do |config|
config.env.enable 'scripts/.env'
 config.vm.box = "centos/7"
 config.vm.define "server" do |a|
  a.vm.provider "libvirt" do |v|
    v.memory = 1024
    v.cpus = 2
    v.storage :file, :size => '20G'
  end
  a.vm.network "private_network", ip: ENV['SERVER_IP']
  a.vm.network "private_network", ip: ENV['SERVER_IP1']
  a.vm.network "private_network", ip: ENV["SERVER_IP2"]
  a.vm.synced_folder ".", "/vagrant", disabled: true
  a.vm.provision "shell", inline: <<-SHELL
   #chmod u+x /usr/local/scripts/server.sh
   #/usr/local/scripts/server.sh
   sed -i 's/PasswordAuthentication no/PasswordAuthentication yes/g' /etc/ssh/sshd_config
   systemctl restart sshd
  SHELL
  end
end

vagrant up fails but does not fail if i do source scripts/.env before vagrant up.

[beporter]

For future googlers:

The issue here is probably that when you source .env from your shell, the values such as SERVER_IP2 are properly interpolated by your shell.

When the .env file is imported via this plugin that doesn't happen, so the literal value of ENV('SERVER_IP2') as far as your Vagrantfile is concerned is $(echo $SERVER_IP1 | cut -d "." -f 1-3).$((($(echo $SERVER_IP | cut -d "." -f 4)+10))) instead of the expected 192.168.14.31.