Creating machine name with a variable

[Luke Jaeger]

I'm trying to set up my Vagrantfile so that it appends the current date and time to the hostname.

This works on Mac OS but not on Windows. Is there some other way for me to do this?

thanks!

########

# -*- mode: ruby -*-

# vi: set ft=ruby :

# All Vagrant configuration is done below. The "2" in Vagrant.configure

# configures the configuration version (we support older styles for

# backwards compatibility). Please don't change it unless you know what

# you're doing.

## THIS IS THE VAGRANTFILE FOR GENERIC 'my-linux-vm'

username = `whoami`.chomp # you need chomp as the result of the command executed this way returns \n at the end

myDate = `date +%Y-%m-%d-%H.%M.%S`.chomp

myhostname = "#{username}-linux-vm-#{myDate}"

Vagrant.configure("2") do |config|

  config.vm.box = "ubuntu/bionic64"

  config.vm.provision :shell, path: "install-extras.sh"

  

  # this works:

  config.vm.hostname = "#{myhostname}"

  

  config.vm.provider "virtualbox" do |v|

    v.name = "#{myhostname}"

  end

  config.trigger.after :up  do |updatePkgs|

  updatePkgs.warn = "Checking for software updates"

  updatePkgs.run_remote = {inline: "apt-get --with-new-pkgs upgrade -y"}

  end

  config.vm.synced_folder "./shared", "/shared", create: true

end

[Jeff Bonhag]

Hi there,

Rather than shelling out to command line tools to get those values, you can use some built-in Ruby functions to achieve the same result. That will make your Vagrantfile a little more cross-platform compatible.

Try something like this:

  require 'date'

  username = ENV['USERNAME'] || ENV['USER']
  myDate = DateTime.now.strftime('%Y-%m-%d-%H.%M.%S')

  myhostname = "#{username}-linux-vm-#{myDate}"

  Vagrant.configure("2") do |config|
    config.vm.box = "ubuntu/bionic64"

    config.vm.hostname = "#{myhostname}"
  end

Cheers,
Jeff

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[Luke Jaeger]

thank you! that worked!

Luke Jaeger | www.trickfilm.org

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