Why this post?
In this post I would like to focus on some this and that for Vagrant. These thighs are really helpful in everyday’s work with Vagrant.
Multiple boxes
It is possible to spin up more than one box.
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# -*- mode: ruby -*-
# vi: set ft=ruby :
VAGRANTFILE_API_VERSION = "2"
Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
config.vm.define "node1" do |n1|
n1.vm.box = "hashicorp/precise64"
# this could provisioned by shell script for example
end
config.vm.define "node2" do |n2|
n2.vm.box = "chef/centos-6.5"
# and this with Chef
end
end
Environment variables
It is possible to use environment variables in Vagrantfile. You can do it in the same way as in Ruby by calling ENV['variable_name']
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# -*- mode: ruby -*-
# vi: set ft=ruby :
VAGRANTFILE_API_VERSION = "2"
Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
# firstly, export boxname=hashicorp/precise64
config.vm.box = "#{ENV['boxname']}"
end
Random number of boxes
Vagrantfile allows to use Ruby code. Let’s create a random number of Vagrant boxes.
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# -*- mode: ruby -*-
# vi: set ft=ruby :
VAGRANTFILE_API_VERSION = "2"
Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
Random.rand(3..8).times do |i|
config.vm.define "horst-box#{i + 1}" do |node|
node.vm.box = "hashicorp/precise64"
end
end
end
Network settings
In Vagrantfile you can configure ip address for your boxes and forward specific ports.
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# -*- mode: ruby -*-
# vi: set ft=ruby :
VAGRANTFILE_API_VERSION = "2"
Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
config.vm.box = "hashicorp/precise64"
config.vm.network "private_network", ip: "192.168.1.2"
config.vm.network "forwarded_port", guest: 80, host: 8888
end
Synchronized folders
Vagrant also allows to synchronize folders. By default current workspace (directory on the host where is Vagrantfile) is available in /vagrant on guest.
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# -*- mode: ruby -*-
# vi: set ft=ruby :
VAGRANTFILE_API_VERSION = "2"
Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
config.vm.box = "hashicorp/precise64"
config.vm.synced_folder "/Users/paweloczadly/dev", "/dev_data"
end
Virtualbox settings
Last thing which I would like to show is customization of some settings for Virtualbox provider: box name, it’s memory and processors.
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# -*- mode: ruby -*-
# vi: set ft=ruby :
VAGRANTFILE_API_VERSION = "2"
Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
config.vm.box = "hashicorp/precise64"
config.vm.provider "virtualbox" do |vb|
vb.gui = true
vb.name = 'new-name-of-the-box'
vb.memory = 2048
vb.cpus = 4
end
end