Add Vagrant file for distribute build example

.gitignore

@@ -1 +1,2 @@
+.vagrant/
 .DS_Store

Vagrantfile

@@ -0,0 +1,35 @@
+# -*- 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.
+Vagrant.configure("2") do |config|
+  config.vm.box = "ubuntu/trusty64"
+
+  (1..2).each do |number|
+    config.vm.define "jenkins-agent-#{number}" do |node|
+      node.vm.network "forwarded_port", guest: 22, host: "909#{number}"
+      node.vm.network "private_network", ip: "192.168.99.20#{number}"
+      node.vm.hostname = "jenkins-agent-#{number}"
+    end
+  end
+
+  config.vm.provider "virtualbox" do |vb|
+    vb.memory = "2048"
+  end
+
+  config.vm.provision "shell", inline: <<-SHELL
+    sudo add-apt-repository ppa:openjdk-r/ppa -y
+    sudo apt-get update
+    sudo apt-get -y install openjdk-8-jdk
+    sudo update-alternatives --config java
+    sudo apt-get -y install git
+    sudo useradd -m jenkins
+    echo "jenkins:jenkins" | sudo chpasswd
+    sudo keytool -importkeystore -srckeystore /etc/ssl/certs/java/cacerts -destkeystore /etc/ssl/certs/java/cacerts.jks -deststoretype JKS -srcstorepass changeit -deststorepass changeit -noprompt
+    sudo mv /etc/ssl/certs/java/cacerts.jks /etc/ssl/certs/java/cacerts
+    sudo /var/lib/dpkg/info/ca-certificates-java.postinst configure
+  SHELL
+end