Install Ubuntu VM in VirtualBox using vagrant

1. Vagrant
Virtualbox provider guide

2. Install
Prerequisites
apt-get -y install virtualbox virtualbox-dkms vagrant
VM image
vagrant box add trusty64 https://oss-
binaries.phusionpassenger.com/vagrant/boxes/latest/ubuntu-14.04-amd64-
vbox.box

3. Operate
Start image
vagrant init && vagrant up
Connect
vagrant ssh
Suspend or shutdown
vagrant suspend && vagrant halt

4. Provisioning
Create bootstrap.sh with all the configuration
Modify Vagrantfile
config.vm.provision :shell, path: "bootstrap.sh"
Provision
vagrant provision

5. Bootstrap as a regular user
By default script is run as root, to run as a different user do the following.
case $(id -u) in
0) # doing root tasks
sudo -u vagrant -i $0
;;
*) # doing user tasks
;;
esac

6. Configure CPU and RAM
Modify Vagrantfile
config.vm.provider "virtualbox" do |vb|
vb.customize ["modifyvm", :id, "--memory", "1024"]
vb.customize ["modifyvm", :id, "--cpuexecutioncap", "50"]
vb.customize ["modifyvm", :id, "--ioapic", "on"]
vb.customize ["modifyvm", :id, "--cpus", "4"]
end

7. Configure network
Modify Vagrantfile
config.vm.network "public_network", bridge: "br-1", ip: "192.168.56.2"
config.vm.network "public_network", bridge: "br-2", ip: "192.168.57.2"
config.vm.network "public_network", bridge: "br-3", ip: "192.168.58.2"

8. Copy files to VM
Vagrant.configure("2") do |config|
# ... other configuration
config.vm.provision "file", source: "~/.gitconfig", destination: ".gitconfig"
end

9. GUI
config.vm.provider "virtualbox" do |vb|
vb.gui = true
end

10. References
Vagrant virtualbox configuration
How to make Vagrant performance not suck

11. My blog
Learning Network Programming