Basic Vagrant commands

• Creating a virtual machine running Ubuntu 18.04 LTS 64-bit

          
            $ vagrant init hashicorp/bionic64
            $ vagrant up
            $ vagrant ssh
          
        

Vagrantfile

A single script to initialize a VM

          
            # Basic Vagrantfile
            Vagrant.configure("2") do |config|
              config.vm.box = "hashicorp/bionic64"
            end
          
        

Vagrant boxes

• Configuring and setting up virtual machines can be complicated and slow. Vagrant allows you bypass this by using existing base images called 'boxes'.

          
            $ vagrant box add continuumio/anaconda3
          
        

Provisioning

• Set up what you want on your virtual box

          
  #!/usr/bin/env bash
  # bootstrap.sh

  apt-get update
  apt-get install -y apache2
  if ! [ -L /var/www ]; then
    rm -rf /var/www
    ln -fs /vagrant /var/www
  fi
          
        

          
  # line in your Vagrantfile
  Vagrant.configure("2") do |config|
    config.vm.box = "hashicorp/bionic64"
    config.vm.provision :shell, path: "bootstrap.sh"
  end
          
        

Cleaning up Vagrant

Switching off your Vagrant VM

          
            $ vagrant suspend

            $ vagrant halt

            $ vagrant destroy
          
        

Vagrant case studies

Test all this code out yourself using the vagrant_examples directory in the GitHub Repo for this presentation

Vagrant case studies

• Get yourself a Ubuntu Desktop

          
            $ git clone https://github.com/heidemn/vagrant-bionic-desktop.git
            $ cd vagrant-bionic-desktop
            $ vagrant up 2>&1 | tee log.txt
            $ vagrant reload
          
        

Vagrant case studies

• Using your host ssh keys on a Vagrant box

          
      Vagrant.configure("2") do |config|
        config.vm.box = "hashicorp/bionic64"
        # line to forward active ssh agent from host to guest
        config.ssh.forward_agent = true
        config.vm.provision :shell, path: "bootstrap.sh"
      end
          
        

Vagrant case studies

• Accessing host machine files on Vagrant

          
                      $ vagrant up
                      ...
                      $ vagrant ssh
                      ...
                      vagrant@bionic64:~$ ls /vagrant
                      Vagrantfile
          
        

Vagrant case studies

• So you've got a nice shiny/flask app you want to develop and test before putting it on a server?

          
    Vagrant.configure(2) do |config|
      config.vm.box = "hashicorp/bionic64"
      # run bootstrap.sh when vagrant sets up the VM
      config.vm.provision :shell, path: "bootstrap.sh"
      # networking through Vagrant
      config.vm.network :forwarded_port, guest: 4567, host: 4567
    end
          
        

Vagrant case studies

• Building Docker containers

          
        Vagrant.configure("2") do |config|
          config.vm.box = "pogosoftware/ubuntu-18.04-docker"
          config.vm.network "forwarded_port", guest: 8000, host: 8000
          config.vm.provision "shell", inline: <<-SHELL
          git clone https://github.com/datawire/hello-world.git
          SHELL
        end