Build and run k3os using packer, vagrant and virtualbox

K3os-packer-vagrant-virtualbox.md

Packer and Vagrant resources to build k3os in VirtualBox

Requirements

• packer
• vagrant
• virtualbox

Build and Run

1. packer build k3os.json
2. vagrant up
3. vagrant ssh k3s is running in the provisioned machine

Cleanup

1. vagrant halt
2. vagrant destroy
3. rm packer_virtualbox-iso_virtualbox.box

Known issues

• On a slow network, the packer build fails due to a timing issue downloading the cloud-config.yml
  • This can be remedied by adding a <waitXX> command like this

...
    "boot_command": ["rancher","<enter>","wget --no-check-certificate https://raw.githubusercontent.com/wjimenez5271/k3os-vagrant/master/cloud-config.yml","<enter>","<wait20>","sudo os-config","<enter>","1","<enter>","y","<enter>","/home/rancher/cloud-config.yml","<enter>","Y","<enter>"],
...

k3os.json

{
  "variables": {
    "password": "rancher"
  },
  "builders": [{
    "type": "virtualbox-iso",
    "output_directory": "boxes",
    "boot_wait": "24s",
    "boot_command": ["rancher","<enter>","wget --no-check-certificate https://raw.githubusercontent.com/wjimenez5271/k3os-vagrant/master/cloud-config.yml","<enter>","<wait10>","sudo os-config","<enter>","1","<enter>","y","<enter>","/home/rancher/cloud-config.yml","<enter>","Y","<enter>"],
    "guest_os_type": "Linux_64",
    "vm_name": "k3os-amd64-v0.2.0",
    "iso_url": "https://github.com/rancher/k3os/releases/download/v0.2.0/k3os-amd64.iso",
    "iso_checksum": "33042e2b7c1f530dca5d478c1c546904",
    "iso_checksum_type": "md5",
    "ssh_username": "rancher",
    "ssh_password": "{{user `password`}}",
    "ssh_wait_timeout":"1000s",
    "disk_size": "8000",
    "shutdown_command": "sudo poweroff",
    "post_shutdown_delay": "10s",
    "format":"ova"

  }],
  "provisioners":[
    {
      "type": "shell",
      "execute_command": "{{ .Vars }} sudo -E sh '{{ .Path }}'",
      "inline": ["echo hello world"]
    }
  ],
  "post-processors": [ 
    "vagrant"]
}

Vagrantfile

# -*- 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|
  # The most common configuration options are documented and commented below.
  # For a complete reference, please see the online documentation at
  # https://docs.vagrantup.com.

  # Every Vagrant development environment requires a box. You can search for
  # boxes at https://vagrantcloud.com/search.
  config.vm.box = "./packer_virtualbox-iso_virtualbox.box"

  # Disable automatic box update checking. If you disable this, then
  # boxes will only be checked for updates when the user runs
  # `vagrant box outdated`. This is not recommended.
  # config.vm.box_check_update = false

  # Create a forwarded port mapping which allows access to a specific port
  # within the machine from a port on the host machine. In the example below,
  # accessing "localhost:8080" will access port 80 on the guest machine.
  # NOTE: This will enable public access to the opened port
  # config.vm.network "forwarded_port", guest: 80, host: 8080

  # Create a forwarded port mapping which allows access to a specific port
  # within the machine from a port on the host machine and only allow access
  # via 127.0.0.1 to disable public access
  # config.vm.network "forwarded_port", guest: 80, host: 8080, host_ip: "127.0.0.1"

  # Create a private network, which allows host-only access to the machine
  # using a specific IP.
  # config.vm.network "private_network", ip: "192.168.33.10"

  # Create a public network, which generally matched to bridged network.
  # Bridged networks make the machine appear as another physical device on
  # your network.
  # config.vm.network "public_network"

  # Share an additional folder to the guest VM. The first argument is
  # the path on the host to the actual folder. The second argument is
  # the path on the guest to mount the folder. And the optional third
  # argument is a set of non-required options.
  # config.vm.synced_folder "../data", "/vagrant_data"

  # Provider-specific configuration so you can fine-tune various
  # backing providers for Vagrant. These expose provider-specific options.
  # Example for VirtualBox:
  #
  # config.vm.provider "virtualbox" do |vb|
  #   # Display the VirtualBox GUI when booting the machine
  #   vb.gui = true
  #
  #   # Customize the amount of memory on the VM:
  #   vb.memory = "1024"
  # end
  #
  # View the documentation for the provider you are using for more
  # information on available options.

  # Enable provisioning with a shell script. Additional provisioners such as
  # Puppet, Chef, Ansible, Salt, and Docker are also available. Please see the
  # documentation for more information about their specific syntax and use.
  # config.vm.provision "shell", inline: <<-SHELL
  #   apt-get update
  #   apt-get install -y apache2
  # SHELL
end