# -*- mode: ruby -*-
# vi: set ft=ruby :

Vagrant.configure(2) do |config|

  # Pick the right distro and bootstrap, default is ubuntu1604
  distro = ( ENV['SPDK_VAGRANT_DISTRO'] || "ubuntu16")
  case distro
  when "ubuntu16"
    # See: https://app.vagrantup.com/puppetlabs/boxes/ubuntu-16.04-64-nocm
    config.vm.box = "puppetlabs/ubuntu-16.04-64-nocm"
    config.vm.box_version = "1.0.0"
  when "ubuntu18"
    # See: https://app.vagrantup.com/bento/boxes/ubuntu-18.04
    config.vm.box = "bento/ubuntu-18.04"
    config.vm.box_version = "201808.24.0"
  when "fedora31"
    # See: https://app.vagrantup.com/generic/boxes/fedora31
    config.vm.box = "generic/fedora31"
    config.vm.box_version = "2.0.6"
  else
    "Invalid argument #{distro}"
    abort("Invalid argument!")
  end
  config.vm.box_check_update = false

  # vagrant-cachier caches apt/yum etc to speed subsequent
  # vagrant up
  # to enable, run
  # vagrant plugin install vagrant-cachier
  #
  if Vagrant.has_plugin?("vagrant-cachier")
    config.cache.scope = :box
  end

  # use http proxy if avaiable
  if ENV['http_proxy'] && Vagrant.has_plugin?("vagrant-proxyconf")
   config.proxy.http     = ENV['http_proxy']
   config.proxy.https    = ENV['https_proxy']
   config.proxy.no_proxy = "localhost,127.0.0.1"
  end

  vmcpu=(ENV['SPDK_VAGRANT_VMCPU'] || 2)
  vmram=(ENV['SPDK_VAGRANT_VMRAM'] || 4096)
  ssh_key_dir=(ENV['SPDK_VAGRANT_SSH_KEY'])
  spdk_dir=(ENV['SPDK_DIR'] || "none")
  install_deps=(ENV['INSTALL_DEPS'] || "false")

  config.ssh.forward_agent = true
  config.ssh.forward_x11 = true

  # Change root passwd and allow root SSH
  config.vm.provision "shell", inline: 'echo -e "root\nroot" | sudo passwd root'
  config.vm.provision "shell", inline: 'sudo sh -c "echo \"PermitRootLogin yes\" >> /etc/ssh/sshd_config"'

  # Use previously generated SSH keys for setting up a key pair
  $ssh_key_gen_script = <<-SCRIPT
  sudo mkdir -p /root/.ssh
  cat /vagrant/ssh_keys/spdk_vhost_id_rsa.pub > /root/.ssh/authorized_keys
  sudo chmod 644 /root/.ssh/authorized_keys
  SCRIPT
  config.vm.provision "shell", inline: $ssh_key_gen_script

  # Install needed deps
  $apt_script = <<-SCRIPT
  sudo apt -y update
  sudo DEBIAN_FRONTEND=noninteractive apt -y -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold" upgrade
  sudo apt -y install -y fio sg3-utils bc
  SCRIPT

  $dnf_script = <<-SCRIPT
  sudo dnf -y update
  sudo dnf -y install fio sg3_utils bc
  SCRIPT

  $install_script = case distro
    when "ubuntu16" then $apt_script
    when "ubuntu18" then $apt_script
    when "fedora31" then $dnf_script
    else abort("#{distro} distribution is not supported yet")
  end

  config.vm.provision "shell", inline: $install_script

  # Modify GRUB options
  # console=ttyS0 earlyprintk=ttyS0 - reroute output to serial dev, so that QEMU can write output to file
  # scsi_mod.use_blk_mq=1 - for multiqueue use
  # net.ifnames=0 biosdevname=0 - do not rename NICs on boot. That way we ensure that addded NIC is always eth0.
  #     Reason for these options is that NIC can have different udev name during provisioning with Vagrant
  #     and then some other name while running SPDK tests which use Qemu without any hypervisor like vbox or libvirt
  #     so no corresponding configuration for this NIC name will be present in /etc.
  config.vm.provision "shell", inline: 'sudo sed -ir s#GRUB_CMDLINE_LINUX=#GRUB_CMDLINE_LINUX=\"console=ttyS0\ earlyprintk=ttyS0\ scsi_mod.use_blk_mq=1\ net.ifnames=0\ biosdevname=0\"#g /etc/default/grub'
  config.vm.provision "shell", inline: 'sudo sed -ir s#\"\"#\ #g /etc/default/grub'

  update_grub_command = case distro
    when "ubuntu16" then 'sudo update-grub'
    when "ubuntu18" then 'sudo update-grub'
    when "fedora31" then 'sudo grub2-mkconfig -o /boot/grub2/grub.cfg ; sudo grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg'
    else abort("#{distro} distribution is not supported yet")
  end
  config.vm.provision "shell", inline: update_grub_command

  if distro.include? "ubuntu"
    # TODO: Next 2 lines break any future ssh communication via "vagrant ssh"
    # I'd be good to check NIC names in ifconfig and then sed them in /etc/network/interfaces to eht0, eht1, and so on
    config.vm.provision "shell", inline: 'sudo sh -c "echo \"auto eth0\" >> /etc/network/interfaces"'
    config.vm.provision "shell", inline: 'sudo sh -c "echo \"iface eth0 inet dhcp\" >> /etc/network/interfaces"'
  end

  if distro.include? "ubuntu18"
    # This is to avoid annoying "Start job is running for wait for network to be configured" 2 minute timeout
    # in case of not-so-perfect NIC and virtual network configuration for the VM
    config.vm.provision "shell", inline: 'systemctl disable systemd-networkd-wait-online.service'
    config.vm.provision "shell", inline: 'systemctl mask systemd-networkd-wait-online.service'
  end

  config.vm.provider "virtualbox" do |vb|
    vb.customize ["modifyvm", :id, "--ioapic", "on"]
    vb.memory = "#{vmram}"
    vb.cpus = "#{vmcpu}"

    #support for the SSE4.x instruction is required in some versions of VB.
    vb.customize ["setextradata", :id, "VBoxInternal/CPUM/SSE4.1", "1"]
    vb.customize ["setextradata", :id, "VBoxInternal/CPUM/SSE4.2", "1"]
  end

  if spdk_dir != "none"
    config.vm.synced_folder "#{spdk_dir}", "/home/vagrant/spdk_repo/spdk", type: "rsync", rsync__auto: false
    if install_deps.include? "true"
      config.vm.provision "shell", inline: 'sudo /home/vagrant/spdk_repo/spdk/scripts/pkgdep.sh --all'
    end
  end

  # Copy in the user's tools if they exists
  if File.directory?(File.expand_path("~/vagrant_tools"))
    config.vm.synced_folder "~/vagrant_tools", "/home/vagrant/tools", type: "rsync", rsync__auto: false
  end
end