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

require 'open3'
def get_box_type(distro, force_distro)
  spdk_distro = 'spdk/' + distro
  localboxes, stderr, status = Open3.capture3("vagrant box list")
  return spdk_distro if localboxes.include?(spdk_distro)

  distro_to_type = {
    'centos7'    => 'centos/7',
    'centos8'    => 'centos/8',
    'ubuntu1604' => 'peru/ubuntu-16.04-server-amd64',
    'ubuntu1804' => 'peru/ubuntu-18.04-server-amd64',
    'ubuntu2004' => 'peru/ubuntu-20.04-server-amd64',
    'fedora32'   => 'generic/fedora32',
    'fedora33'   => 'generic/fedora33',
    'fedora34'   => 'fedora/34-cloud-base',
    'arch'       => 'generic/arch',
    'freebsd12'  => 'generic/freebsd12',
  }
  abort("Invalid argument! #{distro}") unless distro_to_type.key?(distro) || force_distro

  return distro_to_type[distro] ? distro_to_type[distro] : distro
end

def setup_proxy(config,distro)
  return unless ENV['http_proxy']

  if 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

  # Proxyconf does not seem to support FreeBSD boxes or at least it's
  # docs do not mention that. Set up proxy configuration manually.
  if distro.include?("freebsd")
    $freebsd_proxy = <<-SCRIPT
    sudo -s
    echo "export http_proxy=#{ENV['http_proxy']}" >> /etc/profile
    echo "export https_proxy=#{ENV['http_proxy']}" >> /etc/profile
    echo "pkg_env: {http_proxy: #{ENV['http_proxy']}}" > /usr/local/etc/pkg.conf
    chown root:wheel /usr/local/etc/pkg.conf
    chmod 644 /usr/local/etc/pkg.conf
    SCRIPT
    config.vm.provision "shell", inline: $freebsd_proxy
  end
end

def copy_gitconfig(config)
  src_path = '~/.gitconfig'
  return unless File.file?(File.expand_path(src_path))

  config.vm.provision  "file", source: src_path, destination: ".gitconfig"
end

def copy_tsocks(config)
  tsocks_file = 'tsocks.conf'
  tsocks_file_path = '/etc/' + tsocks_file

  return unless File.file?(tsocks_file_path)

  $tsocks_copy_cmd = <<-SCRIPT
  sudo -s
  mv -f "#{tsocks_file}" "#{tsocks_file_path}"
  chown root "#{tsocks_file_path}"
  chmod 644 "#{tsocks_file_path}"
  SCRIPT

  config.vm.provision  "file", source: tsocks_file_path, destination: tsocks_file
  config.vm.provision "shell", inline: $tsocks_copy_cmd
end

def copy_vagrant_tools(config,files_sync_backend)
  src_path = '~/vagrant_tools'
  return unless File.directory?(File.expand_path(src_path))

  config.vm.synced_folder src_path, "/home/vagrant/tools", files_sync_backend
end

def copy_spdk_dir(config, files_sync_backend)
  return unless ENV['COPY_SPDK_DIR'] == "1"
  return unless ENV['SPDK_DIR']

  config.vm.synced_folder ENV['SPDK_DIR'], '/home/vagrant/spdk_repo/spdk', files_sync_backend
end

def copy_spdk_artifacts(config, plugins_sync_backend)
  return unless ENV['COPY_SPDK_ARTIFACTS'] == "1"

  vagrantfile_dir=(ENV['VAGRANTFILE_DIR'] || "none")
  config.vm.synced_folder "#{vagrantfile_dir}/output", "/home/vagrant/spdk_repo/output", plugins_sync_backend
end

def make_spdk_local_copy_of_nfs(config,distro)
  user_group = 'vagrant:vagrant'

  spdk_path = '/home/vagrant/spdk_repo/spdk'
  spdk_tmp_path = '/tmp/spdk'
  $spdk_repo_cmd = <<-SCRIPT
  sudo -s
  cp -R '#{spdk_path}' '#{spdk_tmp_path}'
  umount '#{spdk_path}' && rm -rf '#{spdk_path}'
  mv '#{spdk_tmp_path}' '#{spdk_path}'
  chown -R #{user_group} '#{spdk_path}'
  SCRIPT

  config.vm.provision "shell", inline: $spdk_repo_cmd
end

def get_nvme_disk(disk, index)
  if ENV['NVME_FILE']
    nvme_file = ENV['NVME_FILE'].split(',')
    nvme_disk = nvme_file[index]
  else
    nvme_disk = '/var/lib/libvirt/images/nvme_disk.img'
  end

  unless File.exist? (nvme_disk)
    puts 'If run with libvirt provider please execute create_nvme_img.sh'
  end

  return nvme_disk
end

def setup_nvme_disk(libvirt, disk, index)
  nvme_disk_id = disk + '-' + index.to_s
  nvme_disk = get_nvme_disk(disk, index)

  nvme_namespaces=(ENV['NVME_DISKS_NAMESPACES'] || "").split(',')
  nvme_cmbs=(ENV['NVME_CMB'] || "").split(',')
  nvme_pmrs=(ENV['NVME_PMR'] || "").split(',')

  libvirt.qemuargs :value => "-drive"
  libvirt.qemuargs :value => "format=raw,file=#{nvme_disk},if=none,id=#{nvme_disk_id}"
  libvirt.qemuargs :value => "-device"
  nvme_drive = "nvme,drive=#{nvme_disk_id},serial=1234#{index}"
  if !nvme_namespaces[index].nil? && nvme_namespaces[index] != "1"
    nvme_drive << ",namespaces=#{nvme_namespaces[index]}"
  end

  pmr_cmdline = ""

  if !nvme_cmbs[index].nil? && nvme_cmbs[index] == "true"
    # Fix the size of the buffer to 128M
    nvme_drive << ",cmb_size_mb=128"
  end
  if !nvme_pmrs[index].nil?
    pmr_path, pmr_size = nvme_pmrs[index].split(':')
    if !File.exist?(pmr_path)
      abort("#{pmr_path} does not exist, aborting")
    end
    if pmr_size.nil?
      pmr_size = "16M"
    end
    nvme_drive << ",pmrdev=pmr#{index}"
    pmr_cmdline = "memory-backend-file,id=pmr#{index},share=on,mem-path=#{pmr_path},size=#{pmr_size}"
  end
  libvirt.qemuargs :value => nvme_drive
  if pmr_cmdline != ""
    libvirt.qemuargs :value => "-object"
    libvirt.qemuargs :value => pmr_cmdline
  end
end

def setup_ssh(config)
  config.ssh.forward_agent = true
  config.ssh.forward_x11 = true
  if ENV['VAGRANT_PASSWORD_AUTH'] == "1"
    config.ssh.username = "vagrant"
    config.ssh.password = "vagrant"
    config.ssh.private_key_path = nil
  end
end

def deploy_test_vm(config, distro, plugins_sync_backend)
  return unless ENV['DEPLOY_TEST_VM'] == "1"
  return unless ENV['COPY_SPDK_DIR'] == "1"
  return unless ENV['SPDK_DIR']

  # use http proxy if avaiable
  setup_proxy(config, distro)

  # Copy the tsocks configuration file for use when installing some spdk test pool dependencies
  copy_tsocks(config)

  # freebsd boxes in order to have spdk sources synced from
  # host properly will use NFS with "ro" option enabled to prevent changes
  # on host filesystem.
  # To make sources usable in the guest VM we need to unmount them and use
  # local copy.
  make_spdk_local_copy_of_nfs(config,distro) if plugins_sync_backend[:type] == :nfs

  config.vm.provision "shell" do |setup|
    setup.inline = "/home/vagrant/spdk_repo/spdk/test/common/config/vm_setup.sh"
    setup.privileged = false
    setup.args = ["-u", "-i"]
  end
end

def setup_virtualbox(config, vmcpu, vmram)
  config.vm.provider "virtualbox" do |vb|
    vb.customize ["modifyvm", :id, "--ioapic", "on"]
    vb.memory = vmram
    vb.cpus = vmcpu

    nvme_disk=(ENV['NVME_FILE'] || "nvme_disk.img")
    unless File.exist? (nvme_disk)
      vb.customize ["createhd", "--filename", nvme_disk, "--variant", "Fixed", "--size", "1024"]
      vb.customize ["storagectl", :id, "--name", "nvme", "--add", "pcie", "--controller", "NVMe", "--portcount", "1", "--bootable", "off"]
      vb.customize ["storageattach", :id, "--storagectl", "nvme", "--type", "hdd", "--medium", nvme_disk, "--port", "0"]
    end

    #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
end

def setup_libvirt(config, vmcpu, vmram, distro)
  emulated_nvme_types=(ENV['NVME_DISKS_TYPE'] || "nvme").split(',')

  config.vm.provider "libvirt" do |libvirt, override|
    libvirt.random_hostname = "1"
    libvirt.driver = "kvm"
    libvirt.graphics_type = "vnc"
    libvirt.memory = vmram
    libvirt.cpus = vmcpu
    libvirt.video_type = "cirrus"

    if (distro.include?("freebsd"))
      # generic/freebsd boxes need to be explicitly run with SCSI bus,
      # otherwise boot process fails on mounting the disk
      libvirt.disk_bus = "scsi"
    elsif (distro.include?("arch"))
      # Run generic/arch boxes explicitly with IDE bus,
      # otherwise boot process fails on mounting the disk
      libvirt.disk_bus = "ide"
    else
      libvirt.disk_bus = "virtio"
    end

    if ENV['SPDK_QEMU_EMULATOR']
      libvirt.emulator_path = ENV['SPDK_QEMU_EMULATOR']
      libvirt.machine_type = "pc"
    end

    # we put nvme_disk inside default pool to eliminate libvirt/SELinux Permissions Problems
    # and to be able to run vagrant from user $HOME directory

    # Loop to create all emulated disks set
    emulated_nvme_types.each_with_index { |disk, index|
      if disk == "nvme"
        setup_nvme_disk(libvirt, disk, index)
      end
    }

    # Add network interface for openstack tests
    if ENV['SPDK_OPENSTACK_NETWORK'] == "1"
      libvirt.qemuargs :value => "-device"
      libvirt.qemuargs :value => "virtio-net,netdev=openstack.0"
      libvirt.qemuargs :value => "-netdev"
      libvirt.qemuargs :value => "user,id=openstack.0"
    end

    if ENV['VAGRANT_HUGE_MEM'] == "1"
      libvirt.memorybacking :hugepages
    end

    # Optional field if we want use other storage pools than default
    # libvirt.storage_pool_name = "vm"
  end
end

#################################################################################################
# Pick the right distro and bootstrap, default is fedora33
distro = (ENV['SPDK_VAGRANT_DISTRO'] || "fedora33")
provider = (ENV['SPDK_VAGRANT_PROVIDER'] || "virtualbox")

# Get all variables for creating vm
vmcpu = (ENV['SPDK_VAGRANT_VMCPU'] || 2)
vmram = (ENV['SPDK_VAGRANT_VMRAM'] || 4096)

# generic/freebsd boxes do not work properly with vagrant-proxyconf and
# have issues installing rsync and sshfs for syncing files. NFS is
# pre-installed, so use it.
# generic/fedora boxes on the other hand have problems running NFS
# service so use sshfs+rsync combo instead.
force_distro = ENV['FORCE_DISTRO'] == "true" ? true : false

distro_to_use = get_box_type(distro, force_distro)
if (distro_to_use.include?("generic/freebsd"))
  files_sync_backend = {type: :nfs, nfs_udp: false,  mount_options: ['ro']}
  plugins_sync_backend = {type: :nfs, nfs_udp: false}
else
  # Remove --copy-links from default rsync cmdline since we do want to sync
  # actual symlinks as well. Also, since copy is made between host and its
  # local VM we don't need to worry about saturating the local link so skip
  # the compression to speed up the whole transfer.
  files_sync_backend = {type: "rsync", rsync__auto: false, rsync__args: ["--archive", "--verbose", "--delete"]}
  plugins_sync_backend = {type: :sshfs}
end

Vagrant.configure(2) do |config|
  config.vm.box = distro_to_use
  config.vm.box_check_update = false
  config.vm.synced_folder '.', '/vagrant', disabled: true
  if ENV['VAGRANT_BOX_VERSION']
    config.vm.box_version = ENV['VAGRANT_BOX_VERSION']
  end

  # Copy in the .gitconfig if it exists
  copy_gitconfig(config)

  # Copy in the user's tools if they exists
  copy_vagrant_tools(config,files_sync_backend)

  # rsync the spdk directory if provision hasn't happened yet
  # Warning: rsync does not work with freebsd boxes, so this step is disabled
  copy_spdk_dir(config, files_sync_backend)

  # rsync artifacts from build
  copy_spdk_artifacts(config, plugins_sync_backend)

  # Setup SSH
  setup_ssh(config)

  # Virtualbox configuration
  setup_virtualbox(config,vmcpu,vmram)

  # This setup was Tested on Fedora 27
  # libvirt configuration need modern Qemu(tested on 2.10) & vagrant-libvirt in version 0.0.39+
  # There are few limitation for SElinux - The file added outside libvirt must have proper SE ACL policy or setenforce 0
  setup_libvirt(config,vmcpu,vmram,distro)

  # provision the vm with all of the necessary spdk dependencies for running the autorun.sh tests
  deploy_test_vm(config, distro, plugins_sync_backend)
end