# -*- mode: ruby -*-
# -*- coding: utf-8 -*-

host_ip = "192.168.121.1"
operator_key = "${HOME}/.ssh/onap-key"
vagrant_user = "vagrant"
vagrant_password = "vagrant"
synced_folder_main = "/vagrant"
synced_folder_config = "#{synced_folder_main}/config"
synced_folder_tools_config = "#{synced_folder_main}/tools/config"
os_config = "#{synced_folder_config}/local.conf"
os_env = "#{synced_folder_config}/dot_env"
cluster_yml = "cluster.yml"
apt_prefs_dir = "/etc/apt/apt.conf.d"
apt_prefs = "95silent-approval"

vm_memory = 1 * 1024
vm_memory_os = 4 * 1024
vm_memory_onap = 20 * 1024
vm_cpu = 1
vm_cpus = 4
vm_box = "generic/ubuntu1804"
vm_disk = 32
vm_disk_onap = 64

operation = {
  name: 'operator',
  hostname: 'operator',
  ip: '172.17.4.254',
  cpus: vm_cpu,
  memory: vm_memory,
  disk: vm_disk
}
devstack = {
  name: 'devstack',
  hostname: 'devstack',
  ip: '172.17.4.200',
  cpus: vm_cpu,
  memory: vm_memory_os,
  disk: vm_disk
}
control = {
  name: 'control',
  hostname: 'control',
  ip: '172.17.4.100',
  cpus: vm_cpu,
  memory: vm_memory,
  disk: vm_disk
}
worker = {
  name: 'worker',
  hostname: 'worker',
  ip: '172.17.4.101',
  cpus: vm_cpus,
  memory: vm_memory_onap,
  disk: vm_disk_onap
}

cluster = [] << control << worker
all = cluster.dup << operation << devstack

operation_post_msg = "Run: \"vagrant provision #{operation[:name]} --provision-with=rke_up,setup_kubectl,setup_helm_cluster,setup_helm_repo,deploy_onap\" to complete ONAP deployment"

$replace_dns = <<-SCRIPT
  HOST_IP="$1"
  rm -f /etc/resolv.conf # drop its dynamic management by systemd-resolved
  echo nameserver "$HOST_IP" | tee /etc/resolv.conf
SCRIPT

$enable_ipv6 = <<-SCRIPT
  sed -i'' 's/net.ipv6.conf.all.disable_ipv6.*$/net.ipv6.conf.all.disable_ipv6 = 0/' /etc/sysctl.conf
  sysctl -p
SCRIPT

$setup_devstack = <<-SCRIPT
  CONFIG="$1"
  git clone https://opendev.org/openstack/devstack
  cd devstack
  cp "$CONFIG" .
  ./stack.sh
SCRIPT

$add_to_docker_group = <<-SCRIPT
  USER="$1"
  echo "Adding ${USER} to 'docker' group"
  usermod -aG docker "$USER"
SCRIPT

$setup_debconf = <<-SCRIPT
  echo "Setting debconf frontend to noninteractive"
  sed -i'.orig' '/^Config:/a Frontend: noninteractive' /etc/debconf.conf
SCRIPT

$install_sshpass = <<-SCRIPT
  apt-get update
  echo "Installing 'sshpass'"
  apt-get install sshpass
SCRIPT

$install_make = <<-SCRIPT
  apt-get update
  echo "Installing 'make'"
  apt-get install make
SCRIPT

$resize_disk = <<-SCRIPT
  DEV=${1:-sda}
  PART=${2:-3}
  echo ", +" | sfdisk -N "$PART" "/dev/$DEV" --no-reread
  partprobe
  resize2fs "/dev/${DEV}${PART}"
SCRIPT

$generate_key = <<-SCRIPT
  KEY_FILE="$1"
  echo "Generating SSH key (${KEY_FILE})"
  ssh-keygen -q -b 4096 -t rsa -f "$KEY_FILE" -N ""
SCRIPT

$deploy_key = <<-SCRIPT
  KEY="$1"
  USER="$2"
  PASS="$PASSWORD"
  IPS="$3"
  echo "Deploying ${KEY} for ${USER}"
  for ip in $IPS; do
    echo "on ${ip}"
    sshpass -p "$PASS" ssh-copy-id -o StrictHostKeyChecking=no -i "$KEY" "${USER}@${ip}"
  done
SCRIPT

$link_dotfiles = <<-SCRIPT
  SYNC_DIR="$1"
  for rc in ${SYNC_DIR}/dot_*; do
    src="$rc"
    dst="${HOME}/.${rc##*dot_}"
    echo "Symlinking ${src} to ${dst}"
    ln -sf "$src" "$dst"
  done
SCRIPT

$link_file = <<-SCRIPT
  SYNC_DIR="$1"
  FILE="$2"
  src="${SYNC_DIR}/${FILE}"
  dst="$3"
  echo "Symlinking ${src} to ${dst}"
  ln -sf "$src" "$dst"
SCRIPT

$rke_up = "rke up"
$rke_down = "rke remove --force || true" # best effort

$get_oom = <<-SCRIPT
  BRANCH="${1:-5.0.1-ONAP}"
  REPO="${2:-https://git.onap.org/oom}"
  git clone -b "$BRANCH" "$REPO" --recurse-submodules
SCRIPT

$get_helm_plugins = "mkdir -p ${HOME}/.helm && cp -R ${HOME}/oom/kubernetes/helm/plugins/ ${HOME}/.helm"

$setup_helm_cluster = <<-SCRIPT
  export KUBECONFIG="${HOME}/.kube/config.onap"
  kubectl config use-context onap
  kubectl -n kube-system create serviceaccount tiller
  kubectl create clusterrolebinding tiller --clusterrole=cluster-admin --serviceaccount=kube-system:tiller
  helm init --service-account tiller
  kubectl -n kube-system rollout status deploy/tiller-deploy
SCRIPT

# FIXME: replace sleep command with helm repo readiness probe
$setup_helm_repo = <<-SCRIPT
  helm serve &
  sleep 3
  helm repo add local http://127.0.0.1:8879
  make -C ${HOME}/oom/kubernetes all
  make -C ${HOME}/oom/kubernetes onap
SCRIPT

$deploy_onap = <<-SCRIPT
  OVERRIDE="${1:-${HOME}/oom/kubernetes/onap/resources/environments/minimal-onap.yaml}"

  ENV="${2:-#{os_env}}"
  export $(cat "$ENV" | xargs)

  encrypt () {
    KEY="${HOME}/oom/kubernetes/so/resources/config/mso/encryption.key"
    echo -n "$1" \
    | openssl aes-128-ecb -e -K `cat "$KEY"` -nosalt \
    | xxd -c 256 -p
  }

  export OPENSTACK_ENCRYPTED_PASSWORD="$(encrypt $OPENSTACK_PASSWORD)"

  export KUBECONFIG="${HOME}/.kube/config.onap"

  helm deploy minimal local/onap --namespace onap -f "$OVERRIDE" --verbose --timeout 900
SCRIPT

Vagrant.configure('2') do |config|
  all.each do |machine|
    config.vm.define machine[:name] do |config|
      config.vm.box = vm_box
      config.vm.hostname = machine[:hostname]

      config.vm.provider :virtualbox do |v|
        v.name = machine[:name]
        v.memory = machine[:memory]
        v.cpus = machine[:cpus]
      end

      config.vm.provider :libvirt do |v|
        v.memory = machine[:memory]
        v.cpus = machine[:cpus]
        v.machine_virtual_size = machine[:disk] # set at VM creation
      end

      config.vm.network :private_network, ip: machine[:ip]
      config.vm.provision "replace_dns", type: :shell, run: "always", inline: $replace_dns, args: host_ip

      if machine[:name] == 'devstack'
        config.vm.synced_folder ".", synced_folder_main, type: "rsync", rsync__exclude: "Vagrantfile"

        config.vm.provision "enable_ipv6", type: :shell, run: "always", inline: $enable_ipv6
        config.vm.provision "setup_devstack", type: :shell, privileged: false, inline: $setup_devstack, args: os_config
      end

      if machine[:name] == 'control'
        config.vm.provision "customize_control", type: :shell, path: "tools/imported/openstack-k8s-controlnode.sh"
        config.vm.provision "fix_groups_control", type: :shell, inline: $add_to_docker_group, args: vagrant_user
      end

      if machine[:name] == 'worker'
        config.vm.provision "customize_worker", type: :shell, path: "tools/imported/openstack-k8s-workernode.sh"
        config.vm.provision "fix_group_worker", type: :shell, inline: $add_to_docker_group, args: vagrant_user
        config.vm.provision "resize_disk", type: :shell, inline: $resize_disk
      end

      if machine[:name] == 'operator'
        config.vm.synced_folder ".", synced_folder_main, type: "rsync", rsync__exclude: ["Vagrantfile", "operator"]
        config.vm.synced_folder "~/.ssh", "/home/#{vagrant_user}/.ssh", type: "rsync", rsync__exclude: "authorized_keys"
        config.vm.synced_folder "./operator", "/home/#{vagrant_user}", type: "sshfs", reverse: true, sshfs_opts_append: "-o nonempty"

        config.vm.provision "setup_debconf", type: :shell, inline: $setup_debconf
        config.vm.provision "link_apt_prefs", type: :shell, run: "always" do |s|
          s.inline = $link_file
          s.args = [synced_folder_tools_config, apt_prefs, apt_prefs_dir]
        end
        config.vm.provision "link_dotfiles_root", type: :shell, run: "always" do |s|
          s.inline = $link_dotfiles
          s.args = synced_folder_tools_config
        end
        config.vm.provision "link_dotfiles_user", type: :shell, run: "always" do |s|
          s.privileged = false
          s.inline = $link_dotfiles
          s.args = synced_folder_tools_config
        end

        config.vm.provision "install_sshpass", type: :shell, inline: $install_sshpass
        config.vm.provision "generate_key", type: :shell, privileged: false, inline: $generate_key, args: operator_key

        ips = ""
        cluster.each { |node| ips << node[:ip] << " " }
        config.vm.provision "deploy_key", type: :shell do |s|
          s.privileged = false
          s.inline = $deploy_key
          s.args = [operator_key, vagrant_user, ips]
          s.env = {'PASSWORD': vagrant_password}
        end

        config.vm.provision "get_rke", type: :shell, path: "tools/get_rke.sh"
        config.vm.provision "link_cluster_yml", type: :shell, run: "always" do |s|
          s.privileged = false
          s.inline = $link_file
          s.args = [synced_folder_config, cluster_yml, "$HOME"]
        end

        config.vm.post_up_message = operation_post_msg
        config.vm.provision "rke_up", type: :shell, run: "never", privileged: false, inline: $rke_up
        config.trigger.before :destroy do |trigger|
          trigger.warn = "Removing cluster"
          trigger.run_remote = {privileged: false, inline: $rke_down}
        end

        config.vm.provision "get_kubectl", type: :shell, path: "tools/get_kubectl.sh"
        config.vm.provision "setup_kubectl", type: :shell, run: "never" do |s|
          s.privileged = false
          s.path = "tools/setup_kubectl.sh"
        end
        config.vm.provision "get_helm", type: :shell, path: "tools/get_helm.sh"
        config.vm.provision "get_oom", type: :shell do |s|
          s.privileged = false
          s.inline = $get_oom
        end
        config.vm.provision "get_helm_plugins", type: :shell, privileged: false, inline: $get_helm_plugins
        config.vm.provision "install_make", type: :shell, inline: $install_make
        config.vm.provision "setup_helm_cluster", type: :shell, run: "never", privileged: false, inline: $setup_helm_cluster
        config.vm.provision "setup_helm_repo", type: :shell, run: "never", privileged: false, inline: $setup_helm_repo
        config.vm.provision "deploy_onap", type: :shell, run: "never" do |s|
          s.privileged = false
          s.inline = $deploy_onap
        end
      end
    end
  end
end