Switch VCP to LVM based partitions

This patch switches qcow builder to build VCP with lvm based
partition inside. The disk split to 3 partitions:

  1. 1MB partition needed for GPT
  2. 1Gb boot partition
  3. LVM partition

On LVM the following list of partitions is created:

  * /
  * /home
  * /tmp
  * /var/tmp
  * /var/log
  * /var/log/audit

Important: this will break default growroot cloudinit functionality.
To grow LVM automatically the foolowing data should be added to
cloudinit user-data.cfg

user_data:
  growpart:
    mode: auto
    devices: ['/dev/vda3']
    ignore_growroot_disabled: false
  runcmd:
    - [ 'pvresize', '/dev/vda3' ]

The name of LVM partition might be changed depending on the disk
model specified in VCP, by default is virtio.

Further partitioning size tuning should be done via linux formula.

Related-Prod: PROD-24537

Change-Id: Ie7699a747e73fd75b71ce8232b51fe97a310de64
diff --git a/ubuntu-16.04/template.json b/ubuntu-16.04/template.json
index 1cfc211..10f84df 100644
--- a/ubuntu-16.04/template.json
+++ b/ubuntu-16.04/template.json
@@ -2,7 +2,7 @@
   "variables": {
     "user": "root",
     "password": "ho5uo7Uome5d",
-    "disk_size": "8000",
+    "disk_size": "5000",
     "images_cache": "{{ env `PACKER_IMAGES_CACHE` }}",
     "ubuntu_baseurl": "{{ env `UBUNTU_BASEURL` }}",
     "saltstack_gpg": "{{ env `SALTSTACK_GPG` }}",
@@ -270,35 +270,37 @@
     {
       "type": "qemu",
       "qemuargs": [
-        [ "-m", "1024M" ],
-        [ "-cdrom", "config-drive/cloudata.iso" ],
+        ["-m", "1024M"],
         ["-device", "virtio-net,netdev=user.0"],
         ["-object","rng-random,id=objrng0,filename=/dev/urandom"],
-        ["-device", "virtio-rng-pci,rng=objrng0,id=rng0,bus=pci.0,addr=0x10" ]
+        ["-device", "virtio-rng-pci,rng=objrng0,id=rng0,bus=pci.0,addr=0x10"]
       ],
-      "vm_name": "{{ user `image_name` }}-{{ isotime \"200601021504\"  }}",
-      "output_directory": "images/{{ user `image_name` }}-qemu-{{ isotime \"200601021504\"  }}",
-      "format": "qcow2",
-      "iso_checksum": "c71d27a86a168f28097bc30004b54c1f",
-      "iso_checksum_type": "md5",
-      "iso_url": "http://releases.ubuntu.com/16.04.5/ubuntu-16.04.5-server-amd64.iso",
-      "iso_target_path": "{{ user `images_cache`}}/ubuntu-16.04.5-server-amd64.iso",
-      "disk_image": true,
-      "disk_compression": true,
+      "vm_name": "{{ user `image_name` }}",
+      "output_directory": "images/{{ user `image_name`}}",
       "accelerator": "kvm",
       "disk_size": "{{ user `disk_size`}}",
+      "iso_checksum": "24636fd103a2a43c95659f1c3c63718e",
+      "iso_checksum_type": "md5",
+      "iso_url": "http://releases.ubuntu.com/16.04.5/ubuntu-16.04.5-server-amd64.iso",
+      "iso_target_path": "{{ user `images_cache` }}/ubuntu-16.04.5-server-amd64.iso",
+      "http_directory": "http",
       "headless": true,
-      "ssh_username": "{{ user `user` }}",
-      "ssh_password": "{{ user `password` }}",
-      "ssh_host_port_min": 7000,
-      "ssh_host_port_max": 7050,
-      "shutdown_command": "shutdown -P now",
+      "ssh_username": "{{user `user`}}",
+      "ssh_password": "{{user `password`}}",
+      "shutdown_command": "sync; sudo /sbin/shutdown -hP now",
       "boot_wait": "2s",
-      "ssh_wait_timeout": "360s",
+      "ssh_wait_timeout": "700s",
       "boot_command": [
-        "<wait50ms>",
-        "<esc><wait>",
-        "<enter><wait>",
+        "<enter><wait><f6><esc>",
+        "<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
+        "<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
+        "<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
+        "<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
+        "<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
+        "<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
+        "<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
+        "<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
+        "<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
         "/install/vmlinuz<wait>",
         " auto<wait>",
         " console-setup/ask_detect=false<wait>",