From 034189ec041aca5740c1689f3034f9b2e9d4418e Mon Sep 17 00:00:00 2001
From: Sean Dague <sean@dague.net>
Date: Thu, 2 Oct 2014 19:04:17 -0400
Subject: [PATCH] create partition for lvm volume

to make cinder use a bit more optimized, build us a 24G lvm volume in
our ephemeral disk instead of lvm on loopback. This may impact
reliability for good.

Change-Id: I9f634dbd6e6e1eb653fb5e40be18db0886abfa8e
---
 functions.sh | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/functions.sh b/functions.sh
index 5ca78c87..0c74491c 100644
--- a/functions.sh
+++ b/functions.sh
@@ -218,17 +218,22 @@ function fix_disk_layout {
             DEV='/dev/xvde'
         fi
         if [ -n "$DEV" ]; then
+            local swap=${DEV}1
+            local lvmvol=${DEV}2
+            local optdev=${DEV}3
             sudo umount ${DEV}
             sudo parted ${DEV} --script -- mklabel msdos
             sudo parted ${DEV} --script -- mkpart primary linux-swap 1 8192
-            sudo parted ${DEV} --script -- mkpart primary ext2 8192 -1
-            sudo mkswap ${DEV}1
-            sudo mkfs.ext4 ${DEV}2
-            sudo swapon ${DEV}1
-            sudo mount ${DEV}2 /mnt
+            sudo parted ${DEV} --script -- mkpart primary ext2 8192 32768
+            sudo parted ${DEV} --script -- mkpart primary ext2 32768 -1
+            sudo mkswap $swap
+            sudo vgcreate stack-volumes-lvmdriver-1 $lvmvol
+            sudo mkfs.ext4 $optdev
+            sudo swapon $swap
+            sudo mount $optdev /mnt
             sudo find /opt/ -mindepth 1 -maxdepth 1 -exec mv {} /mnt/ \;
             sudo umount /mnt
-            sudo mount ${DEV}2 /opt
+            sudo mount $optdev /opt
         fi
     fi
 }