From cdf22878d8057e36f28db83c5da908035cdfb49a Mon Sep 17 00:00:00 2001
From: Yuiko Takada <takada-yuiko@mxn.nes.nec.co.jp>
Date: Wed, 13 Jan 2016 15:01:54 +0900
Subject: [PATCH] Check whether agent tarball exists

Currently, when execute devstack/stack.sh,
agent tarball is downloaded every time even if
it exists already.
This patch set
* checks whether kernel/ramdisk exists
and if there are, doesn't down load them.
* checks whether ironic agent kernel/ramdisk exists
and if there are, copy them.

Change-Id: Ic546ba8fc0cc14dc7cf13433e09db35a0854d115
Closes-Bug: #1533491
---
 devstack/plugin.sh | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/devstack/plugin.sh b/devstack/plugin.sh
index f4991a3d5..568aa0d65 100644
--- a/devstack/plugin.sh
+++ b/devstack/plugin.sh
@@ -116,8 +116,15 @@ function prepare_tftp {
         else
             # download the agent image tarball
             IRONIC_INSPECTOR_KERNEL_PATH="$IRONIC_INSPECTOR_IMAGE_PATH.kernel"
-            wget "$IRONIC_AGENT_KERNEL_URL" -O $IRONIC_INSPECTOR_KERNEL_PATH
-            wget "$IRONIC_AGENT_RAMDISK_URL" -O $IRONIC_INSPECTOR_INITRAMFS_PATH
+            if [ ! -e "$IRONIC_INSPECTOR_KERNEL_PATH" -o ! -e "$IRONIC_INSPECTOR_INITRAMFS_PATH" ]; then
+                if [ -e "$IRONIC_DEPLOY_KERNEL_PATH" -a -e "$IRONIC_DEPLOY_RAMDISK_PATH" ]; then
+                    cp $IRONIC_DEPLOY_KERNEL_PATH $IRONIC_INSPECTOR_KERNEL_PATH
+                    cp $IRONIC_DEPLOY_RAMDISK_PATH $IRONIC_INSPECTOR_INITRAMFS_PATH
+                else
+                    wget "$IRONIC_AGENT_KERNEL_URL" -O $IRONIC_INSPECTOR_KERNEL_PATH
+                    wget "$IRONIC_AGENT_RAMDISK_URL" -O $IRONIC_INSPECTOR_INITRAMFS_PATH
+                fi
+            fi
         fi
     else
         IRONIC_INSPECTOR_KERNEL_PATH="$IRONIC_INSPECTOR_IMAGE_PATH.kernel"