From 8cda43a68aaebfe6a0ce9a55411bf4a225de5322 Mon Sep 17 00:00:00 2001
From: niusmallnan <zhangzhibo521@gmail.com>
Date: Mon, 5 Feb 2018 17:43:39 +0800
Subject: [PATCH] Reduce the memory consumption at startup (#2247)

Offline image is automatically loaded when the system boots.
When the system memory is not large enough (such as 1G), will lead to
kernel panic.
---
 Dockerfile.dapper  | 3 ++-
 scripts/tar-images | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/Dockerfile.dapper b/Dockerfile.dapper
index 5feb4209..7b063dea 100644
--- a/Dockerfile.dapper
+++ b/Dockerfile.dapper
@@ -35,7 +35,8 @@ RUN echo "Acquire::http { Proxy \"$APTPROXY\"; };" >> /etc/apt/apt.conf.d/01prox
         vim \
         wget \
         xorriso \
-	telnet
+        xz-utils \
+        telnet
 
 ########## Dapper Configuration #####################
 
diff --git a/scripts/tar-images b/scripts/tar-images
index b0f84d2e..bddefbfb 100755
--- a/scripts/tar-images
+++ b/scripts/tar-images
@@ -13,5 +13,5 @@ for i in $IMAGES; do
 done
 
 echo "tar-images: docker save ${IMAGES} > build/images.tar"
-docker save ${IMAGES} > build/images.tar
+docker save ${IMAGES} | xz > build/images.tar
 echo "tar-images: DONE"