From 66a78afe5bdd04b7247239e3cd0772ef45a08f24 Mon Sep 17 00:00:00 2001
From: Christian Rebischke <Chris.Rebischke@posteo.de>
Date: Mon, 7 Aug 2017 20:40:54 +0200
Subject: making the zero write optional

---
 provision/write_zeroes.sh | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 provision/write_zeroes.sh

(limited to 'provision/write_zeroes.sh')

diff --git a/provision/write_zeroes.sh b/provision/write_zeroes.sh
new file mode 100644
index 0000000..a7fac3e
--- /dev/null
+++ b/provision/write_zeroes.sh
@@ -0,0 +1,10 @@
+#/bin/bash
+
+set -e
+set -x
+
+# Write zeros to improve virtual disk compaction.
+zerofile=$(/usr/bin/mktemp /zerofile.XXXXX)
+dd if=/dev/zero of="$zerofile" bs=1M || true
+rm -f "$zerofile"
+sync
-- 
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