X-Git-Url: https://gerrit.linuxfoundation.org/infra/gitweb?a=blobdiff_plain;f=jenkins-init-scripts%2Fcreate-swap-file.sh;h=8090bce6c7399921e1395d61be3f83171943d659;hb=d1e8579fac0f3a0aeba74f70b27a06ab3fdad54f;hp=cf8d97f109178e4b3fb3f0cc8b44b529df5bc4a1;hpb=d9aedddc8722e75fd24f9c7a9209e96ee5cea507;p=releng%2Fglobal-jjb.git

diff --git a/jenkins-init-scripts/create-swap-file.sh b/jenkins-init-scripts/create-swap-file.sh
index cf8d97f1..8090bce6 100755
--- a/jenkins-init-scripts/create-swap-file.sh
+++ b/jenkins-init-scripts/create-swap-file.sh
@@ -9,7 +9,22 @@
 # http://www.eclipse.org/legal/epl-v10.html
 ##############################################################################
 
-dd if=/dev/zero of=/swap count=1024 bs=1MiB
+# Get the blockCount from the 'SWAP_SIZE' environmental variable
+blockCount=${SWAP_SIZE-''}
+
+# Validate SWAP_SIZE
+# Empty:   Set blockCount 1
+# Zero:    No Swap
+# Integer: Set blockCount
+# Else:    No Swap
+case $blockCount in
+    '')      blockCount=1 ;;
+    [0-9]*)  ;;
+    *)       exit ;;
+esac
+[[ $blockCount == 0 ]] && exit
+
+dd if=/dev/zero of=/swap count="${blockCount}k" bs=1MiB
 chmod 600 /swap
 mkswap /swap
 swapon /swap