@@ -25,6 +25,13 @@ echo "deb http://pkg.jenkins-ci.org/debian binary/" > /etc/apt/sources.list.d/je

 wget -q -O - http://pkg.jenkins-ci.org/debian/jenkins-ci.org.key | sudo apt-key add -

 apt-get update

+

+# Clean out old jenkins - useful if you are having issues upgrading

+CLEAN_JENKINS=${CLEAN_JENKINS:-no}

+if [ "$CLEAN_JENKINS" = "yes" ] then;

+    apt-get remove jenkins jenkins-common

+fi

+

 # Install software

 DEPS="jenkins cloud-utils"

 apt-get install -y --force-yes $DEPS