Adding self installation command for fabrica

.packer/provisioning/alpine/cleanup.sh

@@ -0,0 +1,29 @@
+#!/bin/sh
+
+set -xe
+
+source /root/provisioning/common.sh
+
+removePkg()
+{
+   apk del --no-cache $1
+   return $?
+}
+
+cleanProv()
+{
+   rm -rf /root/provisioning
+   return $?
+}
+
+for pkg in ${PKG_TO_REMOVE}
+do
+   removePkg ${pkg}
+   if [ $? -ne 0 ]
+   then
+      echo "Warning : removing package ${pkg} failed with code $?"
+   fi
+done
+
+cleanProv
+exit $?