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#!/bin/sh
set -e
mkdir -p /etc/writable
# cloud-init needs to be able to modify hostname and has the ability to
# set the other two.
for f in timezone localtime hostname; do
if [ -e /etc/$f ]; then
echo "I: Moving /etc/$f to /etc/writable/"
mv /etc/$f /etc/writable/$f
fi
echo "I: Linking /etc/$f to /etc/writable/"
ln -s writable/$f /etc/$f
done