diskimage-builder/elements/simple-init/cleanup.d/90-remove-ssh-host-keys
Clark Boylan 677619b1cc Remove ssh host keys when using simple init
In order for glean to operate properly and regenerate ssh host keys it
needs to start on a host without any ssh host keys. We hadn't been doing
this meaning that new host keys were not generated on images using
simple-init. Fix this by having simple-init delete any host keys found
in /etc/ssh late in the build process.

This should force glean/sshd to generate new host keys on first boot
depending on the distro.

Change-Id: Ic917387d92febf21c2cc37dfc1fa83fcf0c8e469
2016-04-06 05:47:37 +00:00

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#!/bin/bash
if [ ${DIB_DEBUG_TRACE:-0} -gt 0 ]; then
set -x
fi
set -eu
set -o pipefail
# Cloud images shouldn't have ssh host keys baked
# in so that they are regenerated on first boot and
# are unique.
# TODO(greghaynes) This should be a thing we do for all images, not just
# simple-init.
if [ -d /etc/ssh ] ; then
sudo find /etc/ssh -name 'ssh_host*' -type f -delete
fi