diskimage-builder/elements/runtime-ssh-host-keys/static/usr/local/sbin/runtime-ssh-host-keys.sh
Clark Boylan c5ec1348c3 Fix runtime ssh host keys script
The script is set -e and set -o pipefail, unfortauntely this intersects
with `yes n`'s non zero exit code behavior when it receives an interrupt
like sigpipe. As a result stop setting pipefail so that we treat those
errors as "normal" and only fail if ssh-keygen fails.

Change-Id: I5447df97c9888cae3007e235e2fea44df61af28e
2016-11-19 18:02:33 -05:00

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#!/bin/bash
# Copyright 2016 Red Hat, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
# dib-lint: disable=dibdebugtrace setpipefail
set -exu
# We are running into race conditions with glean, which ssh-keygen -A is
# not handling properly. So, create a new script to first check if the
# file exists, then use 'yes' to disable overwriting of existing files.
for key in dsa ecdsa ed25519 rsa; do
FILE=/etc/ssh/ssh_host_${key}_key
if ! [ -f $FILE ]; then
/usr/bin/yes n | /usr/bin/ssh-keygen -f $FILE -N '' -t $key
fi
done