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addon-context-linux/base/etc/one-context.d/02-ssh_public_key

63 lines
2.0 KiB

#!/bin/bash
# -------------------------------------------------------------------------- #
# Copyright 2010-2014, C12G Labs S.L. #
# #
# 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. #
#--------------------------------------------------------------------------- #
[ -z "${SSH_PUBLIC_KEY}${EC2_PUBLIC_KEY}" ] && exit 0
if [ -z "${USERNAME}" ]
then
USERNAME=root
fi
# Get user $HOME directory
USER_HOME=$(getent passwd "${USERNAME}" | awk -F':' '{print $6}')
if [ -n "${USER_HOME}" ]
then
AUTH_DIR="${USER_HOME}/.ssh"
else
# Fallback on root
AUTH_DIR="/root/.ssh"
fi
AUTH_FILE="$AUTH_DIR/authorized_keys"
function add_keys {
while read key; do
if ! grep -q -F "$key" $AUTH_FILE; then
echo "$key" >> $AUTH_FILE
fi
done
}
[ -z "${SSH_PUBLIC_KEY}${EC2_PUBLIC_KEY}" ] && exit 0
mkdir -m0700 -p $AUTH_DIR
[ ! -f $AUTH_FILE ] && touch $AUTH_FILE
if [ -n "$SSH_PUBLIC_KEY" ]; then
echo "$SSH_PUBLIC_KEY" | add_keys
fi
if [ -n "$EC2_PUBLIC_KEY" ]; then
echo "$EC2_PUBLIC_KEY" | add_keys
fi
chown "${USERNAME}": ${AUTH_DIR} ${AUTH_FILE}
chmod 600 $AUTH_FILE