diskimage-builder/diskimage_builder/elements/fail2ban/post-install.d/80-enable-fail2ban-service
Charalampos Kominos b197d2c641 feat: Add new fail2ban elemenent
This patch proposes a new element which installs fail2ban on the final
image. More crucially, a custom jail.local is injected during built
time which is a useful feature for cloud admins.

Change-Id: I47b90bbf3809cd6f90148b848b2afe4233be79d7
Signed-off-by: Charalampos Kominos <hkominos@gmail.com>
2023-11-25 20:23:31 +00:00

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#!/bin/bash
# Copyright (c) 2023 ECMWF
#
# 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.
if [ "${DIB_DEBUG_TRACE:-0}" -gt 0 ]; then
set -x
fi
set -eu
set -o pipefail
case "$DIB_INIT_SYSTEM" in
systemd)
systemctl enable fail2ban.service
;;
openrc)
rc-update add fail2ban default
;;
*)
echo "Unsupported init system $DIB_INIT_SYSTEM"
exit 1
;;
esac
if [ -z "${DIB_FAIL2BAN_CONF:-}" ] ; then
echo "DIB_FAIL2BAN_CONF is not set - no fail2ban config can be found"
exit 0
fi
for file in $DIB_FAIL2BAN_CONF; do
if [ -f $file ]; then
echo "$file is not a valid fail2ban file"
echo "We need a proper file DIB_FAIL2BAN.CONF"
fi
done