maas/charts/maas/templates/bin/_maas-vip-configure.sh.tpl

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#!/bin/bash
{{/*
Copyright 2018 The Openstack-Helm Authors.
Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
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.*/}}
set -ex
COMMAND="${@:-start}"
function kernel_modules () {
chroot /mnt/host-rootfs modprobe dummy
}
function test_vip () {
ip addr show ${interface} | \
awk "/inet / && /${interface}/{print \$2 }" | \
awk -F '/' '{ print $1 }' | \
grep -q "${addr%/*}"
}
function start () {
kernel_modules
ip link show ${interface} > /dev/null || ip link add ${interface} type dummy
if ! test_vip; then
ip addr add ${addr} dev ${interface}
fi
ip link set ${interface} up
}
function sleep () {
exec /usr/bin/dumb-init bash -c "while :; do sleep 2073600; done"
}
function stop () {
ip link show ${interface} > /dev/null || exit 0
if test_vip; then
ip addr del ${addr} dev ${interface}
fi
if [ "$(ip address show ${interface} | \
awk "/inet / && /${interface}/{print \$2 }" | \
wc -l)" -le "0" ]; then
ip link set ${interface} down
ip link del ${interface}
fi
}
$COMMAND