docker-keepalived/image/service/keepalived/finish.sh

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#!/bin/bash -e
# set -x (bash debug) if log level is trace
# https://github.com/osixia/docker-light-baseimage/blob/stable/image/tool/log-helper
log-helper level eq trace && set -x
# try to delete virtual ips from interface
for vip in $(complex-bash-env iterate KEEPALIVED_VIRTUAL_IPS)
do
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IP=$(echo ${!vip} | awk '{print $1}')
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IP_INFO=$(ip addr list | grep ${IP}) || continue
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IP_V6=$(echo "${IP_INFO}" | grep "inet6") || true
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# ipv4
if [ -z "${IP_V6}" ]; then
IP_INTERFACE=$(echo "${IP_INFO}" | awk '{print $5}')
# ipv6
else
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echo "skipping address: ${IP} - ipv6 not supported yet :("
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continue
fi
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ip addr del ${IP} dev ${IP_INTERFACE} || true
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done
exit 0