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#!/bin/sh
# shellcheck shell=ash
# shellcheck source=/dev/null
. /lib/functions/keepalived/common.sh
if [ $# -lt 3 ]; then
echo "$0 <vrrp_instance> <peer> <rsync_dir>"
exit 1
fi
VRRP_INSTANCE=$1
PEER=$2
RSYNC_DIR=$3
INOTIFY_ACTIONS="create,delete,modify,move,moved_to,moved_from"
INOTIFY_PID=""
TMP_DIR=/tmp/keepalived
FIFO_FILE="$TMP_DIR"/inotifywait-$PEER.fifo
daemonize_inotifywait() {
/usr/bin/inotifywait -q -r --exclude '/\..+' -o "$FIFO_FILE" -m "$RSYNC_DIR" -e ${INOTIFY_ACTIONS} 2> /dev/null &
INOTIFY_PID="$!"
}
main() {
local inotify_action inotify_dir inotify_file
local source_file target_file
[ ! -d "$TMP_DIR" ] && mkdir "$TMP_DIR"
mkfifo "${FIFO_FILE}" || exit 1
daemonize_inotifywait
while read -r inotify_dir inotify_action inotify_file; do
source_file="${inotify_dir}${inotify_file}"
target_file=$(echo "${inotify_dir}" | sed -e "s:${RSYNC_DIR}::g")"${inotify_file}"
log_debug "received $target_file ($inotify_action) in $source_file"
ACTION=NOTIFY_SYNC TYPE=peer NAME=$PEER INSTANCE=$VRRP_INSTANCE \
RSYNC_SOURCE="${source_file}" RSYNC_TARGET="${target_file}" \
/sbin/hotplug-call keepalived
done < "$FIFO_FILE"
}
TRAP() {
[ -n "$INOTIFY_PID" ] && kill "$INOTIFY_PID"
[ -e "$FIFO_FILE" ] && rm -f "$FIFO_FILE"
}
trap TRAP TERM INT
main "$@"
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