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#!/bin/sh
set -e
# set -x
usage()
{
cat <<EOF
Description:
Replace ring weight
Usage:
$0 <cluster-name> <account|container|object|object-1|...> <weight source> <weight dest>
Options:
-h: show this help menu
EOF
exit 1
}
while getopts "h" o; do
case "${o}" in
h)
usage
;;
?)
echo "Invalid option" && exit 1
;;
esac
done
shift $((OPTIND-1))
if [ $# -ne 4 ] ; then
echo "ERROR: Four arguments expected"
usage
fi
CLUSTER_NAME=${1}
RING_TYPE=${2}
SOURCE_WEIGHT=${3}
DEST_WEIGHT=${4}
LOCAL_RING_PATH="/var/lib/oci/clusters/${CLUSTER_NAME}/swift-ring"
# Build available ring list
AVAILABLE_RINGS=""
for ring in $(ls ${LOCAL_RING_PATH}/ | grep -E '^(account|container|object).*?\.builder'); do
AVAILABLE_RINGS="${AVAILABLE_RINGS} ${ring%.builder}"
done
if [ ! -e "${LOCAL_RING_PATH}/${2}.builder" ] && [ "${2}" != "all" ] ; then
echo "ERROR: Not a valid/existing ring type"
exit 1
fi
TMPFILE=$(mktemp)
swift-ring-builder ${RING_TYPE}.builder | grep " ${SOURCE_WEIGHT}.00" | awk '{print $4}' | cut -d: -f1 | sort -u >${TMPFILE}
for i in $(cat ${TMPFILE}) ; do
swift-ring-builder ${RING_TYPE}.builder set_weight ${i} ${DEST_WEIGHT} -y
done
rm ${TMPFILE}
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