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Diffstat (limited to 'extras/thin-arbiter/setup-thin-arbiter.sh')
| -rwxr-xr-x | extras/thin-arbiter/setup-thin-arbiter.sh | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/extras/thin-arbiter/setup-thin-arbiter.sh b/extras/thin-arbiter/setup-thin-arbiter.sh new file mode 100755 index 00000000000..0681b30ef3f --- /dev/null +++ b/extras/thin-arbiter/setup-thin-arbiter.sh @@ -0,0 +1,184 @@ +#!/bin/bash +# Copyright (c) 2018-2019 Red Hat, Inc. <http://www.redhat.com> +# This file is part of GlusterFS. +# +# This file is licensed to you under your choice of the GNU Lesser +# General Public License, version 3 or any later version (LGPLv3 or +# later), or the GNU General Public License, version 2 (GPLv2), in all +# cases as published by the Free Software Foundation. + + +# This tool has been developed to setup thin-arbiter process on a node. +# Seting up a thin arbiter process involves following files - +# 1 - thin-arbiter.vol +# Thin-arbiter (TA) process will use the graph in this file to load the +# required translators. +# 2 - gluster-ta-volume.service (generated by gluster-ta-volume.service.in) +# TA process would be running as systemd service. +# +# TA process uses a location to save TA id files for every subvolume. +# This location can be taken as input from user. Once provided and the +# TA process is started on a node, it can not be changed using this +# script or by any other mean. The same location should be used in +# the gluster CLI when creating thin-arbiter volumes. + +MYPATH=`dirname $0` + +volloc="/var/lib/glusterd/thin-arbiter" +mkdir -p $volloc + +if [ -f /etc/glusterfs/thin-arbiter.vol ]; then + volfile=/etc/glusterfs/thin-arbiter.vol +else + volfile=$MYPATH/thin-arbiter.vol +fi + +tafile="$volloc/thin-arbiter.vol" + + +help () { + echo " " + echo ' This tool helps to setup thin-arbiter (TA) process on a node. + TA process uses a location to save TA id files for every subvolume. + This location can be taken as input from user. Once provided and the + TA process is started on a node, it can not be changed using this script + or by any other mean. The same location should be used in gluster CLI + when creating thin-arbiter volumes. + + usage: setup-thin-arbiter.sh [-s] [-h] + options: + -s - Setup thin-arbiter file path and start process + -h - Show this help message and exit +' +} + +volfile_set_brick_path () { + while read -r line + do + dir=`echo "$line" | cut -d' ' -f 2` + if [ "$dir" = "directory" ]; then + bpath=`echo "$line" | cut -d' ' -f 3` + sed -i -- 's?'$bpath'?'$1'?g' $tafile + return + fi + done < $tafile +} + +check_ta_proc () { + pro=`ps aux | grep thin-arbiter.vol | grep "volfile-id"` + if [ "${pro}" = '' ]; then + echo "" + else + curr_loc=`cat $volloc/thin-arbiter.vol | grep option | grep directory` + loc=`echo "${curr_loc##* }"` + echo "******************************************************" + echo "Error:" + echo "Thin-arbiter process is running with thin-arbiter path = $loc" + echo "Can not change TA path on this host now." + echo "$pro" + echo "******************************************************" + exit 1 + fi +} + +getpath () { + check_ta_proc + echo "******************************************************" + echo "User will be required to enter a path/folder for arbiter volume." + echo "Please note that this path will be used for ALL VOLUMES using this" + echo "node to host thin-arbiter. After setting, if a volume" + echo "has been created using this host and path then path for" + echo "thin-arbiter can not be changed " + echo "******************************************************" + echo " " + while true; + do + echo -n "Enter brick path for thin arbiter volumes: " + echo " " + read tapath + if [ "${tapath}" = '' ]; then + echo "Please enter valid path" + continue + else + echo "Entered brick path : $tapath " + echo "Please note that this brick path will be used for ALL" + echo "VOLUMES using this node to host thin-arbiter brick" + echo -n "Want to continue? (y/N): " + echo " " + read cont + + if [ "${cont}" = 'N' ] || [ "${cont}" = 'n' ]; then + exit 0 + else + break + fi + fi + done +} + +setup () { + getpath + mkdir -p $tapath/.glusterfs/indices + if [ -d $tapath/.glusterfs/indices ]; then + echo " " + else + echo "Could not create $tapath/.glusterfs/indices directory, check provided ta path." + exit 1 + fi + + cp -f --backup --suffix=_old $volfile $volloc/thin-arbiter.vol + volfile_set_brick_path "$tapath" + + echo "Directory path to be used for thin-arbiter volume is: $tapath" + echo " " + echo "========================================================" + + if [ -f /usr/lib/systemd/system/gluster-ta-volume.service ]; then + echo "Starting thin-arbiter process" + else + cp $MYPATH/../systemd/gluster-ta-volume.service /etc/systemd/system/ + echo "Starting thin-arbiter process" + chmod 0644 /etc/systemd/system/gluster-ta-volume.service + fi + + systemctl daemon-reload + systemctl enable gluster-ta-volume + systemctl stop gluster-ta-volume + systemctl start gluster-ta-volume + + if [ $? == 0 ]; then + echo "thin-arbiter process has been setup and running" + else + echo "Failed to setup thin arbiter" + exit 1 + fi + +} + +main() +{ + + if [ "$#" -ne 1 ]; then + help + exit 0 + fi + + while getopts "sh" opt; do + case $opt in + h) + help + exit 0 + ;; + s) + setup + exit 0 + ;; + *) + help + exit 0 + ;; + esac + done +} + +main "$@" |