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-rwxr-xr-xextras/thin-arbiter/setup-thin-arbiter.sh197
1 files changed, 156 insertions, 41 deletions
diff --git a/extras/thin-arbiter/setup-thin-arbiter.sh b/extras/thin-arbiter/setup-thin-arbiter.sh
index 32fe7fc..1c77cf0 100755
--- a/extras/thin-arbiter/setup-thin-arbiter.sh
+++ b/extras/thin-arbiter/setup-thin-arbiter.sh
@@ -1,17 +1,61 @@
-#! /bin/bash
+#!/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.
+
volloc="/var/lib/glusterd/thin-arbiter"
mkdir -p $volloc
-cp -f extras/thin-arbiter/thin-arbiter.vol $volloc/thin-arbiter.vol
+if [ -f /etc/glusterfs/thin-arbiter.vol ]; then
+ volfile=/etc/glusterfs/thin-arbiter.vol
+else
+ volfile=extras/thin-arbiter/thin-arbiter.vol
+fi
+
tafile="$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
+ if [ "$dir" = "directory" ]; then
bpath=`echo "$line" | cut -d' ' -f 3`
sed -i -- 's?'$bpath'?'$1'?g' $tafile
return
@@ -19,50 +63,121 @@ volfile_set_brick_path () {
done < $tafile
}
-tapath="/mnt/thin-arbiter"
-echo "Volume file to be used to start thin-arbiter process is :"
-echo "$tafile"
-echo " "
-echo "Default thin-arbiter path is : $tapath"
-echo -n "Do you want to change path for thin arbiter volumes. (y/N): "
-echo " "
-read moveon
-
-if [ "${moveon}" = 'N' ] || [ "${moveon}" = 'n' ]; then
- echo "Default brick path, $tapath, has been set"
- echo "for all thin arbiter volumes using this node"
+check_ta_proc () {
+ pro=`ps aux | grep thin-arbiter.vol | grep "volfile-id"`
+ if [ "${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 " "
-else
- echo -n "Enter brick path for thin arbiter volumes: "
- read tapath
- echo "Entered brick path : $tapath "
- echo "Please note that this brick path will be used for ALL"
- echo "VOLUMES using this node to host thin-arbiter brick"
+ while true;
+ do
+ echo -n "Enter brick path for thin arbiter volumes: "
+ echo " "
+ read tapath
+ if [ "${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 " "
-fi
+ echo "========================================================"
-mkdir -p $tapath/.glusterfs/indices
-volfile_set_brick_path "$tapath"
+ if [ -f /usr/lib/systemd/system/gluster-ta-volume.service ]; then
+ echo "Starting thin-arbiter process"
+ else
+ cp ../systemd/gluster-ta-volume.service /etc/systemd/system/
+ echo "Starting thin-arbiter process"
+ chmod 0644 /etc/systemd/system/gluster-ta-volume.service
+ fi
-echo "Directory path to be used for thin-arbiter volume is: $tapath"
-echo " "
+ systemctl daemon-reload
+ systemctl enable gluster-ta-volume
+ systemctl stop gluster-ta-volume
+ systemctl start gluster-ta-volume
-echo "========================================================"
+ if [ $? == 0 ]; then
+ echo "thin-arbiter process has been setup and running"
+ else
+ echo "Failed to setup thin arbiter"
+ exit 1
+ fi
-echo "Installing and starting service for thin-arbiter process"
+}
-cp extras/thin-arbiter/gluster-ta-volume.service /etc/systemd/system/
+main()
+{
-chmod 0777 /etc/systemd/system/gluster-ta-volume.service
+ if [ "$#" -ne 1 ]; then
+ help
+ exit 0
+ fi
-systemctl daemon-reload
-systemctl enable gluster-ta-volume
-systemctl stop gluster-ta-volume
-systemctl start gluster-ta-volume
+ while getopts "sh" opt; do
+ case $opt in
+ h)
+ help
+ exit 0
+ ;;
+ s)
+ setup
+ exit 0
+ ;;
+ *)
+ help
+ exit 0
+ ;;
+ esac
+ done
+}
-if [ $? == 0 ]
-then
- echo "thin-arbiter process is setup and running"
-else
- echo "Failed to setup thin arbiter"
-fi
+main "$@"