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#!/bin/sh
###############################################################################
## ----------------------------------------------------------------------------
## The scripts
## I. add-brick/pre/S28Quota-root-xattr-heal.sh (itself)
## II. add-brick/post/disabled-root-xattr-heal.sh AND
## collectively archieves the job of healing the 'limit-set' xattr upon
## add-brick to the gluster volume.
##
## This script is the 'controlling' script. Upon add-brick this script enables
## the corresponding script based on the status of the volume.
## If volume is started - enable add-brick/post script
## else - enable start/post script.
##
## The enabling and disabling of a script is based on the glusterd's logic,
## that it only runs the scripts which starts its name with 'S'. So,
## Enable - symlink the file to 'S'*.
## Disable- unlink symlink
## ----------------------------------------------------------------------------
###############################################################################
OPTSPEC="volname:,version:,gd-workdir:,volume-op:"
PROGNAME="Quota-xattr-heal-add-brick-pre"
VOL_NAME=
GLUSTERD_WORKING_DIR=
VOLUME_OP=
VERSION=
ENABLED_NAME="S28Quota-root-xattr-heal.sh"
DISABLED_NAME="disabled-quota-root-xattr-heal.sh"
enable ()
{
ln -sf $DISABLED_STATE $1;
}
##------------------------------------------
## Parse the arguments
##------------------------------------------
ARGS=$(getopt -l $OPTSPEC -name $PROGNAME $@)
eval set -- "$ARGS"
while true;
do
case $1 in
--volname)
shift
VOL_NAME=$1
;;
--gd-workdir)
shift
GLUSTERD_WORKING_DIR=$1
;;
--volume-op)
shift
VOLUME_OP=$1
;;
--version)
shift
VERSION=$1
;;
*)
shift
break
;;
esac
shift
done
##----------------------------------------
DISABLED_STATE="$GLUSTERD_WORKING_DIR/hooks/$VERSION/add-brick/post/$DISABLED_NAME"
ENABLED_STATE_START="$GLUSTERD_WORKING_DIR/hooks/$VERSION/start/post/$ENABLED_NAME"
ENABLED_STATE_ADD_BRICK="$GLUSTERD_WORKING_DIR/hooks/$VERSION/add-brick/post/$ENABLED_NAME";
## Why to proceed if the required script itself is not present?
ls $DISABLED_STATE;
if [ 0 -ne $? ]
then
exit $?;
fi
## Is quota enabled?
FLAG=`cat $GLUSTERD_WORKING_DIR/vols/$VOL_NAME/info | grep "^features.quota=" \
| awk -F'=' '{print $NF}'`;
if [ "$FLAG" != "on" ]
then
exit $EXIT_SUCCESS;
fi
## Is volume started?
FLAG=`cat $GLUSTERD_WORKING_DIR/vols/$VOL_NAME/info | grep "^status=" \
| awk -F'=' '{print $NF}'`;
if [ "$FLAG" != "1" ]
then
enable $ENABLED_STATE_START;
exit $?
fi
enable $ENABLED_STATE_ADD_BRICK;
exit $?
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