tecff-remove-node-from-hopglass-data

#!/bin/bash
# this script removes a node, identified by its nodeid, from hopglass-server raw data
# dependencies: hopglass-server, jq

if [ "$#" -ne 1 ]; then
	echo "missing nodeid or too many arguments"
	exit
fi

NODEID="${1//:}"

RAW="/var/lib/hopglass-server/raw.json"

systemctl stop hopglass-server@default.service
if [ "$?" -ne "0" ]; then
	echo "problem with stopping hopglass-server"
	exit
fi

cp $RAW ${RAW}.$(date +%Y-%m-%d:%H:%M:%S)
if [ "$?" -ne "0" ]; then
	echo "problem with backup of $RAW"
	exit
else
	echo "created backup of $RAW"
fi

jq -c --arg nodeid $NODEID 'with_entries(select(.key != $nodeid))' $RAW > ${RAW}.tmp
if [ "$?" -ne "0" ]; then
	echo "problem with jq processing"
	exit
fi

mv ${RAW}.tmp $RAW
if [ "$?" -ne "0" ]; then
	echo "problem with moving modified hopglass-server raw file"
	exit
fi

systemctl start hopglass-server@default.service
if [ "$?" -ne "0" ]; then
	echo "problem with starting hopglass-server"
	exit
fi

echo "removed $NODEID from $RAW successfully."