#! /bin/bash

# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
# 
#   http://www.apache.org/licenses/LICENSE-2.0
# 
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.    

if [[ $# -eq 1 ]]; then
	VMS=$1
else
	VMS=20
fi

date

#HOSTS=`./bin/getHosts | grep name | wc -l`
HOSTS="4"

echo "Hosts: ${HOSTS}"

echo "Create:"

MID=10240000
for i in `seq -w 1 $VMS`; do
	echo "./scripts/create 2 $i"
	ID=`./scripts/create 2 $i | grep "id: " | awk '{print $2}'`
	if [[ ${ID} -lt ${MID} ]]; then
		MID=${ID}
	fi
done

date

echo "Wait:"

while [[ true ]]; do
	CNT=`./bin/getInstances | grep -c Running`
	echo ${CNT}
	if [[ ${CNT} -eq ${VMS} ]]; then
		break
	fi
	sleep 1
done

sleep 20

date

echo "Migrate:"

for i in `seq 0 $((VMS-1))`; do
	echo "./bin/migrateVm $((MID+i)) $((((i+1)%HOSTS)+1))"
	./bin/migrateVm $((MID+i)) $((((i+1)%HOSTS)+1)) > /dev/null &
done
for i in `seq 0 $((VMS-1))`; do
	wait
done

date

echo "Wait:"

while [[ true ]]; do
	CNT=`./bin/getInstances | grep -c Running`
	echo ${CNT}
	if [[ ${CNT} -eq ${VMS} ]]; then
		break
	fi
	sleep 1
done

date

echo "Destroy:"

for i in `seq 0 $((VMS-1))`; do
	echo "./bin/destroyVm $((MID+i))"
	./bin/destroyVm $((MID+i)) > /dev/null 2>&1 &
done
for i in `seq 0 $((VMS-1))`; do
	wait
done

date

echo "Wait:"

while [[ true ]]; do
	CNT=`./bin/getInstances | wc -l`
	echo ${CNT}
	if [[ ${CNT} -eq 1 ]]; then
		break
	fi
	sleep 1
done

date