#!/bin/bash
#title           :rolling_perfstat
#description     :This script combines a single run of perfstat and
#description     :a rolling perfstat for an intermittent issue.
#author		 :Adly Taibi
#date            :2016/02/10
#version         :1.0
#usage		 :bash rolling_perfstat
#notes           :Needs perfstat8, ssh and ssh-keygen
#=========================================================================
case="2000000000"
clstr="clustermgmt"
iterations=5
sample=5
useradmin="admin"
dstpath="."
##### Should'nt need to change anything below #####
export LD_LIBRARY_PATH=libs
keysdir="perfstat_sshkey"
keyname="perf"
line=$(printf '#%.s' {1..27})
if [ ! -d ${keysdir} ]; then
	mkdir ${keysdir}
fi
if [ ! -f ${keysdir}/${keyname} ]; then
	ssh-keygen -t rsa -b 1024 -C "" -N "" -f ${keysdir}/${keyname} > /dev/null
fi
ssh -o StrictHostKeychecking=no -o NumberOfPasswordPrompts=0 -i ${keysdir}/${keyname} -l perfstat ${clstr} version > /dev/null 2>&1
if [ $? != 0 ]; then
	echo -e "The key is not on the cluster.\nPlease provide ${useradmin} password for ${clstr}"
	pubkey=$(cat ${keysdir}/${keyname}.pub)
	ssh -o StrictHostKeychecking=no -l ${useradmin} ${clstr} 'security login create -username perfstat -application ssh -authmethod publickey -role admin;security login publickey create -username perfstat -publickey "'${pubkey}'"' > /dev/null 2>&1
fi
ssh -o StrictHostKeychecking=no -o NumberOfPasswordPrompts=0 -i ${keysdir}/${keyname} -l perfstat ${clstr} version
if [ $? == 0 ]; then
	while true
	do
		output=$(date +%Y%m%d%H%M)
		echo -e "\n\n${line}\n# Working on ${output} #\n${line}"
		./perfstat8 ${clstr} -s --sshprivatekey-file ${keysdir}/${keyname} -m c -t ${sample} -i ${iterations} -z -o ${dstpath}/${case}_${output}
		if [ -f stop ]; then
			exit
		fi
	done
else
	echo "Something went wrong and the ssh key is not working."
fi