lustre_vms

#!/bin/sh

die_badly() {
	echo Can not continue
	exit 1
}

usage() {
	echo $0 connect - splits the current TMUX console into four sessions and connects to VMS
	echo $0 create  - creates a new Lustre VM clustre
	echo $0 destroy - completely destroys all lustre vms
	echo $0 yank    - shutdown by yanking power
	echo $0 start   - starts all vms with lustre in their name
	echo $0 stop    - stops all active vms with lustre in their name
	echo $0 status  - list all active vms with lustre in their name
}

if [ $# -eq 0 ]
then
	usage
	die_badly
fi

inactive_vms() {
	sudo virsh list --inactive --name | grep $1
}
active_vms() {
	sudo virsh list --state-running --name | grep $1
}
all_vms() {
	sudo virsh list --all --name | grep $1
}
connect() {
	tmux splitw -h -p 50  "ssh root@lustre_mgs_mdt -i vm-ssh-key"
	tmux splitw  -p 50 "ssh root@lustre_oss1 -i vm-ssh-key"
	tmux selectp -t 0
	tmux split -p 50 "ssh root@lustre_oss2 -i vm-ssh-key"
	tmux selectp -t 0
	ssh root@lustre_client1 -i vm-ssh-key
}

case $1 in
	sta* )
	for vm in $(inactive_vms lustre)
	do
		sudo virsh start $vm || die_badly
	done
	exit 0
	;;
	destroy )
	for vm in $(inactive_vms lustre)
	do
		sudo virsh undefine $vm --remove-all-storage || die_badly
	done
	exit 0
	;;
	yank )
	for vm in $(active_vms lustre)
	do
		sudo virsh destroy $vm || die_badly
	done
	exit 0
	;;
	create )
#		sudo ./create.centos6 lustre_mgs_mdt || die_badly
#		sudo ./create.centos6 lustre_oss1 || die_badly
#		sudo ./create.centos6 lustre_oss2 || die_badly
#		sudo ./create.centos6 lustre_client1 || die_badly
		tmux split -p 80 "sudo ./create.centos6 lustre_mgs_mdt"
		tmux split -p 66 "sleep 5; sudo ./create.centos6 lustre_oss1"
		tmux split -p 50 "sleep 10; sudo ./create.centos6 lustre_oss2"
		sleep 15;
		sudo ./create.centos6 lustre_client1
	exit 0
	;;
	con* )
		connect
	exit 0
	;;
	all* )
		all_vms lustre
	exit 0
	;;
	run* )
		active_vms lustre
	exit 0
	;;
	sto* )
	for vm in $(active_vms lustre)
	do
		sudo virsh shutdown $vm || die_badly
	done
	exit 0
	;;
	* )
	echo Command option not understood: $1
	usage
	die_badly
esac