Demo scripts which can be used to show advantages of OpenVZ:
* == Full VE lifecycle (create, set ip, start, add user, enter, exec, show ps -axf output inside VE), stop, destroy). It should take two minutes ("compare that to a time you need to deploy a new (non-virtual) server!")==
* Massive Create VE, set IP, start, add user, enter, exec, show ps -axf output inside VE creation, stop, and destroy. Create/start 50 or 100 VEs in It should take two minutes ("compare that to a time you need to deploy a shell loopnew (non-virtual) server!"). Shows fast deployment During the demonstration, describe what's happening and high densitywhy.
* Use VEs from prev. item — load those by <code>ab</code> or <code>http_load</code> — shows that many VE Here are working quite fine, with low response time etc.the example commands needed:
* # VE=123 # IP=10.1.1.123 # sed -i "/$IP /d" ~/.ssh/ # time vzctl create $VE --ostemplate fedora-core-5-i386-default # vzctl set $VE --ipadd $IP --hostname newVE --save # vzctl start $VE # vzctl exec $VE ps axf # vzctl set $VE --userpasswd guest:secret --save # ssh guest@$IP [newVE]# ps axf [newVE]# logout # vzctl stop $VE # vzctl destroy $VE == Massive VE creation == Create/start 50 or 100 VEs in a shell loop. Shows fast deployment and high density. Here are the example commands needed: # VE=200 # time while [ $VE -lt 250 ]; do \ > time vzctl create $VE --ostemplate fedora-core-5-i386-default; \ > vzctl start $VE; \ > let VE++; \ > done == Massive VE load == Use VEs from previous item — load those by <code>ab</code> or <code>http_load</code>. This demo shows that multiple VEs are working just fine, with low response time etc. FIXME: commands, ab/http_load setup. == Live migration == If you have two boxes, do "<code>vzmigrate --online</code>" from one box to another. You can use, say, <code>xvnc</code> in a VE and <code>vncclient</code> to connect to it, then run <code>xscreensaver-demo</code> and while the picture is moving do a live migration. You'll show <code>xscreensaver</code> stalls for a few seconds but then keeps running — on another machine! That looks amazing, to say at least. FIXME: commands, setup, vnc template.
