OpenNebula

Two new functions are added to scripts common and both xen and kvm shutdown scripts make use of them:

# Parameters are times (seconds) and monitoring command (or function).
# Executes monitoring command until it is successful (VM is no longer
# running) or the timeout is reached.
function retry
{
    [...]
}

# Parameters are deploy_id and cancel command. If the last command is
# unsuccessful and $FORCE_DESTROY=yes then calls cancel command
function force_shutdown {
    [...]
}

Also new configuration variables are aded to the driver configuration:

# Senconds to wait after shutdown until timeout
export SHUTDOWN_TIMEOUT=120

# Uncoment this line to force VM cancellation after shutdown timeout
#export FORCE_DESTROY=yes