def cmd_destroy(iid):
"""Destroys the given instance.
"""
instance = get_instance(iid)
if instance.state != READY:
raise Exception("Can't destroy an instance that is not stopped")
instance.state = DESTROYED
session.commit()
def cmd_stop(iid):
"""Stops the given instance.
"""
instance = get_instance(iid)
if instance.state != RUNNING:
raise Exception("Can't stop an instance that is not running")
instance.stop()
session.commit()
print "Instance %d stopped" % instance.iid
def cmd_start(iid):
"""Starts the given instance.
"""
instance = get_instance(iid)
if instance.state != READY:
raise Exception("Can't start an instance that is not ready")
instance.start()
session.commit()
print "Instance %d started on port %d" % (instance.iid, instance.port)
def cmd_purge(iid):
"""Purge (deletes completely) the given instance.
"""
instance = get_instance(iid)
if instance.state != DESTROYED:
raise Exception("Can't purge an instance that is not destroyed")
instance.purge()
session.delete(instance)
session.commit()
def cmd_info(iid): """Detailed info about the given instance. """ instance = get_instance(iid) print instance return instance
