OpenCraft IM - Automatically terminate old & failed VMs

gistfile1.py

# Ensure to disable auto-indent before pasting in ipython: %autoindent
from instance.models.appserver import Status

for instance in OpenEdXInstance.objects.all():
    for appserver in instance.appserver_set.all():
        if appserver.status == Status.ConfigurationFailed:
            appserver.terminate_vm()
        elif instance.active_appserver and appserver.created < instance.active_appserver.created:
            appserver.terminate_vm()

@antoviaque Just one suggestion going forward (i.e. for automating it as part of OC IM) - we might want to keep most-recent-inactive-provisioned servers just to be sure we can rollback if something goes wrong.