def cmd_halt():
"""Shutdown the system.
"""
for instance in all_instances():
if instance.state == RUNNING:
instance.stop()
# TODO: stop postgresql
supervisor.stop()
def cmd_list():
"""Lists the existing instances.
"""
instances = all_instances()
for instance in instances:
print "Instance: %s" % instance.iid
print instance
return instances
def cmd_clean():
"""Drop database and remove all instances (useful for debugging).
"""
for instance in all_instances():
if instance.state == RUNNING:
instance.stop()
instance.purge()
session.delete(instance)
session.commit()
#os.unlink(DB)
system("rm -rf %s/nginx" % HOME)
def cmd_boot():
"""Boot the system. Should only be called once after a reboot.
"""
Base.metadata.create_all(engine)
# TODO: setup/start postgresql
supervisor.gen_conf()
setup_nginx()
for instance in all_instances():
if instance.state == RUNNING:
instance.state = READY
instance.setup_nginx_config(reload=False)
supervisor.start()
def cmd_monitor():
"""Scans all the instances and stops those that can be stopped.
"""
for instance in all_instances():
instance.monitor()
session.commit()