@hook('update-status')
def update_status():
    avail = {
        'nginx': is_state('nginx.available'),
        'django': is_state('django.ready'),
        'psql': is_state('postgres.database.available'),
    }

    cur_status = status_get()

    if not avail['psql']:
        return status_set('blocked', 'postgres database required')

    ready = avail['nginx'] and avail['django'] and avail['psql']

    if ready:
        status_set('active', 'ready')

    status_set('waiting',
               ', '.join(['%s: %s' % (k, msg[v]) for k, v in avail.items()]))