Files
awx/awx/main/ha.py
2015-06-23 11:21:00 -04:00

45 lines
1.0 KiB
Python

# Copyright (c) 2015 Ansible, Inc.
# All Rights Reserved.
# Python
import os
from IPy import IP
# Django
from django.conf import settings
# AWX
from awx.main.models import Instance
def is_ha_environment():
"""Return True if this is an HA environment, and False
otherwise.
"""
# If there are two or more instances, then we are in an HA environment.
if Instance.objects.count() > 1:
return True
# If the database is not local, then we are in an HA environment.
host = settings.DATABASES['default'].get('HOST', 'localhost')
# Is host special case 'localhost' ?
if host is 'localhost':
return False
# Check if host is an absolute file (i.e. named socket)
if os.path.isabs(host):
return False
# Is host a LOCAL or REMOTE ip address ?
try:
if IP(host).iptype() is 'LOOPBACK':
return False
else:
return True
except ValueError:
pass
# host may be a domain name like postgres.mycompany.com
# Assume HA Environment
return True