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56 lines
2.1 KiB
Python
56 lines
2.1 KiB
Python
# Copyright (c) 2016 Ansible, Inc.
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# All Rights Reserved
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import subprocess
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import warnings
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from django.db import transaction
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from django.core.management.base import BaseCommand, CommandError
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from awx.main.models import Instance
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from awx.main.utils.pglock import advisory_lock
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class Command(BaseCommand):
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"""
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Deprovision a Tower cluster node
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"""
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help = (
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'Remove instance from the database. '
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'Specify `--hostname` to use this command.'
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)
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def add_arguments(self, parser):
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parser.add_argument('--hostname', dest='hostname', type=str,
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help='Hostname used during provisioning')
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parser.add_argument('--name', dest='name', type=str,
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help='(PENDING DEPRECIATION) Hostname used during provisioning')
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@transaction.atomic
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def handle(self, *args, **options):
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# TODO: remove in 3.3
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if options.get('name'):
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warnings.warn("`--name` is depreciated in favor of `--hostname`, and will be removed in release 3.3.")
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if options.get('hostname'):
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raise CommandError("Cannot accept both --name and --hostname.")
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options['hostname'] = options['name']
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hostname = options.get('hostname')
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if not hostname:
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raise CommandError("--hostname is a required argument")
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with advisory_lock('instance_registration_%s' % hostname):
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instance = Instance.objects.filter(hostname=hostname)
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if instance.exists():
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instance.delete()
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print("Instance Removed")
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result = subprocess.Popen("rabbitmqctl forget_cluster_node rabbitmq@{}".format(hostname), shell=True).wait()
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if result != 0:
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print("Node deprovisioning may have failed when attempting to "
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"remove the RabbitMQ instance {} from the cluster".format(hostname))
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else:
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print('Successfully deprovisioned {}'.format(hostname))
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print('(changed: True)')
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else:
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print('No instance found matching name {}'.format(hostname))
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