docker.images/ansible.awx/awx-17.1.0/awx/main/migrations/_inventory_source.py

106 lines
4.0 KiB
Python

import logging
from uuid import uuid4
from django.utils.encoding import smart_text
from django.utils.timezone import now
from awx.main.utils.common import set_current_apps
from awx.main.utils.common import parse_yaml_or_json
logger = logging.getLogger('awx.main.migrations')
def _get_instance_id(from_dict, new_id, default=''):
'''logic mostly duplicated with inventory_import command Command._get_instance_id
frozen in time here, for purposes of migrations
'''
instance_id = default
for key in new_id.split('.'):
if not hasattr(from_dict, 'get'):
instance_id = default
break
instance_id = from_dict.get(key, default)
from_dict = instance_id
return smart_text(instance_id)
def _get_instance_id_for_upgrade(host, new_id):
if host.instance_id:
# this should not have happened, but nothing to really do about it...
logger.debug('Unexpectedly, host {}-{} has instance_id set'.format(host.name, host.pk))
return None
host_vars = parse_yaml_or_json(host.variables)
new_id_value = _get_instance_id(host_vars, new_id)
if not new_id_value:
# another source type with overwrite_vars or pesky users could have done this
logger.info('Host {}-{} has no {} var, probably due to separate modifications'.format(
host.name, host.pk, new_id
))
return None
if len(new_id) > 255:
# this should never happen
logger.warn('Computed instance id "{}"" for host {}-{} is too long'.format(
new_id_value, host.name, host.pk
))
return None
return new_id_value
def set_new_instance_id(apps, source, new_id):
'''This methods adds an instance_id in cases where there was not one before
'''
from django.conf import settings
id_from_settings = getattr(settings, '{}_INSTANCE_ID_VAR'.format(source.upper()))
if id_from_settings != new_id:
# User applied an instance ID themselves, so nope on out of there
logger.warn('You have an instance ID set for {}, not migrating'.format(source))
return
logger.debug('Migrating inventory instance_id for {} to {}'.format(source, new_id))
Host = apps.get_model('main', 'Host')
modified_ct = 0
for host in Host.objects.filter(inventory_sources__source=source).iterator():
new_id_value = _get_instance_id_for_upgrade(host, new_id)
if not new_id_value:
continue
host.instance_id = new_id_value
host.save(update_fields=['instance_id'])
modified_ct += 1
if modified_ct:
logger.info('Migrated instance ID for {} hosts imported by {} source'.format(
modified_ct, source
))
def back_out_new_instance_id(apps, source, new_id):
Host = apps.get_model('main', 'Host')
modified_ct = 0
for host in Host.objects.filter(inventory_sources__source=source).iterator():
host_vars = parse_yaml_or_json(host.variables)
predicted_id_value = _get_instance_id(host_vars, new_id)
if predicted_id_value != host.instance_id:
logger.debug('Host {}-{} did not get its instance_id from {}, skipping'.format(
host.name, host.pk, new_id
))
continue
host.instance_id = ''
host.save(update_fields=['instance_id'])
modified_ct += 1
if modified_ct:
logger.info('Reverse migrated instance ID for {} hosts imported by {} source'.format(
modified_ct, source
))
def delete_cloudforms_inv_source(apps, schema_editor):
set_current_apps(apps)
InventorySource = apps.get_model('main', 'InventorySource')
InventoryUpdate = apps.get_model('main', 'InventoryUpdate')
CredentialType = apps.get_model('main', 'CredentialType')
InventoryUpdate.objects.filter(inventory_source__source='cloudforms').delete()
InventorySource.objects.filter(source='cloudforms').delete()
ct = CredentialType.objects.filter(namespace='cloudforms').first()
if ct:
ct.credentials.all().delete()
ct.delete()