def _preload_cache(self):
# Ensure we're only modifying local preload timeout from one thread.
with self._awx_conf_preload_lock:
# If local preload timeout has not expired, skip preloading.
if self._awx_conf_preload_expires and self._awx_conf_preload_expires > time.time(
):
return
# Otherwise update local preload timeout.
self.__dict__['_awx_conf_preload_expires'] = time.time(
) + SETTING_CACHE_TIMEOUT
# Check for any settings that have been defined in Python files and
# make those read-only to avoid overriding in the database.
if not self._awx_conf_init_readonly and 'migrate_to_database_settings' not in sys.argv:
defaults_snapshot = self._get_default('DEFAULTS_SNAPSHOT')
for key in get_writeable_settings(self.registry):
init_default = defaults_snapshot.get(key, None)
try:
file_default = self._get_default(key)
except AttributeError:
file_default = None
if file_default != init_default and file_default is not None:
logger.debug('Setting %s has been marked read-only!',
key)
self.registry._registry[key]['read_only'] = True
self.registry._registry[key]['defined_in_file'] = True
self.__dict__['_awx_conf_init_readonly'] = True
# If local preload timer has expired, check to see if another process
# has already preloaded the cache and skip preloading if so.
if self.cache.get('_awx_conf_preload_expires',
default=empty) is not empty:
return
# Initialize all database-configurable settings with a marker value so
# to indicate from the cache that the setting is not configured without
# a database lookup.
settings_to_cache = get_settings_to_cache(self.registry)
setting_ids = {}
# Load all settings defined in the database.
for setting in Setting.objects.filter(
key__in=settings_to_cache.keys(),
user__isnull=True).order_by('pk'):
if settings_to_cache[setting.key] != SETTING_CACHE_NOTSET:
continue
if self.registry.is_setting_encrypted(setting.key):
setting_ids[setting.key] = setting.id
try:
value = decrypt_field(setting, 'value')
except ValueError, e:
#TODO: Remove in Tower 3.3
logger.debug(
'encountered error decrypting field: %s - attempting fallback to old',
e)
value = old_decrypt_field(setting, 'value')
else:
value = setting.value
settings_to_cache[setting.key] = get_cache_value(value)
def _preload_cache(self):
# Ensure we're only modifying local preload timeout from one thread.
with self._awx_conf_preload_lock:
# If local preload timeout has not expired, skip preloading.
if self._awx_conf_preload_expires and self._awx_conf_preload_expires > time.time():
return
# Otherwise update local preload timeout.
self.__dict__['_awx_conf_preload_expires'] = time.time() + SETTING_CACHE_TIMEOUT
# Check for any settings that have been defined in Python files and
# make those read-only to avoid overriding in the database.
if not self._awx_conf_init_readonly:
defaults_snapshot = self._get_default('DEFAULTS_SNAPSHOT')
for key in get_writeable_settings(self.registry):
init_default = defaults_snapshot.get(key, None)
try:
file_default = self._get_default(key)
except AttributeError:
file_default = None
if file_default != init_default and file_default is not None:
logger.debug('Setting %s has been marked read-only!', key)
self.registry._registry[key]['read_only'] = True
self.registry._registry[key]['defined_in_file'] = True
self.__dict__['_awx_conf_init_readonly'] = True
# If local preload timer has expired, check to see if another process
# has already preloaded the cache and skip preloading if so.
if self.cache.get('_awx_conf_preload_expires', default=empty) is not empty:
return
# Initialize all database-configurable settings with a marker value so
# to indicate from the cache that the setting is not configured without
# a database lookup.
settings_to_cache = get_settings_to_cache(self.registry)
setting_ids = {}
# Load all settings defined in the database.
for setting in Setting.objects.filter(key__in=settings_to_cache.keys(), user__isnull=True).order_by('pk'):
if settings_to_cache[setting.key] != SETTING_CACHE_NOTSET:
continue
if self.registry.is_setting_encrypted(setting.key):
setting_ids[setting.key] = setting.id
try:
value = decrypt_field(setting, 'value')
except ValueError as e:
#TODO: Remove in Tower 3.3
logger.debug('encountered error decrypting field: %s - attempting fallback to old', e)
value = old_decrypt_field(setting, 'value')
else:
value = setting.value
settings_to_cache[setting.key] = get_cache_value(value)
# Load field default value for any settings not found in the database.
if SETTING_CACHE_DEFAULTS:
for key, value in settings_to_cache.items():
if value != SETTING_CACHE_NOTSET:
continue
field = self.registry.get_setting_field(key)
try:
settings_to_cache[key] = get_cache_value(field.get_default())
if self.registry.is_setting_encrypted(key):
# No database pk, so None will be passed to encryption algorithm
setting_ids[key] = SETTING_CACHE_NOTSET
except SkipField:
pass
# Generate a cache key for each setting and store them all at once.
settings_to_cache = dict([(Setting.get_cache_key(k), v) for k, v in settings_to_cache.items()])
for k, id_val in setting_ids.items():
logger.debug('Saving id in cache for encrypted setting %s, %s',
Setting.get_cache_id_key(k), id_val)
self.cache.cache.set(Setting.get_cache_id_key(k), id_val)
settings_to_cache['_awx_conf_preload_expires'] = self._awx_conf_preload_expires
self.cache.set_many(settings_to_cache, timeout=SETTING_CACHE_TIMEOUT)
