def prepare(self):
cfg = self.config
# Data size get's a special handling because it grabs the
# remaining space
data_size = cfg.get("storage.data_size", "-1")
data_size = data_size if int(data_size) >= 0 else "-1"
self.logger.debug("Using a data_size of %s" % data_size)
model = defaults.Installation()
model.install_on(init=[cfg["boot.device.current"]] +
cfg["installation.devices"],
root_size=cfg["storage.root_size"],
efi_size=cfg["storage.efi_size"],
swap_size=cfg["storage.swap_size"],
logging_size=cfg["storage.logging_size"],
config_size=cfg["storage.config_size"],
data_size=data_size)
kbd = defaults.Keyboard()
kbd.update(self.config["keyboard.layout"])
vercfg = defaults.ConfigVersion()
vercfg.set_to_current()
def _run(self, migration_func):
try:
self.logger.info("Starting config migration")
# Migrate configs
migration_func()
# And set curret runtime version
cfgver = defaults.ConfigVersion()
cfgver.set_to_current()
self.logger.info("Config migration finished (to %s)" %
cfgver.retrieve()["ver"])
except:
self.logger.exception("Config migration failed")
def _determine_migration_func(self):
"""Determins if a migration and which migration is necessary
"""
migration_func = None
cfgver = defaults.ConfigVersion().retrieve()["ver"]
if not Config().exists("/etc/default/ovirt"):
# If the cfg file is not persisted, then this is probably
# a fresh installation, no migration needed
self.logger.info("No migration needed during installation")
elif cfgver is None:
# config is persisted, but no version set, we assume it is an
# update from pre ovirt-node-3 to ovirt-node-3
def importConfigs():
self.logger.info("Assuming pre ovirt-node-3.0 config")
ImportConfigs().translate_all()
migration_func = importConfigs
return migration_func
def commit(self):
defaults.ConfigVersion().set_to_current()