supervisor/hassio/supervisor.py
2018-09-18 18:17:20 +02:00

116 lines
3.5 KiB
Python

"""Home Assistant control object."""
import asyncio
import logging
from pathlib import Path
from tempfile import TemporaryDirectory
import aiohttp
from .coresys import CoreSysAttributes
from .docker.supervisor import DockerSupervisor
from .const import URL_HASSIO_APPARMOR
from .exceptions import HostAppArmorError
_LOGGER = logging.getLogger(__name__)
class Supervisor(CoreSysAttributes):
"""Home Assistant core object for handle it."""
def __init__(self, coresys):
"""Initialize hass object."""
self.coresys = coresys
self.instance = DockerSupervisor(coresys)
async def load(self):
"""Prepare Home Assistant object."""
if not await self.instance.attach():
_LOGGER.fatal("Can't setup Supervisor Docker container!")
await self.instance.cleanup()
@property
def need_update(self):
"""Return True if an update is available."""
return self.version != self.last_version
@property
def version(self):
"""Return version of running Home Assistant."""
return self.instance.version
@property
def last_version(self):
"""Return last available version of Home Assistant."""
return self.sys_updater.version_hassio
@property
def image(self):
"""Return image name of Home Assistant container."""
return self.instance.image
@property
def arch(self):
"""Return arch of the Hass.io container."""
return self.instance.arch
async def update_apparmor(self):
"""Fetch last version and update profile."""
url = URL_HASSIO_APPARMOR
try:
_LOGGER.info("Fetch AppArmor profile %s", url)
async with self.sys_websession.get(url, timeout=10) as request:
data = await request.text()
except (aiohttp.ClientError, asyncio.TimeoutError) as err:
_LOGGER.warning("Can't fetch AppArmor profile: %s", err)
return
with TemporaryDirectory(dir=self.sys_config.path_tmp) as tmp_dir:
profile_file = Path(tmp_dir, 'apparmor.txt')
try:
profile_file.write_text(data)
except OSError as err:
_LOGGER.error("Can't write temporary profile: %s", err)
return
try:
await self.sys_host.apparmor.load_profile(
"hassio-supervisor", profile_file)
except HostAppArmorError:
_LOGGER.error("Can't update AppArmor profile!")
async def update(self, version=None):
"""Update Home Assistant version."""
version = version or self.last_version
if version == self.sys_supervisor.version:
_LOGGER.warning("Version %s is already installed", version)
return
_LOGGER.info("Update Supervisor to version %s", version)
if await self.instance.install(version):
await self.update_apparmor()
self.sys_loop.call_later(1, self.sys_loop.stop)
return True
_LOGGER.error("Update of Hass.io fails!")
return False
@property
def in_progress(self):
"""Return True if a task is in progress."""
return self.instance.in_progress
def logs(self):
"""Get Supervisor docker logs.
Return a coroutine.
"""
return self.instance.logs()
def stats(self):
"""Return stats of Supervisor.
Return a coroutine.
"""
return self.instance.stats()