mirror of
https://github.com/home-assistant/supervisor.git
synced 2025-06-26 11:56:30 +00:00
331 lines
9.2 KiB
Python
331 lines
9.2 KiB
Python
"""Interface class for Hass.io Docker object."""
|
|
import asyncio
|
|
from contextlib import suppress
|
|
import logging
|
|
|
|
import docker
|
|
|
|
from .stats import DockerStats
|
|
from ..const import LABEL_VERSION, LABEL_ARCH
|
|
from ..coresys import CoreSysAttributes
|
|
from ..utils import process_lock
|
|
|
|
_LOGGER = logging.getLogger(__name__)
|
|
|
|
|
|
class DockerInterface(CoreSysAttributes):
|
|
"""Docker Hass.io interface."""
|
|
|
|
def __init__(self, coresys):
|
|
"""Initialize Docker base wrapper."""
|
|
self.coresys = coresys
|
|
self._meta = None
|
|
self.lock = asyncio.Lock(loop=coresys.loop)
|
|
|
|
@property
|
|
def timeout(self):
|
|
"""Return timeout for Docker actions."""
|
|
return 30
|
|
|
|
@property
|
|
def name(self):
|
|
"""Return name of Docker container."""
|
|
return None
|
|
|
|
@property
|
|
def meta_config(self):
|
|
"""Return meta data of configuration for container/image."""
|
|
if not self._meta:
|
|
return {}
|
|
return self._meta.get('Config', {})
|
|
|
|
@property
|
|
def meta_labels(self):
|
|
"""Return meta data of labels for container/image."""
|
|
return self.meta_config.get('Labels', {})
|
|
|
|
@property
|
|
def image(self):
|
|
"""Return name of Docker image."""
|
|
return self.meta_config.get('Image')
|
|
|
|
@property
|
|
def version(self):
|
|
"""Return version of Docker image."""
|
|
return self.meta_labels.get(LABEL_VERSION)
|
|
|
|
@property
|
|
def arch(self):
|
|
"""Return arch of Docker image."""
|
|
return self.meta_labels.get(LABEL_ARCH)
|
|
|
|
@property
|
|
def in_progress(self):
|
|
"""Return True if a task is in progress."""
|
|
return self.lock.locked()
|
|
|
|
@process_lock
|
|
def install(self, tag):
|
|
"""Pull docker image."""
|
|
return self.sys_run_in_executor(self._install, tag)
|
|
|
|
def _install(self, tag):
|
|
"""Pull Docker image.
|
|
|
|
Need run inside executor.
|
|
"""
|
|
try:
|
|
_LOGGER.info("Pull image %s tag %s.", self.image, tag)
|
|
image = self.sys_docker.images.pull(f"{self.image}:{tag}")
|
|
|
|
image.tag(self.image, tag='latest')
|
|
self._meta = image.attrs
|
|
except docker.errors.APIError as err:
|
|
_LOGGER.error("Can't install %s:%s -> %s.", self.image, tag, err)
|
|
return False
|
|
|
|
_LOGGER.info("Tag image %s with version %s as latest", self.image, tag)
|
|
return True
|
|
|
|
def exists(self):
|
|
"""Return True if Docker image exists in local repository."""
|
|
return self.sys_run_in_executor(self._exists)
|
|
|
|
def _exists(self):
|
|
"""Return True if Docker image exists in local repository.
|
|
|
|
Need run inside executor.
|
|
"""
|
|
try:
|
|
image = self.sys_docker.images.get(self.image)
|
|
assert f"{self.image}:{self.version}" in image.tags
|
|
except (docker.errors.DockerException, AssertionError):
|
|
return False
|
|
|
|
return True
|
|
|
|
def is_running(self):
|
|
"""Return True if Docker is running.
|
|
|
|
Return a Future.
|
|
"""
|
|
return self.sys_run_in_executor(self._is_running)
|
|
|
|
def _is_running(self):
|
|
"""Return True if Docker is running.
|
|
|
|
Need run inside executor.
|
|
"""
|
|
try:
|
|
container = self.sys_docker.containers.get(self.name)
|
|
image = self.sys_docker.images.get(self.image)
|
|
except docker.errors.DockerException:
|
|
return False
|
|
|
|
# container is not running
|
|
if container.status != 'running':
|
|
return False
|
|
|
|
# we run on an old image, stop and start it
|
|
if container.image.id != image.id:
|
|
return False
|
|
|
|
return True
|
|
|
|
@process_lock
|
|
def attach(self):
|
|
"""Attach to running Docker container."""
|
|
return self.sys_run_in_executor(self._attach)
|
|
|
|
def _attach(self):
|
|
"""Attach to running docker container.
|
|
|
|
Need run inside executor.
|
|
"""
|
|
try:
|
|
if self.image:
|
|
self._meta = self.sys_docker.images.get(self.image).attrs
|
|
else:
|
|
self._meta = self.sys_docker.containers.get(self.name).attrs
|
|
except docker.errors.DockerException:
|
|
return False
|
|
|
|
_LOGGER.info(
|
|
"Attach to image %s with version %s", self.image, self.version)
|
|
|
|
return True
|
|
|
|
@process_lock
|
|
def run(self):
|
|
"""Run Docker image."""
|
|
return self.sys_run_in_executor(self._run)
|
|
|
|
def _run(self):
|
|
"""Run Docker image.
|
|
|
|
Need run inside executor.
|
|
"""
|
|
raise NotImplementedError()
|
|
|
|
@process_lock
|
|
def stop(self):
|
|
"""Stop/remove Docker container."""
|
|
return self.sys_run_in_executor(self._stop)
|
|
|
|
def _stop(self):
|
|
"""Stop/remove and remove docker container.
|
|
|
|
Need run inside executor.
|
|
"""
|
|
try:
|
|
container = self.sys_docker.containers.get(self.name)
|
|
except docker.errors.DockerException:
|
|
return False
|
|
|
|
if container.status == 'running':
|
|
_LOGGER.info("Stop %s Docker application", self.image)
|
|
with suppress(docker.errors.DockerException):
|
|
container.stop(timeout=self.timeout)
|
|
|
|
with suppress(docker.errors.DockerException):
|
|
_LOGGER.info("Clean %s Docker application", self.image)
|
|
container.remove(force=True)
|
|
|
|
return True
|
|
|
|
@process_lock
|
|
def remove(self):
|
|
"""Remove Docker images."""
|
|
return self.sys_run_in_executor(self._remove)
|
|
|
|
def _remove(self):
|
|
"""remove docker images.
|
|
|
|
Need run inside executor.
|
|
"""
|
|
# Cleanup container
|
|
self._stop()
|
|
|
|
_LOGGER.info(
|
|
"Remove Docker %s with latest and %s", self.image, self.version)
|
|
|
|
try:
|
|
with suppress(docker.errors.ImageNotFound):
|
|
self.sys_docker.images.remove(
|
|
image=f"{self.image}:latest", force=True)
|
|
|
|
with suppress(docker.errors.ImageNotFound):
|
|
self.sys_docker.images.remove(
|
|
image=f"{self.image}:{self.version}", force=True)
|
|
|
|
except docker.errors.DockerException as err:
|
|
_LOGGER.warning("Can't remove image %s: %s", self.image, err)
|
|
return False
|
|
|
|
self._meta = None
|
|
return True
|
|
|
|
@process_lock
|
|
def update(self, tag):
|
|
"""Update a Docker image."""
|
|
return self.sys_run_in_executor(self._update, tag)
|
|
|
|
def _update(self, tag):
|
|
"""Update a docker image.
|
|
|
|
Need run inside executor.
|
|
"""
|
|
_LOGGER.info(
|
|
"Update Docker %s with %s:%s", self.version, self.image, tag)
|
|
|
|
# Update docker image
|
|
if not self._install(tag):
|
|
return False
|
|
|
|
# Stop container & cleanup
|
|
self._stop()
|
|
self._cleanup()
|
|
|
|
return True
|
|
|
|
def logs(self):
|
|
"""Return Docker logs of container.
|
|
|
|
Return a Future.
|
|
"""
|
|
return self.sys_run_in_executor(self._logs)
|
|
|
|
def _logs(self):
|
|
"""Return Docker logs of container.
|
|
|
|
Need run inside executor.
|
|
"""
|
|
try:
|
|
container = self.sys_docker.containers.get(self.name)
|
|
except docker.errors.DockerException:
|
|
return b""
|
|
|
|
try:
|
|
return container.logs(tail=100, stdout=True, stderr=True)
|
|
except docker.errors.DockerException as err:
|
|
_LOGGER.warning("Can't grep logs from %s: %s", self.image, err)
|
|
|
|
@process_lock
|
|
def cleanup(self):
|
|
"""Check if old version exists and cleanup."""
|
|
return self.sys_run_in_executor(self._cleanup)
|
|
|
|
def _cleanup(self):
|
|
"""Check if old version exists and cleanup.
|
|
|
|
Need run inside executor.
|
|
"""
|
|
try:
|
|
latest = self.sys_docker.images.get(self.image)
|
|
except docker.errors.DockerException:
|
|
_LOGGER.warning("Can't find %s for cleanup", self.image)
|
|
return False
|
|
|
|
for image in self.sys_docker.images.list(name=self.image):
|
|
if latest.id == image.id:
|
|
continue
|
|
|
|
with suppress(docker.errors.DockerException):
|
|
_LOGGER.info("Cleanup Docker images: %s", image.tags)
|
|
self.sys_docker.images.remove(image.id, force=True)
|
|
|
|
return True
|
|
|
|
@process_lock
|
|
def execute_command(self, command):
|
|
"""Create a temporary container and run command."""
|
|
return self.sys_run_in_executor(self._execute_command, command)
|
|
|
|
def _execute_command(self, command):
|
|
"""Create a temporary container and run command.
|
|
|
|
Need run inside executor.
|
|
"""
|
|
raise NotImplementedError()
|
|
|
|
def stats(self):
|
|
"""Read and return stats from container."""
|
|
return self.sys_run_in_executor(self._stats)
|
|
|
|
def _stats(self):
|
|
"""Create a temporary container and run command.
|
|
|
|
Need run inside executor.
|
|
"""
|
|
try:
|
|
container = self.sys_docker.containers.get(self.name)
|
|
except docker.errors.DockerException:
|
|
return None
|
|
|
|
try:
|
|
stats = container.stats(stream=False)
|
|
return DockerStats(stats)
|
|
except docker.errors.DockerException as err:
|
|
_LOGGER.error("Can't read stats from %s: %s", self.name, err)
|
|
return None
|