Files
supervisor/supervisor/api/dns.py
Pascal Vizeli 9dba78fbcd Improve version handling (#1744)
* version handling helper

* Improve version handling

* Fix bug
2020-05-22 14:21:47 +02:00

103 lines
3.3 KiB
Python

"""Init file for Supervisor DNS RESTful API."""
import asyncio
import logging
from typing import Any, Awaitable, Dict
from aiohttp import web
import voluptuous as vol
from ..const import (
ATTR_BLK_READ,
ATTR_BLK_WRITE,
ATTR_CPU_PERCENT,
ATTR_HOST,
ATTR_LOCALS,
ATTR_MEMORY_LIMIT,
ATTR_MEMORY_PERCENT,
ATTR_MEMORY_USAGE,
ATTR_NETWORK_RX,
ATTR_NETWORK_TX,
ATTR_SERVERS,
ATTR_VERSION,
ATTR_VERSION_LATEST,
CONTENT_TYPE_BINARY,
)
from ..coresys import CoreSysAttributes
from ..exceptions import APIError
from ..validate import dns_server_list, simple_version
from .utils import api_process, api_process_raw, api_validate
_LOGGER: logging.Logger = logging.getLogger(__name__)
# pylint: disable=no-value-for-parameter
SCHEMA_OPTIONS = vol.Schema({vol.Optional(ATTR_SERVERS): dns_server_list})
SCHEMA_VERSION = vol.Schema({vol.Optional(ATTR_VERSION): simple_version})
class APICoreDNS(CoreSysAttributes):
"""Handle RESTful API for DNS functions."""
@api_process
async def info(self, request: web.Request) -> Dict[str, Any]:
"""Return DNS information."""
return {
ATTR_VERSION: self.sys_plugins.dns.version,
ATTR_VERSION_LATEST: self.sys_plugins.dns.latest_version,
ATTR_HOST: str(self.sys_docker.network.dns),
ATTR_SERVERS: self.sys_plugins.dns.servers,
ATTR_LOCALS: self.sys_host.network.dns_servers,
}
@api_process
async def options(self, request: web.Request) -> None:
"""Set DNS options."""
body = await api_validate(SCHEMA_OPTIONS, request)
if ATTR_SERVERS in body:
self.sys_plugins.dns.servers = body[ATTR_SERVERS]
self.sys_create_task(self.sys_plugins.dns.restart())
self.sys_plugins.dns.save_data()
@api_process
async def stats(self, request: web.Request) -> Dict[str, Any]:
"""Return resource information."""
stats = await self.sys_plugins.dns.stats()
return {
ATTR_CPU_PERCENT: stats.cpu_percent,
ATTR_MEMORY_USAGE: stats.memory_usage,
ATTR_MEMORY_LIMIT: stats.memory_limit,
ATTR_MEMORY_PERCENT: stats.memory_percent,
ATTR_NETWORK_RX: stats.network_rx,
ATTR_NETWORK_TX: stats.network_tx,
ATTR_BLK_READ: stats.blk_read,
ATTR_BLK_WRITE: stats.blk_write,
}
@api_process
async def update(self, request: web.Request) -> None:
"""Update DNS plugin."""
body = await api_validate(SCHEMA_VERSION, request)
version = body.get(ATTR_VERSION, self.sys_plugins.dns.latest_version)
if version == self.sys_plugins.dns.version:
raise APIError(f"Version {version} is already in use")
await asyncio.shield(self.sys_plugins.dns.update(version))
@api_process_raw(CONTENT_TYPE_BINARY)
def logs(self, request: web.Request) -> Awaitable[bytes]:
"""Return DNS Docker logs."""
return self.sys_plugins.dns.logs()
@api_process
def restart(self, request: web.Request) -> Awaitable[None]:
"""Restart CoreDNS plugin."""
return asyncio.shield(self.sys_plugins.dns.restart())
@api_process
def reset(self, request: web.Request) -> Awaitable[None]:
"""Reset CoreDNS plugin."""
return asyncio.shield(self.sys_plugins.dns.reset())