晋太元中,武陵人捕鱼为业。缘溪行,忘路之远近。忽逢桃花林,夹岸数百步,中无杂树,芳草鲜美,落英缤纷。渔人甚异之,复前行,欲穷其林。 林尽水源,便得一山,山有小口,仿佛若有光。便舍船,从口入。初极狭,才通人。复行数十步,豁然开朗。土地平旷,屋舍俨然,有良田、美池、桑竹之属。阡陌交通,鸡犬相闻。其中往来种作,男女衣着,悉如外人。黄发垂髫,并怡然自乐。 见渔人,乃大惊,问所从来。具答之。便要还家,设酒杀鸡作食。村中闻有此人,咸来问讯。自云先世避秦时乱,率妻子邑人来此绝境,不复出焉,遂与外人间隔。问今是何世,乃不知有汉,无论魏晋。此人一一为具言所闻,皆叹惋。余人各复延至其家,皆出酒食。停数日,辞去。此中人语云:“不足为外人道也。”(间隔 一作:隔绝) 既出,得其船,便扶向路,处处志之。及郡下,诣太守,说如此。太守即遣人随其往,寻向所志,遂迷,不复得路。 南阳刘子骥,高尚士也,闻之,欣然规往。未果,寻病终。后遂无问津者。
|
Server : Apache System : Linux srv.rainic.com 4.18.0-553.47.1.el8_10.x86_64 #1 SMP Wed Apr 2 05:45:37 EDT 2025 x86_64 User : rainic ( 1014) PHP Version : 7.4.33 Disable Function : exec,passthru,shell_exec,system Directory : /lib/python3.6/site-packages/cloudinit/sources/helpers/ |
Upload File : |
import re
from typing import Any, Dict, Optional, Union
from cloudinit import dmi
# dmi data can override
DMI_OVERRIDE_MAP = {
"als": "allow_local_stage",
"ais": "allow_init_stage",
"dhcp": "allow_dhcp",
"v4": "allow_ipv4",
"v6": "allow_ipv6",
"pmp": "preferred_mac_prefixes",
}
def get_dmi_config() -> Dict[str, Union[bool, str]]:
"""
Parses flags from dmi data and updates self.ds_cfg accordingly
"""
dmi_flags = dmi.read_dmi_data("baseboard-serial-number")
ret: Dict[str, Any] = {}
if not dmi_flags:
return ret
# parse the value into individual flags, then set them in our config
# based on the short name lookup table
for key, value, _ in re.findall(r"([a-z0-9]+)=(.*?)(;|$)", dmi_flags):
if key in DMI_OVERRIDE_MAP:
if value in "01":
value = bool(int(value))
elif key == "pmp":
value = value.split(",")
ret[DMI_OVERRIDE_MAP[key]] = value
return ret
def is_on_akamai() -> bool:
"""
Reads the BIOS vendor from dmi data to determine if we are running in the
Akamai Connected Cloud.
"""
vendor = dmi.read_dmi_data("system-manufacturer")
return vendor in ("Linode", "Akamai")
def get_local_instance_id() -> Optional[str]:
"""
Returns the instance id read from dmi data without requiring the metadata
service to be reachable
"""
return dmi.read_dmi_data("system-serial-number")