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。
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# This file is part of the sos project: https://github.com/sosreport/sos
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# version 2 of the GNU General Public License.
#
# See the LICENSE file in the source distribution for further information.
import json
from http.client import HTTPResponse
from typing import Any
from urllib import request
from urllib.error import URLError
from sos.report.plugins import Plugin, IndependentPlugin, PluginOpt
class GCP(Plugin, IndependentPlugin):
short_desc = 'Google Cloud Platform'
plugin_name = 'gcp'
profiles = ('virt',)
option_list = [
PluginOpt('keep-pii', default=False,
desc="Stop the plugin from removing PIIs like project name "
"or organization ID from the metadata retrieved from "
"Metadata server.")
]
METADATA_ROOT = "http://metadata.google.internal/computeMetadata/v1/"
METADATA_QUERY = "http://metadata.google.internal/computeMetadata/v1/" \
"?recursive=true"
REDACTED = "[--REDACTED--]"
metadata = None
# A line we will be looking for in the dmesg output. If it's there,
# that means we're running on a Google Cloud Compute instance.
GOOGLE_DMI = "DMI: Google Google Compute Engine/Google " \
"Compute Engine, BIOS Google"
def check_enabled(self):
"""
Checks if this plugin should be executed at all. In this case, it
will check the `dmesg` command output to see if the system is
running on a Google Cloud Compute instance.
"""
dmesg = self.exec_cmd("dmesg")
if dmesg['status'] != 0:
return False
return self.GOOGLE_DMI in dmesg['output']
def setup(self):
"""
Collect the following info:
* Metadata from the Metadata server
* `gcloud auth list` output
* Any google services output from journal
"""
# Capture gcloud auth list
self.add_cmd_output("gcloud auth list", tags=['gcp'])
# Add journal entries
self.add_journal(units="google*", tags=['gcp'])
def collect(self):
# Get and store Metadata
with self.collection_file('metadata.json', tags=['gcp']) as mfile:
try:
self.metadata = self.get_metadata()
self.scrub_metadata()
mfile.write(json.dumps(self.metadata, indent=4))
except RuntimeError as err:
mfile.write(str(err))
def get_metadata(self) -> dict:
"""
Retrieves metadata from the Metadata Server and transforms it into a
dictionary object.
"""
response = self._query_address(self.METADATA_QUERY)
response_body = response.read().decode()
return json.loads(response_body)
@staticmethod
def _query_address(url: str) -> HTTPResponse:
"""
Query the given url address with headers required by Google Metadata
Server.
"""
try:
req = request.Request(url, headers={'Metadata-Flavor': 'Google'})
with request.urlopen(req) as response:
if response.code != 200:
raise RuntimeError(
f"Failed to communicate with Metadata Server "
f"(code: {response.code}): " +
response.read().decode())
return response
except URLError as err:
raise RuntimeError(
"Failed to communicate with Metadata Server: " + str(err)) \
from err
def scrub_metadata(self):
"""
Remove all PII information from metadata, unless a keep-pii option
is specified.
Note: PII information collected by this plugin, like
project number, account names etc. might be required by Google
Cloud Support for faster issue resolution.
"""
if self.get_option('keep-pii'):
return
project_id = self.metadata['project']['projectId']
project_number_int = self.metadata['project']['numericProjectId']
project_number = str(project_number_int)
def scrub(data: Any) -> Any:
if isinstance(data, dict):
if 'token' in data:
# Data returned for recursive query shouldn't contain
# tokens, but you can't be too careful.
data['token'] = self.REDACTED
return {scrub(k): scrub(v) for k, v in data.items()}
if isinstance(data, list):
return [scrub(value) for value in data]
if isinstance(data, str):
return data.replace(project_number, self.REDACTED)\
.replace(project_id, self.REDACTED)
if isinstance(data, int):
return self.REDACTED if data == project_number_int else data
return data
self.metadata = scrub(self.metadata)
self.safe_redact_key(self.metadata['project']['attributes'],
'ssh-keys')
self.safe_redact_key(self.metadata['project']['attributes'],
'sshKeys')
@classmethod
def safe_redact_key(cls, dict_obj: dict, key: str):
""" Redact keys """
if key in dict_obj:
dict_obj[key] = cls.REDACTED