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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# Copyright (C) 2015 Red Hat, Inc. Neependra Khare <nkhare@redhat.com>
# Copyright (C) 2015 Red Hat, Inc. Bryn M. Reeves <bmr@redhat.com>

# 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.

from sos.report.plugins import Plugin, RedHatPlugin


class Etcd(Plugin, RedHatPlugin):
    """The etcd plugin collects information from the etcd key-value store. It
    is primarily used by Kubernetes/OpenShift clusters and is often run inside
    a container within the cluster.

    Collections will default to executing within an `etcdctl` container, if one
    is present, and only execute on the host if such a container is not
    currently running. The `etcdctl` name preference is adopted from OpenShift
    Container Platform deployments.

    This plugin is written for etcd v3 and later.
    """

    short_desc = 'etcd plugin'

    plugin_name = 'etcd'
    packages = ('etcd',)
    profiles = ('container', 'system', 'services', 'cluster')
    files = ('/etc/etcd/etcd.conf',)
    containers = ('etcdctl', 'etcd')
    services = ('etcd',)

    def setup(self):

        etcd_con = None
        for con in self.containers:
            if self.get_container_by_name(con):
                etcd_con = con
                break

        self.add_file_tags({
            '/etc/etcd/etcd.conf': 'etcd_conf'
        })

        self.add_forbidden_path([
            '/etc/etcd/ca',
            '/etc/etcd/*.key'
        ])

        self.add_dir_listing('/var/lib/etcd/', container=etcd_con,
                             recursive=True)
        self.add_copy_spec('/etc/etcd', container=etcd_con)

        subcmds = [
           'version',
           'member list',
           'alarm list',
           'endpoint status',
           'endpoint health'
        ]

        self.add_cmd_output(
            [f"etcdctl {sub}" for sub in subcmds],
            container=etcd_con
        )

# vim: et ts=5 sw=4

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