53 lines
1.6 KiB
Python
53 lines
1.6 KiB
Python
# Copyright (C) 2013-2014 Canonical Ltd.
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#
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# Author: Scott Moser <scott.moser@canonical.com>
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# Author: Blake Rouse <blake.rouse@canonical.com>
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#
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# This file is part of cloud-init. See LICENSE file for license information.
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import abc
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import io
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from typing import Optional
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from cloudinit.net.network_state import NetworkState
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from cloudinit.net.udev import generate_udev_rule
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def filter_by_type(match_type):
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return lambda iface: match_type == iface["type"]
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def filter_by_attr(match_name):
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return lambda iface: (match_name in iface and iface[match_name])
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class Renderer(abc.ABC):
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def __init__(self, config=None):
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pass
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@staticmethod
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def _render_persistent_net(network_state: NetworkState):
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"""Given state, emit udev rules to map mac to ifname."""
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# TODO(harlowja): this seems shared between eni renderer and
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# this, so move it to a shared location.
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content = io.StringIO()
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for iface in network_state.iter_interfaces(filter_by_type("physical")):
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# for physical interfaces write out a persist net udev rule
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if "name" in iface and iface.get("mac_address"):
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driver = iface.get("driver", None)
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content.write(
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generate_udev_rule(
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iface["name"], iface["mac_address"], driver=driver
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)
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)
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return content.getvalue()
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@abc.abstractmethod
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def render_network_state(
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self,
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network_state: NetworkState,
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templates: Optional[dict] = None,
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target=None,
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) -> None:
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"""Render network state."""
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