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# This file is part of cloud-init. See LICENSE file for license information.
from typing import List, Tuple, Type
from . import (
RendererNotFoundError,
eni,
freebsd,
netbsd,
netplan,
networkd,
openbsd,
renderer,
sysconfig,
)
NAME_TO_RENDERER = {
"eni": eni,
"freebsd": freebsd,
"netbsd": netbsd,
"netplan": netplan,
"networkd": networkd,
"openbsd": openbsd,
"sysconfig": sysconfig,
}
DEFAULT_PRIORITY = [
"eni",
"sysconfig",
"netplan",
"freebsd",
"netbsd",
"openbsd",
"networkd",
]
def search(
priority=None, target=None, first=False
) -> List[Tuple[str, Type[renderer.Renderer]]]:
if priority is None:
priority = DEFAULT_PRIORITY
available = NAME_TO_RENDERER
unknown = [i for i in priority if i not in available]
if unknown:
raise ValueError(
"Unknown renderers provided in priority list: %s" % unknown
)
found = []
for name in priority:
render_mod = available[name]
if render_mod.available(target):
cur = (name, render_mod.Renderer)
if first:
return [cur]
found.append(cur)
return found
def select(priority=None, target=None) -> Tuple[str, Type[renderer.Renderer]]:
found = search(priority, target=target, first=True)
if not found:
if priority is None:
priority = DEFAULT_PRIORITY
tmsg = ""
if target and target != "/":
tmsg = " in target=%s" % target
raise RendererNotFoundError(
"No available network renderers found%s. Searched through list: %s"
% (tmsg, priority)
)
return found[0]
# vi: ts=4 expandtab
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