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import argparse
import sys
from typing import List, Tuple, Type
from knot_resolver_manager.cli.command import Command, CommandArgs, CompWords, register_command
from knot_resolver_manager.utils.requests import request
@register_command
class ReloadCommand(Command):
def __init__(self, namespace: argparse.Namespace) -> None:
super().__init__(namespace)
@staticmethod
def register_args_subparser(
subparser: "argparse._SubParsersAction[argparse.ArgumentParser]",
) -> Tuple[argparse.ArgumentParser, "Type[Command]"]:
reload = subparser.add_parser(
"reload",
help="Tells the resolver to reload YAML configuration file."
" Old processes are replaced by new ones (with updated configuration) using rolling restarts."
" So there will be no DNS service unavailability during reload operation.",
)
return reload, ReloadCommand
@staticmethod
def completion(args: List[str], parser: argparse.ArgumentParser) -> CompWords:
return {}
def run(self, args: CommandArgs) -> None:
response = request(args.socket, "POST", "reload")
if response.status != 200:
print(response, file=sys.stderr)
sys.exit(1)
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