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https://github.com/ansible-collections/community.docker.git
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6ad4bfcd40
* Add typing to Docker Stack modules. Clean modules up. * Add typing to Docker Swarm modules. * Add typing to unit tests. * Add more typing. * Add ignore.txt entries.
138 lines
4.3 KiB
Python
138 lines
4.3 KiB
Python
# This code is part of the Ansible collection community.docker, but is an independent component.
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# This particular file, and this file only, is based on the Docker SDK for Python (https://github.com/docker/docker-py/)
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#
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# Copyright (c) 2016-2022 Docker, Inc.
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#
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# It is licensed under the Apache 2.0 license (see LICENSES/Apache-2.0.txt in this collection)
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# SPDX-License-Identifier: Apache-2.0
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# Note that this module util is **PRIVATE** to the collection. It can have breaking changes at any time.
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# Do not use this from other collections or standalone plugins/modules!
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from __future__ import annotations
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import re
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import typing as t
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if t.TYPE_CHECKING:
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from collections.abc import Collection, Sequence
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PORT_SPEC = re.compile(
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"^" # Match full string
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"(" # External part
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r"(\[?(?P<host>[a-fA-F\d.:]+)\]?:)?" # Address
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r"(?P<ext>[\d]*)(-(?P<ext_end>[\d]+))?:" # External range
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")?"
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r"(?P<int>[\d]+)(-(?P<int_end>[\d]+))?" # Internal range
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"(?P<proto>/(udp|tcp|sctp))?" # Protocol
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"$" # Match full string
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)
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def add_port_mapping(
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port_bindings: dict[str, list[str | tuple[str, str | None] | None]],
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internal_port: str,
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external: str | tuple[str, str | None] | None,
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) -> None:
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if internal_port in port_bindings:
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port_bindings[internal_port].append(external)
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else:
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port_bindings[internal_port] = [external]
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def add_port(
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port_bindings: dict[str, list[str | tuple[str, str | None] | None]],
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internal_port_range: list[str],
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external_range: list[str] | list[tuple[str, str | None]] | None,
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) -> None:
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if external_range is None:
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for internal_port in internal_port_range:
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add_port_mapping(port_bindings, internal_port, None)
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else:
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for internal_port, external_port in zip(internal_port_range, external_range):
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# mypy loses the exact type of eternal_port elements for some reason...
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add_port_mapping(port_bindings, internal_port, external_port) # type: ignore
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def build_port_bindings(
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ports: Collection[str],
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) -> dict[str, list[str | tuple[str, str | None] | None]]:
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port_bindings: dict[str, list[str | tuple[str, str | None] | None]] = {}
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for port in ports:
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internal_port_range, external_range = split_port(port)
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add_port(port_bindings, internal_port_range, external_range)
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return port_bindings
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def _raise_invalid_port(port: str) -> t.NoReturn:
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raise ValueError(
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f'Invalid port "{port}", should be '
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"[[remote_ip:]remote_port[-remote_port]:]"
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"port[/protocol]"
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)
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@t.overload
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def port_range(
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start: str,
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end: str | None,
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proto: str,
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randomly_available_port: bool = False,
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) -> list[str]: ...
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@t.overload
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def port_range(
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start: str | None,
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end: str | None,
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proto: str,
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randomly_available_port: bool = False,
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) -> list[str] | None: ...
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def port_range(
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start: str | None,
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end: str | None,
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proto: str,
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randomly_available_port: bool = False,
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) -> list[str] | None:
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if start is None:
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return start
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if end is None:
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return [f"{start}{proto}"]
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if randomly_available_port:
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return [f"{start}-{end}{proto}"]
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return [f"{port}{proto}" for port in range(int(start), int(end) + 1)]
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def split_port(
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port: str | int,
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) -> tuple[list[str], list[str] | list[tuple[str, str | None]] | None]:
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port = str(port)
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match = PORT_SPEC.match(port)
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if match is None:
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_raise_invalid_port(port)
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parts = match.groupdict()
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host: str | None = parts["host"]
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proto: str = parts["proto"] or ""
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int_p: str = parts["int"]
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ext_p: str = parts["ext"]
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internal: list[str] = port_range(int_p, parts["int_end"], proto) # type: ignore
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external = port_range(ext_p or None, parts["ext_end"], "", len(internal) == 1)
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if host is None:
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if (external is not None and len(internal) != len(external)) or ext_p == "":
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raise ValueError("Port ranges don't match in length")
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return internal, external
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external_or_none: Sequence[str | None]
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if not external:
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external_or_none = [None] * len(internal)
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else:
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external_or_none = external
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if len(internal) != len(external_or_none):
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raise ValueError("Port ranges don't match in length")
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return internal, [(host, ext_port) for ext_port in external_or_none]
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