Commit f5192526 authored by Dom Sekotill's avatar Dom Sekotill
Browse files

Inspect Docker networks by SHA identitiy

parent a88f7010

behave_utils/docker.py

+22 −6
Original line number Diff line number Diff line
@@ -35,6 +35,7 @@ from typing import TypeVar 
from typing import Union

from typing import overload



from .json import JSONArray

from .json import JSONObject

from .proc import Argument

from .proc import Arguments
@@ -375,6 +376,7 @@ class Network(Item): 


	def __init__(self, name: str|None = None) -> None:

		self._name = name or f"br{token_hex(6)}"

		self._nid: str|None = None



	def __str__(self) -> str:

		return self._name
@@ -409,7 +411,10 @@ class Network(Item): 
		"""

		Return an identifier for the Docker Network

		"""

		return self._name

		if self._nid is None:

			self.create()

		assert self._nid is not None

		return self._nid



	def create(self) -> None:

		"""
@@ -417,16 +422,27 @@ class Network(Item): 
		"""

		subnet = self.get_free_subnet()

		gateway = next(subnet.hosts())

		docker_quiet(

		try:

			self._nid = docker_output(

				"network", "create", self._name,

				f"--subnet={subnet}", f"--gateway={gateway}",

			)

		except CalledProcessError:

			data = exec_io(

				[DOCKER, "network", "inspect", self._name],

				deserialiser=JSONArray.from_string,

			)

			if len(data) == 0:

				raise

			self._nid = data.path("$[0].Id", str)

		assert self._nid is not None



	def destroy(self) -> None:

		"""

		Remove the network

		"""

		docker_quiet("network", "rm", self._name)

		if self._nid:

			docker_quiet("network", "rm", self._nid)



	@classmethod

	def get_free_subnet(cls) -> ipaddress.IPv4Network: