anti
2a030bf3a9
Adds per-topology compose generation (one Docker bridge network per LAN, multi-homed bridge deckies, ip_forward sysctl for L3 forwarders) plus async deploy_topology/teardown_topology in the engine. Leaf-first teardown via BFS-named LAN reverse sort; partial-state safe on failure.
103 lines
3.1 KiB
Python
103 lines
3.1 KiB
Python
"""MazeNET compose-generator + teardown-order tests."""
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from __future__ import annotations
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import pytest
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from decnet.engine.deployer import _teardown_order
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from decnet.topology.compose import (
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_container_name,
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_network_name,
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generate_topology_compose,
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)
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from decnet.topology.config import TopologyConfig
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from decnet.topology.generator import generate
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from decnet.topology.persistence import hydrate, persist
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from decnet.web.db.factory import get_repository
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def _cfg(**kw) -> TopologyConfig:
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base = dict(
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name="cmp",
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depth=2,
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branching_factor=2,
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deckies_per_lan_min=1,
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deckies_per_lan_max=1,
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cross_edge_probability=0.0,
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randomize_services=False,
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services_explicit=["ssh"],
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seed=9,
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)
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base.update(kw)
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return TopologyConfig(**base)
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@pytest.fixture
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async def repo(tmp_path):
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r = get_repository(db_path=str(tmp_path / "compose.db"))
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await r.initialize()
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return r
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@pytest.mark.anyio
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async def test_compose_has_one_network_per_lan(repo):
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plan = generate(_cfg())
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tid = await persist(repo, plan)
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hydrated = await hydrate(repo, tid)
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data = generate_topology_compose(hydrated)
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assert set(data["networks"].keys()) == {
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_network_name(tid, lan.name) for lan in plan.lans
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}
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for net in data["networks"].values():
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assert net["external"] is True
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@pytest.mark.anyio
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async def test_compose_multi_home_bridge_decky(repo):
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plan = generate(_cfg())
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tid = await persist(repo, plan)
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hydrated = await hydrate(repo, tid)
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data = generate_topology_compose(hydrated)
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# Every bridge decky (multi-homed) must list ≥2 networks in its base.
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for decky in hydrated["deckies"]:
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cfg = decky["decky_config"]
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base = data["services"][cfg["name"]]
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assert base["container_name"] == _container_name(tid, cfg["name"])
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assert len(base["networks"]) == len(cfg["ips_by_lan"])
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for lan_name, ip in cfg["ips_by_lan"].items():
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net_key = _network_name(tid, lan_name)
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assert base["networks"][net_key]["ipv4_address"] == ip
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@pytest.mark.anyio
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async def test_compose_forwards_l3_sets_sysctl(repo):
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# Force every bridge to forward L3, then assert at least one base has it.
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plan = generate(_cfg(bridge_forward_probability=1.0))
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tid = await persist(repo, plan)
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hydrated = await hydrate(repo, tid)
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data = generate_topology_compose(hydrated)
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forwarders = [
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d for d in hydrated["deckies"]
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if d["decky_config"].get("forwards_l3")
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]
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assert forwarders, "expected at least one forwarding bridge decky"
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for d in forwarders:
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base = data["services"][d["decky_config"]["name"]]
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assert base["sysctls"]["net.ipv4.ip_forward"] == 1
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assert "NET_ADMIN" in base["cap_add"]
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def test_teardown_order_is_leaf_first():
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lans = [
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{"name": "LAN-00"},
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{"name": "LAN-01"},
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{"name": "LAN-02"},
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{"name": "LAN-03"},
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]
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order = _teardown_order(lans)
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assert order == ["LAN-03", "LAN-02", "LAN-01", "LAN-00"]
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# DMZ is last — nothing should be torn down after LAN-00.
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assert order[-1] == "LAN-00"
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