feat(status): раздел «Статус» — контейнеры, карточка, проверки (#14)

- docker-socket-proxy в Compose (только GET /containers/*), сокет только у него
- app/runtime/docker.py: read-only клиент; видны только контейнеры с меткой
  tgit.managed=true, чужие id отклоняются до запроса
- app/runtime/checks.py: running, health, рестарты за окно, CPU/RAM, ошибки
  в логе, HTTP-проба; у каждой проверки свой таймаут, отчёт всегда полный
- app/runtime/snapshots.py: снапшоты раз в 15 с в container_snapshots
- бот: список с 🟢🟡🔴⚪, карточка, «🩺 Запустить проверки», «🔄 Обновить»
- деплой ставит метки tgit.sha / tgit.deployed_at на контейнер бота
- имя джоба CD без неотрисованного выражения

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/runtime/test_checks.py

@@ -0,0 +1,203 @@
+import asyncio
+import contextlib
+from collections.abc import AsyncIterator
+from datetime import UTC, datetime, timedelta
+
+import httpx
+import pytest
+
+from app.db.models import ContainerSnapshot
+from app.db.session import SessionMaker
+from app.runtime import checks
+from app.runtime.checks import Checker, CheckName, ChecksConfig, Verdict, count_errors, load_checks
+from app.runtime.docker import DockerClient, Light
+from app.runtime.snapshots import SnapshotStore, collect_once, snapshot_loop
+from tests.conftest import ROOT
+from tests.runtime.fake_docker import FakeDocker, now_minus
+
+CFG = load_checks(ROOT / "config")
+
+
+def probe(request: httpx.Request) -> httpx.Response:
+    if request.url.host == "broken":
+        raise httpx.ConnectError("refused", request=request)
+    return httpx.Response(200 if request.url.path == "/health" else 503)
+
+
+@pytest.fixture
+def fake() -> FakeDocker:
+    fake = FakeDocker()
+    fake.add("hello", service="hello", labels={"tgit.health_url": "http://hello:8000/health"})
+    fake.add(
+        "unhealthy", service="unhealthy", health="unhealthy", labels={"tgit.health_url": "http://unhealthy:8000/x"}
+    )
+    fake.add("crashed", state="exited", health=None, exit_code=137, oom=True)
+    return fake
+
+
+@pytest.fixture
+async def docker(fake: FakeDocker) -> AsyncIterator[DockerClient]:
+    async with fake.client() as client:
+        await client.containers()  # the bot always lists before it inspects
+        yield client
+
+
+@pytest.fixture
+def store(sessions: SessionMaker) -> SnapshotStore:
+    return SnapshotStore(sessions)
+
+
+@pytest.fixture
+def checker(docker: DockerClient, store: SnapshotStore) -> Checker:
+    return Checker(docker, store, CFG, httpx.AsyncClient(transport=httpx.MockTransport(probe)))
+
+
+def verdicts(report: checks.ContainerReport) -> dict[CheckName, Verdict]:
+    return {r.name: r.verdict for r in report.results}
+
+
+async def test_config_loads_and_bad_pattern_rejected() -> None:
+    assert CFG.window == 300
+    with pytest.raises(ValueError):
+        ChecksConfig(error_pattern="(unclosed")
+
+
+async def test_healthy_vs_unhealthy_vs_crashed(checker: Checker) -> None:
+    reports = {r.details.name: r for r in await checker.check_all()}
+
+    hello = verdicts(reports["hello"])
+    assert hello[CheckName.RUNNING] is Verdict.OK
+    assert hello[CheckName.HEALTH] is Verdict.OK
+    assert hello[CheckName.HTTP] is Verdict.OK
+    assert hello[CheckName.RESTARTS] is Verdict.SKIP  # no history yet
+    assert reports["hello"].ok
+
+    bad = verdicts(reports["unhealthy"])
+    assert bad[CheckName.HEALTH] is Verdict.FAIL
+    assert bad[CheckName.HTTP] is Verdict.FAIL
+    assert not reports["unhealthy"].ok
+
+    crashed = reports["crashed"]
+    assert verdicts(crashed)[CheckName.RUNNING] is Verdict.FAIL
+    assert "exit 137, OOM" in crashed.results[0].detail
+    assert verdicts(crashed)[CheckName.CPU] is Verdict.SKIP
+    assert crashed.details.light is Light.RED
+
+
+async def test_restarts_compared_with_history(
+    checker: Checker, fake: FakeDocker, docker: DockerClient, store: SnapshotStore
+) -> None:
+    hello = next(c for c in fake.containers.values() if c.name == "hello")
+    assert await collect_once(docker, store, now=datetime.now(UTC) - timedelta(minutes=3)) == 2  # running ones only
+    hello.restart_count = 2
+
+    report = await checker.check(hello.id)
+
+    result = next(r for r in report.results if r.name is CheckName.RESTARTS)
+    assert result.verdict is Verdict.FAIL
+    assert result.detail == "0 → 2"
+
+
+async def test_old_history_outside_window_is_ignored(
+    checker: Checker, fake: FakeDocker, sessions: SessionMaker
+) -> None:
+    hello = next(c for c in fake.containers.values() if c.name == "hello")
+    async with sessions.begin() as s:
+        s.add(
+            ContainerSnapshot(container="hello", at=now_minus(30), restart_count=0, cpu_pct=1, mem_pct=1, health=None)
+        )
+    hello.restart_count = 5
+
+    report = await checker.check(hello.id)
+
+    assert verdicts(report)[CheckName.RESTARTS] is Verdict.SKIP
+
+
+async def test_thresholds_and_log_errors(checker: Checker, fake: FakeDocker) -> None:
+    hello = next(c for c in fake.containers.values() if c.name == "hello")
+    hello.cpu_pct, hello.mem_bytes = 150.0, 250 * 1024 * 1024
+    hello.logs = [
+        (now_minus(20), "Traceback from long ago"),
+        (now_minus(1), "all good"),
+        (now_minus(1), '{"level": "ERROR", "msg": "boom"}'),
+    ]
+
+    report = await checker.check(hello.id)
+
+    v = verdicts(report)
+    assert v[CheckName.CPU] is Verdict.FAIL
+    assert v[CheckName.MEM] is Verdict.FAIL
+    log_result = next(r for r in report.results if r.name is CheckName.LOG_ERRORS)
+    assert log_result.verdict is Verdict.FAIL
+    assert log_result.detail.startswith("1: ")  # the old Traceback is outside the window
+
+
+async def test_broken_or_slow_check_does_not_spoil_report(
+    checker: Checker, fake: FakeDocker, monkeypatch: pytest.MonkeyPatch
+) -> None:
+    async def boom(ctx: checks.Context) -> checks.CheckResult:
+        raise RuntimeError("kaputt")
+
+    async def slow(ctx: checks.Context) -> checks.CheckResult:
+        await asyncio.sleep(10)
+        raise AssertionError
+
+    monkeypatch.setattr(checks, "CHECKS", [(CheckName.HEALTH, boom), (CheckName.HTTP, slow), *checks.CHECKS[:1]])
+    fast = Checker(checker._docker, checker._store, CFG.model_copy(update={"check_timeout": 0.05}), checker._http)
+    hello = next(c for c in fake.containers.values() if c.name == "hello")
+
+    report = await fast.check(hello.id)
+
+    by_name = {r.name: r for r in report.results}
+    assert by_name[CheckName.HEALTH].detail == "RuntimeError: kaputt"
+    assert by_name[CheckName.HTTP].detail == "timeout"
+    assert by_name[CheckName.RUNNING].verdict is Verdict.OK
+
+
+async def test_stats_failure_skips_cpu_and_mem(checker: Checker, fake: FakeDocker) -> None:
+    hello = next(c for c in fake.containers.values() if c.name == "hello")
+    hello.stats_status = 500
+
+    report = await checker.check(hello.id)
+
+    assert verdicts(report)[CheckName.CPU] is Verdict.SKIP
+    assert verdicts(report)[CheckName.RUNNING] is Verdict.OK
+
+
+async def test_http_probe_connection_error(fake: FakeDocker, checker: Checker) -> None:
+    hello = next(c for c in fake.containers.values() if c.name == "hello")
+    hello.labels["tgit.health_url"] = "http://broken/health"
+
+    report = await checker.check(hello.id)
+
+    result = next(r for r in report.results if r.name is CheckName.HTTP)
+    assert (result.verdict, result.detail) == (Verdict.FAIL, "ConnectError")
+
+
+async def test_snapshot_store_latest(docker: DockerClient, store: SnapshotStore) -> None:
+    await collect_once(docker, store, now=now_minus(1))
+    await collect_once(docker, store)
+
+    latest = await store.latest("hello")
+
+    assert latest is not None and latest.cpu_pct == 5.0 and latest.health == "healthy"
+
+
+def test_count_errors_reports_first_hit() -> None:
+    hits, first = count_errors("ok\nERROR one\nERROR two\n", r"ERROR")
+    assert (hits, first) == (2, "ERROR one")
+
+
+async def test_snapshot_loop_survives_docker_outage(
+    fake: FakeDocker, docker: DockerClient, store: SnapshotStore
+) -> None:
+    fake.down = True
+    task = asyncio.create_task(snapshot_loop(docker, store, interval=0.01))
+    await asyncio.sleep(0.05)
+    fake.down = False
+    await asyncio.sleep(0.05)
+    task.cancel()
+    with contextlib.suppress(asyncio.CancelledError):
+        await task
+
+    assert await store.latest("hello") is not None