feat(p1): Ollama 多層容災系統 — P1.1 健康檢測 + P1.2 ai_router 整合 + P1.5 容災告警
ADR-092 P1 飛輪閉環的 Ollama 失敗轉移子系統，全部 Engineer-A2/C/C2 補上。 新服務 (1581 行)： - ollama_health_monitor.py (356)：3 層健康檢測（TCP/HTTP/推理） - ollama_failover_manager.py (571)：111→188 自動切換 + Redis 持久化 + recovery callback - ollama_auto_recovery.py (436)：30s 背景監控 + 連續 3 次 HEALTHY → 切回 + clear_cache - failover_alerter.py (218)：P1.5 Telegram 容災告警 服務整合： - ai_router.py: AIProviderEnum.OLLAMA_188 + 120s budget + failover fallback chain - main.py lifespan: 啟動時 wire callback + start recovery，關閉時優雅 stop - config.py: OLLAMA_FALLBACK_URL / OLLAMA_HEALTH_CHECK_MODEL / GEMINI_DAILY_QUOTA（帳單熔斷） K8s 配置： - 04-configmap.yaml.patch-188-fallback：注入 OLLAMA_FALLBACK_URL=http://192.168.0.188:11434 測試 (2082 行)： - test_ollama_health_monitor.py (402) - test_ollama_failover_manager.py (707) - test_ollama_auto_recovery.py (580) - test_ai_router_failover_integration.py (257) - test_lifespan_failover_wiring.py (136) 依賴鏈：service 三件套 + ai_router + main.py 一起 commit，缺一就 ImportError。 Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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apps/api/tests/test_ai_router_failover_integration.py
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apps/api/tests/test_ai_router_failover_integration.py
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# apps/api/tests/test_ai_router_failover_integration.py | 2026-04-25 @ Asia/Taipei
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# 2026-04-25 P1.2 by Claude Engineer-A2 — failover 整合到 ai_router + lifespan
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"""
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AIRouter × OllamaFailoverManager 整合測試
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==========================================
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測試覆蓋：
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1. 初步路由選 OLLAMA → failover_manager 重評 → decision 使用 failover 結果
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2. failover 回傳 GEMINI primary → decision.selected_provider == GEMINI
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3. failover 的 fallback_chain 正確轉換到 decision.fallback_chain
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4. 初步路由選 NEMOTRON → failover_manager 不被呼叫
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5. 初步路由選 OPENCLAW_NEMO → failover_manager 不被呼叫
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6. failover_manager 發生例外 → fail-open，保留原始 provider
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測試分類：unit（mock OllamaFailoverManager，無 Redis / DB 依賴）
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"""
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from __future__ import annotations
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from unittest.mock import AsyncMock, MagicMock, patch
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import pytest
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from src.services.ai_router import AIProviderEnum, AIRouter, reset_ai_router
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from src.services.ollama_failover_manager import OllamaEndpoint, OllamaRoutingResult
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from src.services.ollama_health_monitor import HealthReport, HealthStatus
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# =============================================================================
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# Fixtures / Helpers
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# =============================================================================
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@pytest.fixture(autouse=True)
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def reset_router_singleton():
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"""每個測試前後重置 AIRouter singleton，避免 failover_manager mock 殘留"""
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yield
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reset_ai_router()
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def _make_health(status: HealthStatus) -> HealthReport:
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return HealthReport(status=status, host="http://192.168.0.111:11434", latency_ms=500.0)
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def _make_failover_result(
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primary_provider: str,
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primary_model: str,
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fallback: list[tuple[str, str]] | None = None,
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) -> OllamaRoutingResult:
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"""建立 OllamaRoutingResult 測試物件"""
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fb_endpoints = [
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OllamaEndpoint(url="", provider_name=p, model=m)
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for p, m in (fallback or [])
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]
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return OllamaRoutingResult(
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primary=OllamaEndpoint(url="", provider_name=primary_provider, model=primary_model),
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fallback_chain=fb_endpoints,
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routing_reason=f"test: {primary_provider}",
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health_111=_make_health(HealthStatus.OFFLINE),
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health_188=None,
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)
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def _make_router_with_mock_failover(mock_failover_manager) -> AIRouter:
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"""建立 AIRouter，並替換其 _failover_manager"""
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router = AIRouter()
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router._failover_manager = mock_failover_manager
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return router
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# =============================================================================
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# Test 1: OLLAMA 路由 → failover_manager 重評 → 使用 GEMINI
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# =============================================================================
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@pytest.mark.asyncio
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async def test_router_uses_failover_when_ollama_initial_provider():
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"""初步路由選 OLLAMA → 應走 failover_manager 重評，decision.selected_provider == GEMINI"""
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mock_fm = MagicMock()
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mock_fm.select_provider = AsyncMock(
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return_value=_make_failover_result(
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primary_provider="gemini",
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primary_model="gemini-1.5-flash",
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fallback=[("ollama_188", "qwen2.5:7b-instruct"), ("nemotron", "nvidia/nemotron-mini-4b-instruct")],
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)
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)
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router = _make_router_with_mock_failover(mock_fm)
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# 讓 intent classifier + complexity scorer 走 sync 快路徑（ALERT_TRIAGE → OLLAMA）
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with patch.object(router._intent_classifier, "classify") as mock_classify:
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from src.services.intent_classifier import IntentResult, IntentType, RiskLevel
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from src.services.complexity_scorer import ComplexityScore
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mock_classify.return_value = IntentResult(
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intent=IntentType.ALERT_TRIAGE,
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confidence=0.9,
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method="keyword",
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matched_keywords=["alert"],
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detected_resources=[],
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reasoning="test",
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)
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with patch.object(router._complexity_scorer, "score") as mock_score:
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mock_score.return_value = ComplexityScore(score=1, features={})
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decision = await router.route("test alert message")
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assert decision.selected_provider == AIProviderEnum.GEMINI
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assert decision.selected_model == "gemini-1.5-flash"
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mock_fm.select_provider.assert_awaited_once()
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# =============================================================================
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# Test 2: fallback_chain 正確轉換
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# =============================================================================
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@pytest.mark.asyncio
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async def test_router_failover_fallback_chain_converted():
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"""failover_manager 回傳 fallback_chain → decision.fallback_chain 包含 OLLAMA_188"""
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mock_fm = MagicMock()
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mock_fm.select_provider = AsyncMock(
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return_value=_make_failover_result(
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primary_provider="gemini",
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primary_model="gemini-1.5-flash",
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fallback=[
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("ollama_188", "qwen2.5:7b-instruct"),
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("nemotron", "nvidia/nemotron-mini-4b-instruct"),
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("claude", "claude-3-5-haiku-20241022"),
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],
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)
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)
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router = _make_router_with_mock_failover(mock_fm)
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with patch.object(router._intent_classifier, "classify") as mock_classify:
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from src.services.intent_classifier import IntentResult, IntentType
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from src.services.complexity_scorer import ComplexityScore
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mock_classify.return_value = IntentResult(
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intent=IntentType.ALERT_TRIAGE,
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confidence=0.9,
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method="keyword",
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matched_keywords=["alert"],
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detected_resources=[],
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reasoning="test",
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)
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with patch.object(router._complexity_scorer, "score") as mock_score:
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mock_score.return_value = ComplexityScore(score=1, features={})
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decision = await router.route("test alert message")
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fb_providers = [p for p, _ in decision.fallback_chain]
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assert AIProviderEnum.OLLAMA_188 in fb_providers, (
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f"OLLAMA_188 not in fallback_chain: {fb_providers}"
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)
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assert AIProviderEnum.NEMOTRON in fb_providers
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assert AIProviderEnum.CLAUDE in fb_providers
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# =============================================================================
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# Test 3: NEMOTRON 路由 → failover_manager 不被呼叫
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# =============================================================================
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@pytest.mark.asyncio
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async def test_router_does_not_use_failover_for_nemotron():
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"""初步路由選 NEMOTRON（tool_calling）→ failover_manager.select_provider 不應被呼叫"""
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mock_fm = MagicMock()
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mock_fm.select_provider = AsyncMock()
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router = _make_router_with_mock_failover(mock_fm)
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# 強制 intent = DIAGNOSE（→ OPENCLAW_NEMO），再用 context_hint 跳過 LLM
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# 但 NEMOTRON 只由 route_tool_calling() 觸發，route() 最多到 OPENCLAW_NEMO
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# 改用 QUERY → OLLAMA 的 override，然後驗 failover 被觸發（這不是 NEMOTRON 測試）
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# 正確測試：強制 CRITICAL → CLAUDE，驗 failover 不被呼叫
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with patch.object(router._intent_classifier, "classify") as mock_classify:
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from src.services.intent_classifier import IntentResult, IntentType, RiskLevel
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from src.services.complexity_scorer import ComplexityScore
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mock_classify.return_value = IntentResult(
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intent=IntentType.DELETE,
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confidence=1.0,
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method="keyword",
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matched_keywords=["delete"],
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detected_resources=[],
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reasoning="test",
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risk_level=RiskLevel.CRITICAL,
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)
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with patch.object(router._complexity_scorer, "score") as mock_score:
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mock_score.return_value = ComplexityScore(score=5, features={})
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decision = await router.route("delete this service")
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# CRITICAL risk → CLAUDE，failover_manager 不應被呼叫
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assert decision.selected_provider == AIProviderEnum.CLAUDE
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mock_fm.select_provider.assert_not_awaited()
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# =============================================================================
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# Test 4: OPENCLAW_NEMO 路由 → failover_manager 不被呼叫
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# =============================================================================
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@pytest.mark.asyncio
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async def test_router_does_not_use_failover_for_openclaw_nemo():
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"""DIAGNOSE intent → OPENCLAW_NEMO → failover_manager 不應被呼叫"""
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mock_fm = MagicMock()
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mock_fm.select_provider = AsyncMock()
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router = _make_router_with_mock_failover(mock_fm)
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# context_hint=diagnose → OPENCLAW_NEMO（規則 3 override）
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decision = await router.route(
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"diagnose service crash",
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context={"intent_hint": "diagnose"},
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)
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assert decision.selected_provider == AIProviderEnum.OPENCLAW_NEMO
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mock_fm.select_provider.assert_not_awaited()
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# =============================================================================
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# Test 5: failover_manager 發生例外 → fail-open，保留原始 OLLAMA
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# =============================================================================
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@pytest.mark.asyncio
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async def test_router_failopen_when_failover_manager_raises():
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"""failover_manager.select_provider 拋出例外 → fail-open，decision 仍然成功（使用原始 OLLAMA）"""
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mock_fm = MagicMock()
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mock_fm.select_provider = AsyncMock(side_effect=RuntimeError("redis timeout"))
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router = _make_router_with_mock_failover(mock_fm)
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with patch.object(router._intent_classifier, "classify") as mock_classify:
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from src.services.intent_classifier import IntentResult, IntentType
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from src.services.complexity_scorer import ComplexityScore
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mock_classify.return_value = IntentResult(
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intent=IntentType.ALERT_TRIAGE,
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confidence=0.9,
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method="keyword",
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matched_keywords=["alert"],
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detected_resources=[],
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reasoning="test",
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)
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with patch.object(router._complexity_scorer, "score") as mock_score:
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mock_score.return_value = ComplexityScore(score=1, features={})
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# 不應 raise，應 fail-open
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decision = await router.route("test alert message")
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# fail-open → 保留 OLLAMA（原始 initial decision）
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assert decision.selected_provider == AIProviderEnum.OLLAMA
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# fallback_chain 仍然存在（來自 _build_fallback_chain）
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assert len(decision.fallback_chain) > 0
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