* add staging ios app build script * feat(api): add OpenTelemetry LGTM stack for local observability Wire OTel traces, metrics, and logs through a collector to Tempo, Prometheus, and Loki, with custom LLM instrumentation, dev compose overlay, Grafana provisioning, env templates, and development.sh auto-start. * feat: expand observability, harden dev tooling, and fix expo staging UX Add business and LLM Prometheus metrics with Grafana dashboards, alerting, and a metrics verification script. Wire telemetry through adapters and core LLM paths, and document the local LGTM workflow. Fix development.sh for macOS bash 3.2, open Grafana and eval-web in Chrome, and repair eval-web auto-open (unbound EVAL_WEB_BROWSER_SCHEDULED). Merge internal-eval into the main dev script with improved compose handling. Require EXPO_PUBLIC_* at build time, improve iOS HTTP ATS for staging IPs, show memoir empty state instead of load errors when no chapters exist, and add jest env setup plus chapter list response normalization. * chore: enable Grafana Assistant Cursor plugin * fix: memoir empty state and repair withdrawn 0020_chapters_book_id stamp Show empty memoir UI when the chapter list succeeds with no items; treat auth/404 as non-fatal. Extend alembic revision repair so local dev DBs stamped with the removed 0020_chapters_book_id migration can roll back and upgrade to 0019. --------- Co-authored-by: Kevin <kevin@brighteng.org> Co-authored-by: Cursor <cursoragent@cursor.com>
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可观测性(OpenTelemetry + Grafana LGTM)
本地开发使用 OpenTelemetry 采集 traces / metrics / logs,经 OTel Collector 写入 Tempo / Prometheus / Loki,在 Grafana 统一查看。
配置写在 .env(由 .env.development 经 development.sh 同步,或从 .env.example 复制),app.core.config.settings 启动时自动读取,无需在 shell 里 export OTEL_*。
启动栈
在 api/ 目录:
# 1. 数据库与 Redis
docker compose -f docker-compose.dev.yml up -d
# 2. 可观测性(需已存在 life-echo-dev 网络;端口来自 .env 或下列默认)
docker compose -f docker-compose.dev.yml -f docker-compose.observability.yml up -d
| 服务 | 默认宿主机地址 | compose 变量 |
|---|---|---|
| Grafana | http://127.0.0.1:48300 (admin / admin) | GRAFANA_HOST_PORT |
| Prometheus | http://127.0.0.1:49090 | PROMETHEUS_HOST_PORT |
| OTLP gRPC | http://127.0.0.1:48317 | OTEL_GRPC_HOST_PORT |
| OTLP HTTP | http://127.0.0.1:48318 | OTEL_HTTP_HOST_PORT |
| Collector health | http://127.0.0.1:48333 | OTEL_COLLECTOR_HEALTH_HOST_PORT |
容器内部仍使用标准端口(如 Collector 4317);仅宿主机映射使用 48xxx 段,与 Postgres 48291、Redis 48307 同一风格。
预置 Dashboard(Life Echo 文件夹):
| Dashboard | 用途 |
|---|---|
| Life Echo Overview | API RED、LLM 摘要、依赖延迟 |
| Life Echo LLM | call_type / agent / tokens、outcome 分布 |
| Life Echo Business | 回忆录阶段、WS/ASR/TTS、Celery 业务 span |
| Life Echo Logs | Loki 按 event / trace_id 检索 |
启用应用导出
在 .env.example 已给出本地默认值,同步到 .env 即可,例如:
OTEL_ENABLED=true
OTEL_EXPORTER_OTLP_ENDPOINT=http://localhost:48317
OTEL_TRACES_SAMPLER=always_on
OTEL_SERVICE_NAME=life-echo-api
推荐与全栈一并启动(./development.sh 在 .env 里 OTEL_ENABLED=true 时会起 observability compose,并默认打开 Grafana 浏览器标签):
cd api
./development.sh
仅手动起 API(不自动开 Grafana):
cd api
uv run uvicorn app.main:app --reload --host 0.0.0.0 --port 8000
Celery worker 同一 .env;未设 OTEL_SERVICE_NAME 时 worker 默认为 life-echo-celery-worker。
若 API 跑在 Docker compose 里,应设 OTEL_EXPORTER_OTLP_ENDPOINT=http://otel-collector:4317(服务名 + 容器内端口),而不是 localhost。
不需要可观测性时:.env 中 OTEL_ENABLED=false(或未启动 observability compose)。
采集内容
| 类型 | 来源 |
|---|---|
| HTTP | FastAPI 自动 instrumentation(/health 排除) |
| DB | SQLAlchemy |
| Redis | redis-py |
| 出站 HTTP | httpx(DeepSeek 等) |
| Celery | 任务 span + W3C trace 传播 |
| LLM | llm_telemetry(LangChain / DeepSeek / llm_call)+ llm.call.* / llm.tokens.* metrics |
| 业务 | business_telemetry:WS 回合、回忆录 phase、ASR/TTS、支付等子 span |
| 日志 | loguru patcher 注入 trace_id;Promtail 解析 event / tid=;可选 LOG_JSON_FILE JSON sink |
日志字段:request_id、trace_id、span_id。HTTP 由中间件 contextualize;Celery / 后台由 loguru patcher 从当前 OTel span 合并,无需经过 HTTP 中间件。
常用排查
- API 慢:Grafana → Tempo,按
service.name=life-echo-api查 trace;看 DB / httpx /llm.*/conversation.ws.*子 span。 - LLM 慢:Life Echo LLM Dashboard,或 Loki:
{compose_service=~".+"} |= "event=llm_json_call"。 - 回忆录卡阶段:Tempo 搜
memoir.phase1/memoir.phase2/memoir.story_pipeline.*;Life Echo Business Dashboard 看business_operation_duration_milliseconds。 - 日志 ↔ Trace:在 Tempo 复制
trace_id→ Loki:{compose_service=~".+"} |= "tid=<前12位>"(控制台短格式);Promtail 将trace_id写入 structured metadata(非高基数 label)。 - Celery 堆积:Tempo 过滤
life-echo-celery-worker;Lokievent=celery_task_failed。 - 无数据:
.env中OTEL_ENABLED=true、OTEL_EXPORTER_OTLP_ENDPOINT端口与OTEL_GRPC_HOST_PORT一致;Collector healthhttp://127.0.0.1:48333;Prometheus targetotel-collector:8889UP。
LOG_JSON_FILE 与 Promtail
- 默认:loguru 人类可读行 → Docker stdout → Promtail regex 提取
tid/event/duration_ms;trace_id进 structured metadata,不作为 Loki label。 - 可选:
LOG_JSON_FILE=/path/to/app.jsonl开启 JSON sink(serialize=true),便于与 OTLP logs 或自建采集对齐;与 Promtail 可并存(同一容器 stdout 仍走 regex)。
采样(staging/prod 第二阶段)
| 环境 | 建议 |
|---|---|
| development | OTEL_TRACES_SAMPLER=always_on |
| staging/production | OTEL_TRACES_SAMPLER=parentbased_traceidratio,OTEL_TRACES_SAMPLER_ARG=0.1 |
关闭 telemetry:OTEL_ENABLED=false,无 exporter 开销。
Prometheus 指标名(OTel → Prometheus)
| OTel 仪器 | Prometheus 系列(histogram) |
|---|---|
llm.call.duration (ms) |
llm_call_duration_milliseconds_bucket |
business.operation.duration (ms) |
business_operation_duration_milliseconds_bucket |
http.server.request.duration (s) |
http_server_request_duration_seconds_bucket |
db.client.operation.duration (s) |
db_client_operation_duration_seconds_bucket |
http.client.request.duration (s) |
http_client_request_duration_seconds_bucket |
Counter 示例:llm_call_total、llm_tokens_input_total。
校验脚本(需 observability compose + 有流量):
chmod +x scripts/verify_observability_metrics.sh
./scripts/verify_observability_metrics.sh
验收清单(本地 E2E)
OTEL_ENABLED=true,启动 compose + API + Celery worker- 跑一条 WS 对话;Tempo 可见
conversation.ws.process_turn、llm.chat_invoke - 触发 memoir phase1;Tempo 可见
memoir.phase1.*、memoir.story_pipeline.* - Prometheus:
call_typelabel 存在;真实 LLM 后llm_tokens_input_total> 0 - Loki:
|= "tid=<trace前12位>"能查到同次请求日志 ./scripts/verify_observability_metrics.sh通过- Grafana Alerting 页无 provisioning 错误(通知渠道可空)
配置目录
deploy/observability/:Collector、Tempo、Loki、Prometheus、Grafana provisioningdocker-compose.observability.yml:本地 overlay