Go Vehicle Gateway 验证手册

本文档用于验证 Go 重构运行面：

go-vehicle-gateway：GB32960 TCP、JT808 TCP、宇通 MQTT 接入。
go-history-writer：Kafka RAW 写 TDengine。
go-stat-writer：Kafka RAW 写 MySQL 每日指标。
go-realtime-api：Kafka unified event 写 Redis，并提供实时查询 API。

本地构建验证

cd go/vehicle-gateway
go test ./...
go build ./cmd/gateway
go build ./cmd/history-writer
go build ./cmd/stat-writer
go build ./cmd/realtime-api

镜像构建

cd go/vehicle-gateway
docker build -t vehicle-gateway-go:local .

同一个镜像包含四个二进制：

/app/gateway
/app/history-writer
/app/stat-writer
/app/realtime-api

Portainer 部署

Go 旁路 stack 文件：

deploy/portainer/docker-compose-go.yml

必填变量：

LINGNIU_GO_IMAGE_VERSION=<image-version>
KAFKA_BROKERS=172.17.111.56:9092
TDENGINE_DSN=root:<password>@ws(172.17.111.57:6041)/lingniu_vehicle_ts
MYSQL_DSN=lingniu_vehicle:<password>@tcp(rm-bp179zbv481rnw3e2.mysql.rds.aliyuncs.com:3306)/lingniu_vehicle_data?parseTime=true&charset=utf8mb4,utf8&loc=Asia%2FShanghai
IDENTITY_MYSQL_DSN=${MYSQL_DSN}
VEHICLE_IDENTITY_TABLE=vehicle_identity_binding
REDIS_ADDR=r-bp1u741kij7e51i481.redis.rds.aliyuncs.com:6379
REDIS_PASSWORD=<password>
REDIS_DB=50

宇通 MQTT 开启时再配置：

YUTONG_MQTT_ENABLED=true
YUTONG_MQTT_URI=<mqtt-uri>
YUTONG_MQTT_TOPICS=/ytforward/shln/+
YUTONG_MQTT_CLIENT_ID=lingniu-go-yutong-mqtt
YUTONG_MQTT_USERNAME=<username>
YUTONG_MQTT_PASSWORD=<password>

ECS 进程检查

docker ps --format 'table {{.Names}}\t{{.Status}}\t{{.Ports}}' \
  | egrep 'go-vehicle-gateway|go-history-writer|go-stat-writer|go-realtime-api|NAMES'

ss -lntp | egrep ':(808|32960|20210)\b'

Kafka 验证

优先使用 smoke 脚本做可重复检查：

python3 tools/go_kafka_prod_smoke.py --host 114.55.58.251 --user root --max-lag 100

脚本会检查 vehicle.raw.go.gb32960.v1、vehicle.raw.go.jt808.v1、vehicle.raw.go.yutong-mqtt.v1、vehicle.event.go.unified.v1 是否存在，并汇总 go-history-writer、go-stat-writer、go-realtime-api 的消费 lag。运行环境需要 SSH 免密或已建立可用的 SSH 认证方式。

手工核对命令：

kafka-console-consumer --bootstrap-server 172.17.111.56:9092 \
  --topic vehicle.raw.go.jt808.v1 --max-messages 1 --timeout-ms 10000

kafka-console-consumer --bootstrap-server 172.17.111.56:9092 \
  --topic vehicle.raw.go.gb32960.v1 --max-messages 1 --timeout-ms 10000

kafka-console-consumer --bootstrap-server 172.17.111.56:9092 \
  --topic vehicle.raw.go.yutong-mqtt.v1 --max-messages 1 --timeout-ms 10000

kafka-console-consumer --bootstrap-server 172.17.111.56:9092 \
  --topic vehicle.event.go.unified.v1 --max-messages 1 --timeout-ms 10000

kafka-consumer-groups --bootstrap-server 172.17.111.56:9092 \
  --describe --group go-history-writer

kafka-consumer-groups --bootstrap-server 172.17.111.56:9092 \
  --describe --group go-stat-writer

kafka-consumer-groups --bootstrap-server 172.17.111.56:9092 \
  --describe --group go-realtime-api

TDengine 验证

USE lingniu_vehicle_ts;
SHOW STABLES;
SELECT COUNT(*) FROM raw_frames;
SELECT COUNT(*) FROM vehicle_locations;
SELECT COUNT(*) FROM vehicle_mileage_points;

MySQL 验证

SELECT protocol, metric_key, COUNT(*)
FROM vehicle_daily_metric
GROUP BY protocol, metric_key;

SELECT *
FROM vehicle_daily_metric
WHERE metric_key IN ('daily_mileage_km', 'daily_total_mileage_km')
ORDER BY updated_at DESC
LIMIT 20;

Redis 实时查询

curl -sS 'http://115.29.187.205:20210/api/realtime/vehicles/<vin>'
curl -sS 'http://115.29.187.205:20210/api/realtime/vehicles/<vin>/online'
curl -sS 'http://115.29.187.205:20210/api/realtime/vehicles/<vin>/protocols/JT808'

验收证据

正式切换前至少记录：

一个真实 GB32960 VIN 的 RAW、location、mileage point、Redis snapshot。
一个真实 JT808 VIN/phone 的 RAW、location、mileage point、daily metric、Redis snapshot。
一个真实宇通 MQTT VIN 或 device_id 的 RAW、Redis snapshot。
go-history-writer 和 go-stat-writer 重启后 Kafka offset 能继续推进。

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