[Backend] 添加context支持未来接入 APM about bk-iam-saas HOT 10 OPEN

是否放到这个迭代?

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https://github.com/open-telemetry/opentelemetry-go
https://github.com/open-telemetry/opentelemetry-go-contrib/tree/main/instrumentation

• gin: https://github.com/open-telemetry/opentelemetry-go-contrib/blob/main/instrumentation/github.com/gin-gonic/gin/otelgin/example/server.go
• go-redis/cache hit/miss https://blog.uptrace.dev/posts/opentelemetry-metrics-cache-stats.html
• go-redis time
  • https://github.com/go-redis/redis/blob/master/example/otel/main.go
  • https://redis.uptrace.dev/guide/tracing.html#monitoring-go-redis-client

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https://github.com/open-telemetry/opentelemetry-go-contrib/blob/main/instrumentation/github.com/gin-gonic/gin/otelgin/example/server.go

gin middleware, 下一层的需要额外处理

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顺带测试下性能差异

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https://opentelemetry.io/docs/instrumentation/go/libraries/

https://github.com/open-telemetry/opentelemetry-go-contrib/tree/main/instrumentation/github.com/gin-gonic/gin/otelgin/example

https://github.com/open-telemetry/opentelemetry-go-contrib/tree/main/instrumentation

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https://hulkdev.com/2022/04/18/monitoring-go-apps-with-distributed-tracing-and-opentelemetry.html

• gin and zap: https://get.uptrace.dev/opentelemetry/gin-gorm.html#instrumenting-gin
• go redis: https://redis.uptrace.dev/guide/go-redis-monitoring.html#opentelemetry-tracing
• zap https://opentelemetry.uptrace.dev/instrumentations/go-zap.html#installation

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https://github.com/open-telemetry/opentelemetry-go-contrib/blob/d2456f2c66b3c9d2e02e2dd726021fc8b634529e/instrumentation/github.com/gin-gonic/gin/otelgin/gintrace.go#L41

应该使用c.Request.Context() 作为向下传递的 context

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https://github.com/go-redis/redis/tree/v8.11.5/extra/redisotel

redis, 加载hook, 后续每个调用, 第一个参数都需要从 context 传递

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https://github.com/uptrace/opentelemetry-go-extra/tree/main/otelsqlx

sqlx支持, 所有的sql方法调用改为 xxConext方法, 比如: ExecContext

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gorequest 不支持 opentelemetry, 可能需要换一个 http client, 比如: https://github.com/imroc/req

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