From 217c4705683c9c5770b88edce1a705fe3d05c933 Mon Sep 17 00:00:00 2001 From: Vladimir Mihailenco Date: Sun, 18 Apr 2021 14:49:28 +0300 Subject: [PATCH] extra/redisotel: add readme and example --- extra/redisotel/README.md | 24 +++++ extra/redisotel/example/Makefile | 8 ++ extra/redisotel/example/README.md | 13 +++ extra/redisotel/example/docker-compose.yml | 8 ++ extra/redisotel/example/go.mod | 10 ++ extra/redisotel/example/go.sum | 119 +++++++++++++++++++++ extra/redisotel/example/main.go | 39 +++++++ 7 files changed, 221 insertions(+) create mode 100644 extra/redisotel/README.md create mode 100644 extra/redisotel/example/Makefile create mode 100644 extra/redisotel/example/README.md create mode 100644 extra/redisotel/example/docker-compose.yml create mode 100644 extra/redisotel/example/go.mod create mode 100644 extra/redisotel/example/go.sum create mode 100644 extra/redisotel/example/main.go diff --git a/extra/redisotel/README.md b/extra/redisotel/README.md new file mode 100644 index 0000000..fae4032 --- /dev/null +++ b/extra/redisotel/README.md @@ -0,0 +1,24 @@ +# OpenTelemetry instrumentation for go-redis + +## Installation + +```bash +go get github.com/go-redis/redis/extra/redisotel/v8 +``` + +## Usage + +Tracing is enabled by adding a hook: + +```go +import ( + "github.com/go-redis/redis/v8" + "github.com/go-redis/redis/extra/redisotel" +) + +rdb := rdb.NewClient(&rdb.Options{...}) + +rdb.AddHook(redisotel.NewTracingHook()) +``` + +See [example](example) and [documentation](https://redis.uptrace.dev/tracing/) for more details. diff --git a/extra/redisotel/example/Makefile b/extra/redisotel/example/Makefile new file mode 100644 index 0000000..b986e35 --- /dev/null +++ b/extra/redisotel/example/Makefile @@ -0,0 +1,8 @@ +build: + docker-compose build +up: build + docker-compose up --detach redis-server +down: + docker-compose down +logs: + docker-compose logs redis-server diff --git a/extra/redisotel/example/README.md b/extra/redisotel/example/README.md new file mode 100644 index 0000000..59abcc3 --- /dev/null +++ b/extra/redisotel/example/README.md @@ -0,0 +1,13 @@ +# OpenTelemetry instrumentation for go-redis + +To run this example you need a Redis server. You can start one with Docker: + +```shell +make up +``` + +Then run the example: + +```shell +go run main.go +``` diff --git a/extra/redisotel/example/docker-compose.yml b/extra/redisotel/example/docker-compose.yml new file mode 100644 index 0000000..acbd50d --- /dev/null +++ b/extra/redisotel/example/docker-compose.yml @@ -0,0 +1,8 @@ +version: '3.7' +services: + redis-server: + image: 'bitnami/redis:latest' + environment: + - ALLOW_EMPTY_PASSWORD=yes + ports: + - 6379:6379 diff --git a/extra/redisotel/example/go.mod b/extra/redisotel/example/go.mod new file mode 100644 index 0000000..b621aab --- /dev/null +++ b/extra/redisotel/example/go.mod @@ -0,0 +1,10 @@ +module example + +go 1.16 + +require ( + github.com/go-redis/redis/extra/redisotel/v8 v8.8.2 + go.opentelemetry.io/otel v0.19.0 + go.opentelemetry.io/otel/exporters/stdout v0.19.0 + go.opentelemetry.io/otel/sdk v0.19.0 +) diff --git a/extra/redisotel/example/go.sum b/extra/redisotel/example/go.sum new file mode 100644 index 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0000000..8853ee0 --- /dev/null +++ b/extra/redisotel/example/main.go @@ -0,0 +1,39 @@ +package main + +import ( + "context" + + "github.com/go-redis/redis/extra/redisotel/v8" + "github.com/go-redis/redis/v8" + "go.opentelemetry.io/otel" + "go.opentelemetry.io/otel/exporters/stdout" + sdktrace "go.opentelemetry.io/otel/sdk/trace" +) + +var tracer = otel.Tracer("app_or_package_name") + +func main() { + exporter, err := stdout.NewExporter(stdout.WithPrettyPrint()) + if err != nil { + panic(err) + } + + provider := sdktrace.NewTracerProvider() + provider.RegisterSpanProcessor(sdktrace.NewSimpleSpanProcessor(exporter)) + + otel.SetTracerProvider(provider) + + rdb := redis.NewClient(&redis.Options{ + Addr: ":6379", + }) + defer rdb.Close() + + rdb.AddHook(redisotel.NewTracingHook()) + + ctx, span := tracer.Start(context.TODO(), "main") + defer span.End() + + if err := rdb.Ping(ctx).Err(); err != nil { + panic(err) + } +}