feat(rueidis): add auto instrumentation for github.com/redis/rueidis.

Dockerfile

@@ -2,6 +2,9 @@ FROM  --platform=$BUILDPLATFORM golang:1.23.4-bookworm@sha256:2e838582004fab0931
 
 RUN apt-get update && apt-get install -y curl clang gcc llvm make libbpf-dev
 
+ARG GOPROXY
+ENV GOPROXY=$GOPROXY
+
 WORKDIR /app
 
 # pre-copy/cache go.mod for pre-downloading dependencies and only redownloading

Makefile

@@ -159,7 +159,7 @@ license-header-check:
 	           exit 1; \
 	   fi
 
-.PHONY: fixture-nethttp fixture-gin fixture-databasesql fixture-nethttp-custom fixture-otelglobal fixture-autosdk fixture-kafka-go
+.PHONY: fixture-nethttp fixture-gin fixture-databasesql fixture-nethttp-custom fixture-otelglobal fixture-autosdk fixture-kafka-go fixture-rueidis
 fixture-nethttp-custom: fixtures/nethttp_custom
 fixture-nethttp: fixtures/nethttp
 fixture-gin: fixtures/gin
@@ -168,6 +168,7 @@ fixture-grpc: fixtures/grpc
 fixture-otelglobal: fixtures/otelglobal
 fixture-autosdk: fixtures/autosdk
 fixture-kafka-go: fixtures/kafka-go
+fixture-rueidis: fixtures/rueidis
 fixtures/%: LIBRARY=$*
 fixtures/%:
 	$(MAKE) docker-build

examples/httpPlusdb/docker-compose.yaml

@@ -10,6 +10,7 @@ services:
     depends_on:
       - jaeger
     build:
+      no_cache: true
       context: .
       dockerfile: ./Dockerfile
     pid: "host"

examples/rueidis/Dockerfile

@@ -0,0 +1,7 @@
+FROM golang:1.23.4@sha256:7ea4c9dcb2b97ff8ee80a67db3d44f98c8ffa0d191399197007d8459c1453041
+WORKDIR /app
+COPY ./*.go .
+RUN go mod init main
+RUN go mod tidy
+RUN go build -o main
+ENTRYPOINT ["/app/main"]

examples/rueidis/README.md

@@ -0,0 +1,20 @@
+# Example of Auto instrumentation of HTTP server
+
+Server exposes an endpoint `/do.` When we hit the endpoint, it sets a random value for `test_key` in redis and then 
+retrieves it using rueidis client. 
+
+For testing auto instrumentation, we can use the docker compose. 
+
+To run the example, bring up the services using the command.
+
+```
+docker compose up --build
+```
+
+Now, you can hit roll dice server using the below command
+```
+curl localhost:8081/do
+```
+Every hit to the server should generate a trace that we can observe in [Jaeger UI](http://localhost:16686/)
+
+Example trace ![Image](jaeger.png)

examples/rueidis/docker-compose.yaml

@@ -0,0 +1,52 @@
+networks:
+  default:
+    name: rueidis
+    driver: bridge
+
+services:
+  redis:
+    image: redis:7.2
+
+  app:
+    depends_on:
+      - jaeger
+      - redis
+    build:
+      context: .
+      dockerfile: ./Dockerfile
+    pid: "host"
+    ports:
+      - "8081:8081"
+    volumes:
+      - /proc:/host/proc
+
+  go-auto:
+    depends_on:
+      - app
+    build:
+      context: ../..
+      dockerfile: Dockerfile
+    privileged: true
+    pid: "host"
+    environment:
+      - OTEL_EXPORTER_OTLP_ENDPOINT=http://jaeger:4318
+      - OTEL_GO_AUTO_TARGET_EXE=/app/main
+      - OTEL_SERVICE_NAME=rueidis-app
+      - OTEL_PROPAGATORS=tracecontext,baggage
+    volumes:
+      - /proc:/host/proc
+
+  jaeger:
+    image: jaegertracing/all-in-one:1.60@sha256:4fd2d70fa347d6a47e79fcb06b1c177e6079f92cba88b083153d56263082135e
+    ports:
+      - "16686:16686"
+      - "14268:14268"
+    environment:
+      - COLLECTOR_OTLP_ENABLED=true
+      - LOG_LEVEL=debug
+      - JAEGER_DISABLED=true
+    deploy:
+      resources:
+        limits:
+          memory: 300M
+    restart: unless-stopped

examples/rueidis/go.mod

@@ -0,0 +1,7 @@
+module go.opentelemetry.io/auto/examples/rueidis
+
+go 1.20
+
+require github.com/redis/rueidis v1.0.40
+
+require golang.org/x/sys v0.19.0 // indirect

examples/rueidis/go.sum

@@ -0,0 +1,9 @@
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/onsi/gomega v1.31.1 h1:KYppCUK+bUgAZwHOu7EXVBKyQA6ILvOESHkn/tgoqvo=
+github.com/redis/rueidis v1.0.40 h1:zoC+GUTdNHhP7ZHrnMiIDcP16DUEVcxsPThQsvD7yDg=
+github.com/redis/rueidis v1.0.40/go.mod h1:bnbkk4+CkXZgDPEbUtSos/o55i4RhFYYesJ4DS2zmq0=
+golang.org/x/net v0.24.0 h1:1PcaxkF854Fu3+lvBIx5SYn9wRlBzzcnHZSiaFFAb0w=
+golang.org/x/sys v0.19.0 h1:q5f1RH2jigJ1MoAWp2KTp3gm5zAGFUTarQZ5U386+4o=
+golang.org/x/sys v0.19.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=

examples/rueidis/main.go

@@ -0,0 +1,75 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+package main
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"log"
+	"math/rand"
+	"net/http"
+
+	"github.com/redis/rueidis"
+)
+
+const testKey = "test_key"
+
+type server struct {
+	client rueidis.Client
+}
+
+func (s *server) Do(w http.ResponseWriter, req *http.Request) {
+	randomValue := fmt.Sprintf("random_value_%d", rand.Intn(1000))
+	err := setKey(req.Context(), s.client, testKey, randomValue)
+	if err != nil {
+		fmt.Println(fmt.Errorf("failed to set key: %v", err))
+	}
+	fmt.Printf("Set key '%s' with value: %s\n", testKey, randomValue)
+
+	value, err := getKey(req.Context(), s.client, testKey)
+	if err != nil {
+		fmt.Println(fmt.Errorf("failed to get key: %v", err))
+	}
+	fmt.Printf("Got value for key '%s': %s\n", testKey, value)
+
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(200)
+	_ = json.NewEncoder(w).Encode(map[string]string{"value": value})
+}
+
+func main() {
+	address := "redis:6379"
+	fmt.Println("Connecting to redis server...")
+	fmt.Println(address)
+
+	client, err := rueidis.NewClient(rueidis.ClientOption{
+		InitAddress: []string{address},
+		SelectDB:    0,
+	})
+	if err != nil {
+		log.Fatalf("Failed to create Redis client: %v", err)
+	}
+	defer client.Close()
+
+	s := &server{client: client}
+
+	http.HandleFunc("/do", s.Do)
+	port := ":8081"
+	fmt.Printf("Server starting on port %s\n", port)
+	log.Fatal(http.ListenAndServe(port, nil))
+}
+
+func setKey(ctx context.Context, client rueidis.Client, key, value string) error {
+	cmd := client.B().Set().Key(key).Value(value).Build()
+	return client.Do(ctx, cmd).Error()
+}
+
+func getKey(ctx context.Context, client rueidis.Client, key string) (string, error) {
+	cmd := client.B().Get().Key(key).Build()
+	result := client.Do(ctx, cmd)
+	if result.Error() != nil {
+		return "", result.Error()
+	}
+	return result.ToString()
+}