chore: improve OpenTelemetry example

example/otel/README.md

@@ -1,40 +1,47 @@
 # Example for go-redis OpenTelemetry instrumentation
 
+This example demonstrates how to monitor Redis using OpenTelemetry and
+[Uptrace](https://github.com/uptrace/uptrace). It requires Docker to start Redis Server and Uptrace.
+
 See
 [Monitoring Go Redis Performance and Errors](https://redis.uptrace.dev/guide/go-redis-monitoring.html)
 for details.
 
-This example requires Redis Server on port `:6379`. You can start Redis Server using Docker:
+**Step 1**. Download the example using Git:
 
 ```shell
+git clone https://github.com/go-redis/redis.git
+cd example/otel
+```
+
+**Step 2**. Start the services using Docker:
+
+```shell
+docker-compose pull
 docker-compose up -d
 ```
 
-You can run this example with different OpenTelemetry exporters by providing environment variables.
+**Step 3**. Make sure Uptrace is running:
-
-**Stdout** exporter (default):
 
 ```shell
-go run .
+docker-compose logs uptrace
 ```
 
-[Uptrace](https://github.com/uptrace/uptrace) exporter:
+**Step 4**. Run the Redis client example:
 
 ```shell
-UPTRACE_DSN="https://<token>@uptrace.dev/<project_id>" go run .
+UPTRACE_DSN=http://project2_secret_token@localhost:14317/2 go run client.go
 ```
 
-**Jaeger** exporter:
+**Step 5**. Follow the link from the CLI to view the trace:
 
 ```shell
-OTEL_EXPORTER_JAEGER_ENDPOINT=http://localhost:14268/api/traces go run .
+UPTRACE_DSN=http://project2_secret_token@localhost:14317/2 go run client.go
+trace: http://localhost:14318/traces/ee029d8782242c8ed38b16d961093b35
 ```
 
-To instrument Redis Cluster client, see
-[go-redis-cluster](https://github.com/uptrace/opentelemetry-go-extra/tree/main/example/go-redis-cluster)
-example.
-
 ## Links
 
+- [Uptrace open-source APM](https://uptrace.dev/get/open-source-apm.html)
 - [OpenTelemetry Go instrumentations](https://uptrace.dev/opentelemetry/instrumentations/?lang=go)
 - [OpenTelemetry Go Tracing API](https://uptrace.dev/opentelemetry/go-tracing.html)

example/otel/client.go

@@ -2,10 +2,12 @@ package main
 
 import (
 	"context"
+	"fmt"
 	"log"
 	"sync"
+	"time"
 
-	"github.com/uptrace/opentelemetry-go-extra/otelplay"
+	"github.com/uptrace/uptrace-go/uptrace"
 	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/codes"
 
@@ -13,13 +15,19 @@ import (
 	"github.com/go-redis/redis/v9"
 )
 
-var tracer = otel.Tracer("redisexample")
+var tracer = otel.Tracer("github.com/go-redis/redis/example/otel")
 
 func main() {
 	ctx := context.Background()
 
-	shutdown := otelplay.ConfigureOpentelemetry(ctx)
+	uptrace.ConfigureOpentelemetry(
-	defer shutdown()
+		// copy your project DSN here or use UPTRACE_DSN env var
+		// uptrace.WithDSN("https://AQDan_E_EPe3QAF9fMP0PiVr5UWOu4q5@uptrace.dev/1"),
+
+		uptrace.WithServiceName("myservice"),
+		uptrace.WithServiceVersion("v1.0.0"),
+	)
+	defer uptrace.Shutdown(ctx)
 
 	rdb := redis.NewClient(&redis.Options{
 		Addr: ":6379",
@@ -27,16 +35,26 @@ func main() {
 	if err := redisotel.InstrumentTracing(rdb); err != nil {
 		panic(err)
 	}
-
+	if err := redisotel.InstrumentMetrics(rdb); err != nil {
-	ctx, span := tracer.Start(ctx, "handleRequest")
+		panic(err)
-	defer span.End()
-
-	if err := handleRequest(ctx, rdb); err != nil {
-		span.RecordError(err)
-		span.SetStatus(codes.Error, err.Error())
 	}
 
-	otelplay.PrintTraceID(ctx)
+	for i := 0; i < 1e6; i++ {
+		ctx, rootSpan := tracer.Start(ctx, "handleRequest")
+
+		if err := handleRequest(ctx, rdb); err != nil {
+			rootSpan.RecordError(err)
+			rootSpan.SetStatus(codes.Error, err.Error())
+		}
+
+		rootSpan.End()
+
+		if i == 0 {
+			fmt.Printf("view trace: %s\n", uptrace.TraceURL(rootSpan))
+		}
+
+		time.Sleep(time.Second)
+	}
 }
 
 func handleRequest(ctx context.Context, rdb *redis.Client) error {

example/otel/docker-compose.yml

@@ -1,9 +1,65 @@
 version: '3'
 
 services:
+  clickhouse:
+    image: clickhouse/clickhouse-server:22.7
+    restart: on-failure
+    environment:
+      CLICKHOUSE_DB: uptrace
+    healthcheck:
+      test: ['CMD', 'wget', '--spider', '-q', 'localhost:8123/ping']
+      interval: 1s
+      timeout: 1s
+      retries: 30
+    volumes:
+      - ch_data:/var/lib/clickhouse
+    ports:
+      - '8123:8123'
+      - '9000:9000'
+
+  uptrace:
+    image: 'uptrace/uptrace:latest'
+    #image: 'uptrace/uptrace-dev:latest'
+    volumes:
+      - uptrace_data:/var/lib/uptrace
+      - ./uptrace.yml:/etc/uptrace/uptrace.yml
+    #environment:
+    #  - DEBUG=2
+    ports:
+      - '14317:14317'
+      - '14318:14318'
+    depends_on:
+      clickhouse:
+        condition: service_healthy
+
+  otel-collector:
+    image: otel/opentelemetry-collector-contrib:0.58.0
+    restart: on-failure
+    user: '0:0' # required for logs
+    volumes:
+      - ./otel-collector.yaml:/etc/otelcol-contrib/config.yaml
+      - /var/lib/docker/containers:/var/lib/docker/containers:ro
+      - /var/log:/var/log:ro
+    ports:
+      - '4317:4317'
+      - '4318:4318'
+
+  vector:
+    image: timberio/vector:0.24.X-alpine
+    volumes:
+      - ./vector.toml:/etc/vector/vector.toml:ro
+
   redis-server:
     image: redis
     ports:
       - '6379:6379'
   redis-cli:
     image: redis
+
+volumes:
+  uptrace_data:
+    driver: local
+  ch_data:
+    driver: local
+  alertmanager_data:
+    driver: local

example/otel/otel-collector.yaml

@@ -0,0 +1,68 @@
+extensions:
+  health_check:
+  pprof:
+    endpoint: 0.0.0.0:1777
+  zpages:
+    endpoint: 0.0.0.0:55679
+
+receivers:
+  otlp:
+    protocols:
+      grpc:
+      http:
+  hostmetrics:
+    collection_interval: 10s
+    scrapers:
+      cpu:
+      disk:
+      load:
+      filesystem:
+      memory:
+      network:
+      paging:
+  redis:
+    endpoint: 'redis-server:6379'
+    collection_interval: 10s
+  jaeger:
+    protocols:
+      grpc:
+
+processors:
+  resourcedetection:
+    detectors: ['system']
+  batch:
+    send_batch_size: 10000
+    timeout: 10s
+
+exporters:
+  logging:
+    logLevel: debug
+  otlp:
+    endpoint: uptrace:14317
+    tls:
+      insecure: true
+    headers: { 'uptrace-dsn': 'http://project2_secret_token@localhost:14317/2' }
+
+service:
+  # telemetry:
+  #   logs:
+  #     level: DEBUG
+  pipelines:
+    traces:
+      receivers: [otlp, jaeger]
+      processors: [batch]
+      exporters: [otlp, logging]
+    metrics:
+      receivers: [otlp]
+      processors: [batch]
+      exporters: [otlp]
+    metrics/hostmetrics:
+      receivers: [hostmetrics, redis]
+      processors: [batch, resourcedetection]
+      exporters: [otlp]
+    logs:
+      receivers: [otlp]
+      processors: [batch]
+      exporters: [otlp]
+
+  extensions: [health_check, pprof, zpages]

example/otel/uptrace.yml

@@ -0,0 +1,247 @@
+##
+## Uptrace configuration file.
+## See https://uptrace.dev/get/config.html for details.
+##
+## You can use environment variables anywhere in this file, for example:
+##
+##   foo: $FOO
+##   bar: ${BAR}
+##   baz: ${BAZ:default}
+##
+## To escape `$`, use `$$`, for example:
+##
+##   foo: $$FOO_BAR
+##
+
+##
+## A list of pre-configured projects. Each project is fully isolated.
+##
+projects:
+  # Conventionally, the first project is used to monitor Uptrace itself.
+  - id: 1
+    name: Uptrace
+    # Token grants write access to the project. Keep a secret.
+    token: project1_secret_token
+    pinned_attrs:
+      - service.name
+      - host.name
+      - deployment.environment
+
+  # Other projects can be used to monitor your applications.
+  # To monitor micro-services or multiple related services, use a single project.
+  - id: 2
+    name: My project
+    token: project2_secret_token
+    pinned_attrs:
+      - service.name
+      - host.name
+      - deployment.environment
+
+##
+## To require authentication, uncomment the following section.
+##
+auth:
+  # users:
+  #   - username: uptrace
+  #     password: uptrace
+  #   - username: admin
+  #     password: admin
+
+  # # Cloudflare user provider: uses Cloudflare Zero Trust Access (Identity)
+  # # See https://developers.cloudflare.com/cloudflare-one/identity/ for more info.
+  # cloudflare:
+  #   # The base URL of the Cloudflare Zero Trust team.
+  #   - team_url: https://myteam.cloudflareaccess.com
+  #     # The Application Audience (AUD) Tag for this application.
+  #     # You can retrieve this from the Cloudflare Zero Trust 'Access' Dashboard.
+  #     audience: bea6df23b944e4a0cd178609ba1bb64dc98dfe1f66ae7b918e563f6cf28b37e0
+
+  # # OpenID Connect (Single Sign-On)
+  # oidc:
+  #   # The ID is used in API endpoints, for example, in redirect URL
+  #   # `http://<uptrace-host>/api/v1/sso/<oidc-id>/callback`.
+  #   - id: keycloak
+  #     # Display name for the button in the login form.
+  #     # Default to 'OpenID Connect'
+  #     display_name: Keycloak
+  #     # The base URL for the OIDC provider.
+  #     issuer_url: http://localhost:8080/realms/uptrace
+  #     # The OAuth 2.0 Client ID
+  #     client_id: uptrace
+  #     # The OAuth 2.0 Client Secret
+  #     client_secret: ogbhd8Q0X0e5AZFGSG3m9oirPvnetqkA
+  #     # Additional OAuth 2.0 scopes to request from the OIDC provider.
+  #     # Defaults to 'profile'. 'openid' is requested by default and need not be specified.
+  #     scopes:
+  #       - profile
+  #     # The OIDC UserInfo claim to use as the user's username.
+  #     # Defaults to 'preferred_username'.
+  #     claim: preferred_username
+
+##
+## ClickHouse database credentials.
+##
+ch:
+  # Connection string for ClickHouse database. For example:
+  # clickhouse://<user>:<password>@<host>:<port>/<database>?sslmode=disable
+  #
+  # See https://clickhouse.uptrace.dev/guide/golang-clickhouse.html#options
+  dsn: 'clickhouse://default:@clickhouse:9000/uptrace?sslmode=disable'
+
+##
+## Alerting rules for monitoring metrics.
+##
+## See https://uptrace.dev/get/alerting.html for details.
+##
+alerting:
+  rules:
+    - name: Network errors
+      metrics:
+        - system.network.errors as $net_errors
+      query:
+        - $net_errors > 0 group by host.name
+      # for the last 5 minutes
+      for: 5m
+      # in the project id=1
+      projects: [1]
+
+    - name: Filesystem usage >= 90%
+      metrics:
+        - system.filesystem.usage as $fs_usage
+      query:
+        - group by host.name
+        - group by device
+        - where device !~ "loop"
+        - $fs_usage{state="used"} / $fs_usage >= 0.9
+      for: 5m
+      projects: [1]
+
+    - name: Uptrace is dropping spans
+      metrics:
+        - uptrace.projects.spans as $spans
+      query:
+        - $spans{type=dropped} > 0
+      for: 1m
+      projects: [1]
+
+    - name: Always firing (for fun and testing)
+      metrics:
+        - process.runtime.go.goroutines as $goroutines
+      query:
+        - $goroutines >= 0 group by host.name
+      for: 1m
+      projects: [1]
+
+  # Create alerts from error logs and span events.
+  create_alerts_from_spans:
+    enabled: true
+    labels:
+      alert_kind: error
+
+##
+## AlertManager client configuration.
+## See https://uptrace.dev/get/alerting.html for details.
+##
+## Note that this is NOT an AlertManager config and you need to configure AlertManager separately.
+## See https://prometheus.io/docs/alerting/latest/configuration/ for details.
+##
+alertmanager_client:
+  # AlertManager API endpoints that Uptrace uses to manage alerts.
+  # urls:
+  #   - 'http://alertmanager:9093/api/v2/alerts'
+
+##
+## Various options to tweak ClickHouse schema.
+## For changes to take effect, you need reset the ClickHouse database with `ch reset`.
+##
+ch_schema:
+  # Compression codec, for example, LZ4, ZSTD(3), or Default.
+  compression: ZSTD(3)
+
+  # Whether to use ReplicatedMergeTree instead of MergeTree.
+  replicated: false
+
+  # Cluster name for Distributed tables and ON CLUSTER clause.
+  #cluster: uptrace1
+
+  spans:
+    storage_policy: 'default'
+    # Delete spans data after 30 days.
+    ttl_delete: 30 DAY
+
+  metrics:
+    storage_policy: 'default'
+    # Delete metrics data after 90 days.
+    ttl_delete: 90 DAY
+
+##
+## Addresses on which Uptrace receives gRPC and HTTP requests.
+##
+listen:
+  # OTLP/gRPC API.
+  grpc:
+    addr: ':14317'
+    # tls:
+    #   cert_file: config/tls/uptrace.crt
+    #   key_file: config/tls/uptrace.key
+
+  # OTLP/HTTP API and Uptrace API with UI.
+  http:
+    addr: ':14318'
+    # tls:
+    #   cert_file: config/tls/uptrace.crt
+    #   key_file: config/tls/uptrace.key
+
+##
+## Various options for Uptrace UI.
+##
+site:
+  # Overrides public URL for Vue-powered UI in case you put Uptrace behind a proxy.
+  #addr: 'https://uptrace.mydomain.com'
+
+##
+## Spans processing options.
+##
+spans:
+  # The size of the Go chan used to buffer incoming spans.
+  # If the buffer is full, Uptrace starts to drop spans.
+  #buffer_size: 100000
+
+  # The number of spans to insert in a single query.
+  #batch_size: 10000
+
+##
+## Metrics processing options.
+##
+metrics:
+  # List of attributes to drop for being noisy.
+  drop_attrs:
+    - telemetry.sdk.language
+    - telemetry.sdk.name
+    - telemetry.sdk.version
+
+  # The size of the Go chan used to buffer incoming measures.
+  # If the buffer is full, Uptrace starts to drop measures.
+  #buffer_size: 100000
+
+  # The number of measures to insert in a single query.
+  #batch_size: 10000
+
+##
+## SQLite/PostgreSQL db that is used to store metadata such us metric names, dashboards, alerts,
+## and so on.
+##
+db:
+  # Either sqlite or postgres.
+  driver: sqlite
+  # Database connection string.
+  #
+  # Uptrace automatically creates SQLite database file in the current working directory.
+  # Make sure the directory is writable by Uptrace process.
+  dsn: 'file:uptrace.sqlite3?_pragma=foreign_keys(1)&_pragma=busy_timeout(1000)'
+
+# Secret key that is used to sign JWT tokens etc.
+secret_key: 102c1a557c314fc28198acd017960843
+
+# Enable to log HTTP requests and database queries.
+debug: false

example/otel/vector.toml

@@ -0,0 +1,39 @@
+[sources.syslog_logs]
+type = "demo_logs"
+format = "syslog"
+interval = 0.1
+
+[sources.apache_common_logs]
+type = "demo_logs"
+format = "apache_common"
+interval = 0.1
+
+[sources.apache_error_logs]
+type = "demo_logs"
+format = "apache_error"
+interval = 0.1
+
+[sources.json_logs]
+type = "demo_logs"
+format = "json"
+interval = 0.1
+
+# Parse Syslog logs
+# See the Vector Remap Language reference for more info: https://vrl.dev
+[transforms.parse_logs]
+type = "remap"
+inputs = ["syslog_logs"]
+source = '''
+. = parse_syslog!(string!(.message))
+'''
+
+# Export data to Uptrace.
+[sinks.uptrace]
+type = "http"
+inputs = ["parse_logs", "apache_common_logs", "apache_error_logs", "json_logs"]
+encoding.codec = "json"
+framing.method = "newline_delimited"
+compression = "gzip"
+uri = "http://uptrace:14318/api/v1/vector/logs"
+#uri = "https://api.uptrace.dev/api/v1/vector/logs"
+headers.uptrace-dsn = "http://project2_secret_token@localhost:14317/2"