add otel-playground

otel-playground/README.md

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+# OpenTelemetry Playground
+
+This repo has a few parts that allow you to play with opentelemetry using Docker Compose and cURL.
+
+1. Clone the repository
+1. Set up refinery in the `refinery` directory and start it with `docker compose up`
+1. Edit the `otelcol-config.yaml` file so it has API keys and such
+1. `docker compose up -d`
+1. Edit your trace.json file
+1. `curl -X POST -H "Content-Type: application/json" -d @trace.json -i http://localhost:4318/v1/traces`
+1. Go into Honeycomb and take a look!
+
+## Setting up OpenTelemetry Collector
+
+Suggest that you create a few environments:
+
+1. Raw spans environment for trace data
+1. Metrics environment for information about the collector and refinery
+1. Sampled spans environrment for refinery testing
+
+Each exporter gets one of those API keys.
+
+## Curling stuff
+
+If you've started the collector 
+
+curl -X POST -H "Content-Type: application/json" -d @trace.json -i http://localhost:4318/v1/traces

otel-playground/otelcol/docker-compose.yml

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+services:
+  otel-collector:
+    image: otel/opentelemetry-collector-contrib
+    restart: always
+    command: ["--config=/etc/otel-collector-config.yaml"]
+    volumes:
+      - ./otelcol-config.yaml:/etc/otel-collector-config.yaml
+    ports:
+      - "8888:8888" # Prometheus metrics exposed by the collector
+      - "8889:8889" # Prometheus exporter metrics
+      - "13133:13133" # health_check extension
+      - "4317:4317" # OTLP gRPC receiver
+      - "4318:4318" # OTLP HTTP receiver

otel-playground/otelcol/otelcol-config.yaml

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+exporters:
+  otlp/sampled:
+    endpoint: "localhost:8080"
+    headers:
+      "x-honeycomb-team": ""
+    compression: zstd
+    sending_queue:
+      enabled: true
+      num_consumers: 2
+  debug:
+    verbosity: detailed
+  otlp:
+    endpoint: "api.honeycomb.io:443"
+    headers:
+      "x-honeycomb-team": ""
+    compression: zstd
+    sending_queue:
+      enabled: true
+      num_consumers: 2
+  otlp/metrics:
+    endpoint: "api.honeycomb.io:443"
+    headers:
+      "x-honeycomb-team": ""
+      "x-honeycomb-dataset": "otelcol"
+
+processors:
+  memory_limiter:
+    check_interval: 5s
+    limit_mib: 16000
+    spike_limit_mib: 1000
+  batch:
+    send_batch_size: 1000
+    timeout: 150ms
+    send_batch_max_size: 2000
+  transform/labelme:
+    metric_statements:
+      - context: resource
+        statements:
+          - set(attributes["collector.name"], "${env:HOSTNAME}")
+    trace_statements:
+      - context: resource
+        statements:
+          - set(attributes["collector.name"], "${env:HOSTNAME}")
+      - context: span
+        statements: # The following add 48 hours to the spans so you can replay the same ones with new timestamps.
+          - set(start_time, start_time + Duration("48h"))
+          - set(end_time, end_time + Duration("48h"))
+          - set(attributes["mike.added_time"], "48 hours")
+    log_statements:
+      - context: resource
+        statements:
+          - set(attributes["collector.name"], "${env:HOSTNAME}")
+
+receivers:
+  otlp:
+    protocols:
+      grpc:
+        endpoint: 0.0.0.0:4317
+      http:
+        endpoint: 0.0.0.0:4318
+  prometheus:
+    config:
+      scrape_configs:
+        - job_name: "otelcol"
+          scrape_interval: 60s
+          static_configs:
+            - targets: ["0.0.0.0:8888"]
+          metric_relabel_configs:
+            - source_labels: [__name__]
+              regex: ".*grpc_io.*"
+              action: drop
+
+service:
+  pipelines:
+    traces:
+      receivers: [otlp]
+      processors: [memory_limiter, transform/labelme, batch]
+      exporters: [otlphttp/sampled]
+    metrics:
+      receivers: [prometheus]
+      processors: [batch, transform/labelme]
+      exporters: [otlp/metrics]
+  telemetry:
+    metrics:
+      level: detailed
+      address: ":8888"

otel-playground/refinery/config.yaml

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+General:
+  ConfigurationVersion: 2
+  MinRefineryVersion: v2.0
+Network:
+  ListenAddr: "0.0.0.0:8080"
+  PeerListenAddr: "0.0.0.0:8081"
+
+RefineryTelemetry:
+  AddRuleReasonToTrace: true
+  AddSpanCountToRoot: true
+  AddHostMetadataToTrace: true
+Traces:
+  LinkStrategy: RootLinkOverride
+IDFields:
+  TraceNames: [ trace.trace_id ]
+  ParentNames: [ trace.parent_id ]
+  LinkNames: [ trace.link.trace_id ]
+Debugging:
+  QueryAuthToken: sneaky-longer-token
+  AdditionalErrorFields:
+    - trace.span_id
+  DryRun: true
+Logger:
+  Type: honeycomb
+  Level: debug
+HoneycombLogger:
+  APIKey: 
+  Dataset: refinery-logs
+LegacyMetrics:
+  Enabled: true
+  APIKey: 
+  Dataset: refinery-metrics
+  ReportingInterval: 20s
+OTelMetrics:
+  Enabled: false
+PeerManagement:
+  Type: redis
+  IdentifierInterfaceName: eth0
+RedisPeerManagement:
+  Host: redis:6379
+Collection:
+  MaxAlloc: 6Gb
+Specialized:
+  AdditionalAttributes:
+    ClusterName: homelab
+GRPCServerParameters:
+  Enabled: true
+  ListenAddr: "0.0.0.0:4317"
+StressRelief:
+  Mode: monitor
+  ActivationLevel: 90
+  DeactivationLevel: 70
+  SamplingRate: 300
+

otel-playground/refinery/docker-compose.yml

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+services:
+  refinery1:
+    image: honeycombio/refinery
+    ports:
+      - 4317:4317
+      - 8080:8080
+    entrypoint:
+      - "refinery"
+    command:
+      - "-c"
+      - "/etc/refinery/config.yaml"
+      - "-r"
+      - "/etc/refinery/rules.yaml"
+    volumes:
+      - ./config.yaml:/etc/refinery/config.yaml
+      - ./rules.yaml:/etc/refinery/rules.yaml
+  refinery2:
+    image: honeycombio/refinery
+    ports:
+      - 4817:4317
+      - 8880:8080
+    entrypoint:
+      - "refinery"
+    command:
+      - "-c"
+      - "/etc/refinery/config.yaml"
+      - "-r"
+      - "/etc/refinery/rules.yaml"
+    volumes:
+      - ./config.yaml:/etc/refinery/config.yaml
+      - ./rules.yaml:/etc/refinery/rules.yaml
+  redis:
+    image: redis:6.2.5
+    expose:
+      - "6379"

otel-playground/refinery/rules.yaml

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+RulesVersion: 2
+Samplers:
+  __default__:
+    RulesBasedSampler:
+      Rules:
+        - Name: drop jobs
+          Drop: true
+          Conditions:
+            - Field: job.emitted_by
+              Operator: =
+              Value: worker
+        - Name: keep scheduler
+          SampleRate: 1
+          Conditions:
+            - Field: name
+              Operator: =
+              Value: "Evaluate the queue and environment"
+        - Name: Everything else 
+          SampleRate: 1

otel-playground/trace.json

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+{
+  "resourceSpans": [
+    {
+      "resource": {
+        "attributes": [
+          {
+            "key": "service.name",
+            "value": {
+              "stringValue": "Website"
+            }
+          },
+          {
+              "key": "service.version",
+              "value": {
+                "stringValue": "0.4.3"
+              }
+          },
+          {
+              "key": "resource.attribute",
+              "value": {
+                "stringValue": "Cool."
+              }
+          }
+        ]
+      },
+      "scopeSpans": [
+        {
+          "scope": {
+            "name": "actually library.name",
+            "version": "1.0.0",
+            "attributes": [
+              {
+                "key": "scope span attribute",
+                "value": {
+                  "stringValue": "This right here!"
+                }
+              }
+            ]
+          },
+          "spans": [
+            {
+              "traceId": "5B8EFFF798038103D269B633813BC60B",
+              "spanId": "EEE19B7EC3C1B173",
+              "name": "HTTP Get with 404 and error",
+              "startTimeUnixNano": "1715181832792586068",
+              "endTimeUnixNano": "1715181855919708789",
+              "kind": 2,
+              "attributes": [
+                {
+                  "key": "http.path",
+                  "value": {
+                    "stringValue": "http://productapi/v1/soft_error"
+                  }
+                },
+                {
+                  "key": "http.status_code",
+                  "value": {
+                    "intValue": 404
+                  }
+                }
+              ],
+              "status": {
+                  "code": 2
+              }
+            },
+            {
+              "traceId": "5B8EFFF798038103D269B633813BC60B",
+              "spanId": "EEE19B7EC3C1B172",
+              "parentSpanId": "EEE19B7EC3C1B173",
+              "name": "HTTP GET with 200 status",
+              "startTimeUnixNano": "1715181843799532705",
+              "endTimeUnixNano": "1715181849901447102",
+              "kind": 2,
+              "attributes": [
+                {
+                  "key": "http.path",
+                  "value": {
+                    "stringValue": "http://productapi/api/product/v1"
+                  }
+                },
+                {
+                  "key": "http.status_code",
+                  "value": {
+                    "intValue": 200
+                  }
+                }
+              ],
+              "status": {
+                  "code": 1
+              }
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}