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Prototype sending product telemetry #1246
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,129 @@ | ||
| package static | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
||
| "github.com/go-logr/logr" | ||
| "go.opentelemetry.io/otel" | ||
| "go.opentelemetry.io/otel/attribute" | ||
| "go.opentelemetry.io/otel/exporters/otlp/otlptrace" | ||
| "go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc" | ||
| "go.opentelemetry.io/otel/exporters/stdout/stdouttrace" | ||
| "go.opentelemetry.io/otel/sdk/resource" | ||
| sdktrace "go.opentelemetry.io/otel/sdk/trace" | ||
| semconv "go.opentelemetry.io/otel/semconv/v1.17.0" | ||
| v1 "k8s.io/api/core/v1" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| ) | ||
|
|
||
| type errorHandler struct { | ||
| logger logr.Logger | ||
| } | ||
|
|
||
| func (h errorHandler) Handle(err error) { | ||
| h.logger.Error(err, "error in telemetry") | ||
| } | ||
|
|
||
| type telemetryReporter struct { | ||
| k8sClient client.Client | ||
| logger logr.Logger | ||
| } | ||
|
|
||
| func (r *telemetryReporter) Start(ctx context.Context) error { | ||
| // runs once in a POC. | ||
|
|
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| // telemetry endpoint configuration | ||
| var ( | ||
| // /otel-collector/README.md deploys a collector with the endpoint below | ||
| // no TLS or auth headers are needed for that collector | ||
| endpoint = "my-opentelemetry-collector.default.svc.cluster.local:4317" | ||
| secure = false // use TLS or not. | ||
| headers = map[string]string{} // allows t add headers to a GRPC connection. (e.g. authentication) | ||
| ) | ||
|
|
||
| // gather telemetry data | ||
| var ns v1.Namespace | ||
| err := r.k8sClient.Get(ctx, client.ObjectKey{Name: "kube-system"}, &ns) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| // cluster ID (UUID of kube-system namespace) | ||
| clusterID := string(ns.UID) | ||
| // NGF version | ||
| ngfVersion := "product-tel-prototype-0.0.1" | ||
|
|
||
| // configure OTel | ||
| otel.SetLogger(r.logger) | ||
| otel.SetErrorHandler(errorHandler{ | ||
| logger: r.logger, | ||
| }) | ||
|
|
||
| // create resource | ||
| res, err := resource.Merge( | ||
| resource.Default(), | ||
| resource.NewWithAttributes( | ||
| "", | ||
| semconv.ServiceName("NGF"), | ||
| semconv.ServiceVersion("1.0.0"), | ||
| ), | ||
| ) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| stdoutExporter, err := newStdoutExporter() | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| otelExporter, err := newOTLPExporter(ctx, endpoint, secure, headers) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| provider := sdktrace.NewTracerProvider( | ||
| sdktrace.WithBatcher(stdoutExporter), // prints to stdout | ||
| sdktrace.WithBatcher(otelExporter), // sends to a collector | ||
| sdktrace.WithResource(res), | ||
| ) | ||
|
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| tracer := provider.Tracer("product-telemetry") | ||
|
|
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| // create span | ||
| _, span := tracer.Start(ctx, "report") | ||
|
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| span.SetAttributes( | ||
| attribute.String("clusterId", clusterID), | ||
| attribute.String("ngfVersion", ngfVersion), | ||
| ) | ||
|
|
||
| // send | ||
| span.End() // exits immediately and sends asynchronously | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func newStdoutExporter() (*stdouttrace.Exporter, error) { | ||
| return stdouttrace.New(stdouttrace.WithPrettyPrint()) | ||
| } | ||
|
|
||
| func newOTLPExporter( | ||
| ctx context.Context, | ||
| endpoint string, | ||
| secure bool, | ||
| headers map[string]string, | ||
| ) (*otlptrace.Exporter, error) { | ||
| options := []otlptracegrpc.Option{ | ||
| otlptracegrpc.WithEndpoint(endpoint), | ||
| otlptracegrpc.WithHeaders(headers), | ||
| } | ||
|
|
||
| if !secure { | ||
| options = append(options, otlptracegrpc.WithInsecure()) | ||
| } | ||
|
|
||
| traceClient := otlptracegrpc.NewClient(options...) | ||
|
|
||
| return otlptrace.New(ctx, traceClient) | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,19 @@ | ||
| # How to Install | ||
|
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||
| Add repo: | ||
|
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||
| ```text | ||
| helm repo add open-telemetry https://open-telemetry.github.io/opentelemetry-helm-charts | ||
| ``` | ||
|
|
||
| Install: | ||
|
|
||
| ```text | ||
| helm install my-opentelemetry-collector open-telemetry/opentelemetry-collector -f values.yaml | ||
| ``` | ||
|
|
||
| Uninstall: | ||
|
|
||
| ```text | ||
| helm uninstall my-opentelemetry-collector | ||
| ``` |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| mode: deployment | ||
| replicaCount: 1 | ||
| config: | ||
| exporters: | ||
| debug: | ||
| verbosity: detailed | ||
| receivers: | ||
| jaeger: | ||
| prometheus: | ||
| zipkin: | ||
| otlp: | ||
| protocols: | ||
| grpc: | ||
| endpoint: 0.0.0.0:4317 | ||
| service: | ||
| telemetry: | ||
| extensions: | ||
| - health_check | ||
| pipelines: | ||
| logs: | ||
| metrics: | ||
| traces: | ||
| exporters: | ||
| - debug | ||
| processors: | ||
| receivers: | ||
| - otlp |
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