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Multi-System Trace Integration Test (#318)
Co-authored-by: Jeffrey Chien <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,135 @@ | ||
| package otlp | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
| "time" | ||
|
|
||
| "github.com/aws/amazon-cloudwatch-agent-test/util/common" | ||
| "go.opentelemetry.io/contrib/propagators/aws/xray" | ||
| "go.opentelemetry.io/otel" | ||
| "go.opentelemetry.io/otel/attribute" | ||
| "go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc" | ||
| "go.opentelemetry.io/otel/sdk/resource" | ||
| sdktrace "go.opentelemetry.io/otel/sdk/trace" | ||
| semconv "go.opentelemetry.io/otel/semconv/v1.17.0" | ||
| "go.opentelemetry.io/otel/trace" | ||
| "golang.org/x/exp/maps" | ||
| ) | ||
|
|
||
| var generatorError = errors.New("Generator error") | ||
|
|
||
| const ( | ||
| serviceName = "load-generator" | ||
| attributeKeyAwsXrayAnnotations = "aws.xray.annotations" | ||
| ) | ||
|
|
||
| type OtlpTracesGenerator struct { | ||
| common.TraceGenerator | ||
| common.TraceGeneratorInterface | ||
| } | ||
|
|
||
| func (g *OtlpTracesGenerator) StartSendingTraces(ctx context.Context) error { | ||
| client, shutdown, err := setupClient(ctx) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer shutdown(ctx) | ||
| ticker := time.NewTicker(g.Cfg.Interval) | ||
| for { | ||
| select { | ||
| case <-g.Done: | ||
| ticker.Stop() | ||
| return client.ForceFlush(ctx) | ||
| case <-ticker.C: | ||
| if err = g.Generate(ctx); err != nil { | ||
| return err | ||
| } | ||
| } | ||
| } | ||
| } | ||
| func (g *OtlpTracesGenerator) StopSendingTraces() { | ||
| close(g.Done) | ||
| } | ||
| func newLoadGenerator(cfg *common.TraceGeneratorConfig) *OtlpTracesGenerator { | ||
| return &OtlpTracesGenerator{ | ||
| TraceGenerator: common.TraceGenerator{ | ||
| Cfg: cfg, | ||
| Done: make(chan struct{}), | ||
| SegmentsGenerationCount: 0, | ||
| SegmentsEndedCount: 0, | ||
| }, | ||
| } | ||
| } | ||
| func (g *OtlpTracesGenerator) Generate(ctx context.Context) error { | ||
| tracer := otel.Tracer("tracer") | ||
| g.SegmentsGenerationCount++ | ||
| _, span := tracer.Start(ctx, "example-span", trace.WithSpanKind(trace.SpanKindServer)) | ||
| defer func() { | ||
| span.End() | ||
| g.SegmentsEndedCount++ | ||
| }() | ||
|
|
||
| if len(g.Cfg.Annotations) > 0 { | ||
| span.SetAttributes(attribute.StringSlice(attributeKeyAwsXrayAnnotations, maps.Keys(g.Cfg.Annotations))) | ||
| } | ||
| span.SetAttributes(g.Cfg.Attributes...) | ||
| return nil | ||
| } | ||
|
|
||
| func (g *OtlpTracesGenerator) GetSegmentCount() (int, int) { | ||
| return g.SegmentsGenerationCount, g.SegmentsEndedCount | ||
| } | ||
|
|
||
| func (g *OtlpTracesGenerator) GetAgentConfigPath() string { | ||
| return g.AgentConfigPath | ||
| } | ||
| func (g *OtlpTracesGenerator) GetAgentRuntime() time.Duration { | ||
| return g.AgentRuntime | ||
| } | ||
| func (g *OtlpTracesGenerator) GetName() string { | ||
| return g.Name | ||
| } | ||
| func (g *OtlpTracesGenerator) GetGeneratorConfig() *common.TraceGeneratorConfig { | ||
| return g.Cfg | ||
| } | ||
|
|
||
| func setupClient(ctx context.Context) (*sdktrace.TracerProvider, func(context.Context) error, error) { | ||
| res := resource.NewWithAttributes( | ||
| semconv.SchemaURL, | ||
| semconv.ServiceName(serviceName), | ||
| ) | ||
|
|
||
| tp, err := setupTraceProvider(ctx, res) | ||
| if err != nil { | ||
| return nil, nil, err | ||
| } | ||
|
|
||
| otel.SetTracerProvider(tp) | ||
| otel.SetTextMapPropagator(xray.Propagator{}) | ||
|
|
||
| return tp, func(context.Context) (err error) { | ||
| timeoutCtx, cancel := context.WithTimeout(ctx, time.Second) | ||
| defer cancel() | ||
|
|
||
| err = tp.Shutdown(timeoutCtx) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| return nil | ||
| }, nil | ||
| } | ||
|
|
||
| func setupTraceProvider(ctx context.Context, res *resource.Resource) (*sdktrace.TracerProvider, error) { | ||
| exporter, err := otlptracegrpc.New(ctx, otlptracegrpc.WithInsecure()) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| return sdktrace.NewTracerProvider( | ||
| sdktrace.WithSampler(sdktrace.AlwaysSample()), | ||
| sdktrace.WithBatcher(exporter), | ||
| sdktrace.WithResource(res), | ||
| sdktrace.WithIDGenerator(xray.NewIDGenerator()), | ||
| ), nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| { | ||
| "traces": { | ||
| "traces_collected": { | ||
| "otlp": { | ||
| } | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| package otlp | ||
|
|
||
| import ( | ||
| "path/filepath" | ||
| "testing" | ||
| "time" | ||
|
|
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| "github.com/aws/amazon-cloudwatch-agent-test/environment" | ||
| "github.com/aws/amazon-cloudwatch-agent-test/util/common" | ||
| "github.com/stretchr/testify/require" | ||
| "go.opentelemetry.io/otel/attribute" | ||
| ) | ||
|
|
||
| const ( | ||
| agentRuntime = 5 * time.Minute | ||
| loadGeneratorInterval = 5 * time.Second | ||
| testSegmentCount = 20 | ||
| ) | ||
|
|
||
| func init() { | ||
| environment.RegisterEnvironmentMetaDataFlags() | ||
| } | ||
|
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| func TestTraces(t *testing.T) { | ||
| env := environment.GetEnvironmentMetaData() | ||
| testCases := map[string]struct { | ||
| agentConfigPath string | ||
| generatorConfig *common.TraceGeneratorConfig | ||
| }{ | ||
| "WithOTLP/Simple": { | ||
| agentConfigPath: filepath.Join("resources", "otlp-config.json"), | ||
| generatorConfig: &common.TraceGeneratorConfig{ | ||
| Interval: loadGeneratorInterval, | ||
| Annotations: map[string]interface{}{ | ||
| "test_type": "simple_otlp", | ||
| "instance_id": env.InstanceId, | ||
| "commit_sha": env.CwaCommitSha, | ||
| }, | ||
| Metadata: map[string]map[string]interface{}{ | ||
| "default": { | ||
| "custom_key": "custom_value", | ||
| }, | ||
| }, | ||
| Attributes: []attribute.KeyValue{ | ||
| attribute.String("custom_key", "custom_value"), | ||
| attribute.String("test_type", "simple_otlp"), | ||
| attribute.String("instance_id", env.InstanceId), | ||
| attribute.String("commit_sha", env.CwaCommitSha), | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
| t.Logf("Sanity check: number of test cases:%d", len(testCases)) | ||
| for name, testCase := range testCases { | ||
|
|
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| t.Run(name, func(t *testing.T) { | ||
|
|
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| OtlpTestCfg := common.TraceTestConfig{ | ||
| Generator: newLoadGenerator(testCase.generatorConfig), | ||
| Name: name, | ||
| AgentConfigPath: testCase.agentConfigPath, | ||
| AgentRuntime: agentRuntime, | ||
| } | ||
| err := common.TraceTest(t, OtlpTestCfg) | ||
| require.NoError(t, err, "TraceTest failed because %s", err) | ||
|
|
||
| }) | ||
| } | ||
| } |
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