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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| package autologs | ||
|
|
||
| import ( | ||
| "context" | ||
| "os" | ||
| "strings" | ||
|
|
||
| "github.com/go-faster/errors" | ||
| "github.com/go-faster/sdk/app" | ||
| "github.com/go-faster/sdk/zctx" | ||
| "go.opentelemetry.io/collector/pdata/plog/plogotlp" | ||
| "go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc" | ||
| "go.uber.org/zap" | ||
| "go.uber.org/zap/zapcore" | ||
| "google.golang.org/grpc" | ||
| "google.golang.org/grpc/credentials/insecure" | ||
|
|
||
| "github.com/go-faster/oteldb/internal/zapotel" | ||
| ) | ||
|
|
||
| // Setup OTLP log exporter if configured. | ||
| func Setup(ctx context.Context, m *app.Metrics) (context.Context, error) { | ||
| if os.Getenv("OTEL_LOGS_EXPORTER") != "otlp" { | ||
| return ctx, nil | ||
| } | ||
| // Setting zap -> otel. | ||
| otelOptions := []otelgrpc.Option{ | ||
| otelgrpc.WithTracerProvider(m.TracerProvider()), | ||
| otelgrpc.WithMeterProvider(m.MeterProvider()), | ||
| } | ||
| // Only PoC, should be replaced with real initialization | ||
| // and moved to go-faster/sdk. | ||
| endpoint := os.Getenv("OTEL_EXPORTER_OTLP_LOGS_ENDPOINT") | ||
| if endpoint == "" { | ||
| endpoint = os.Getenv("OTEL_EXPORTER_OTLP_ENDPOINT") | ||
| } | ||
| if endpoint == "" { | ||
| endpoint = "localhost:4317" | ||
| } | ||
| endpoint = strings.TrimPrefix(endpoint, "http://") | ||
| conn, err := grpc.DialContext(ctx, endpoint, | ||
| grpc.WithTransportCredentials(insecure.NewCredentials()), | ||
| grpc.WithStatsHandler(otelgrpc.NewClientHandler(otelOptions...)), | ||
| ) | ||
| if err != nil { | ||
| return ctx, errors.Wrap(err, "dial logs endpoint") | ||
| } | ||
| res, err := app.Resource(ctx) | ||
| if err != nil { | ||
| return ctx, errors.Wrap(err, "get resource") | ||
| } | ||
| lg := zctx.From(ctx) | ||
| otelCore := zapotel.New(lg.Level(), res, plogotlp.NewGRPCClient(conn)) | ||
| // Update logger down the stack. | ||
| lg.Info("Setting up OTLP log exporter") | ||
| lg = lg.WithOptions( | ||
| zap.WrapCore(func(core zapcore.Core) zapcore.Core { | ||
| return zapcore.NewTee(core, otelCore) | ||
| }), | ||
| ) | ||
| return zctx.Base(ctx, lg), nil | ||
| } |