diff --git a/docs/tracing.md b/docs/tracing.md new file mode 100644 index 000000000..041e5f89b --- /dev/null +++ b/docs/tracing.md @@ -0,0 +1,84 @@ +# Tracing + +containerd supports OpenTelemetry tracing since v1.6.0. +Tracing currently targets only gRPC calls. + +## Sending traces from containerd deamon + +By configuring `io.containerd.tracing.processor.v1.otlp` plugin. +containerd daemon can send traces to the specified OpenTelemetry endpoint. + +```toml +[plugins."io.containerd.tracing.processor.v1.otlp"] + endpoint = "http://localhost:4318" +``` + +The following options are supported. + +- `endpoint`: The address of a server that receives [OpenTelemetry Protocol](https://github.com/open-telemetry/opentelemetry-specification/blob/v1.8.0/specification/protocol/otlp.md). +- `protocol`: OpenTelemetry supports multiple protocols. + The default value is "http/protobuf". "grpc" is also supported. +- `insecure`: Disable transport security when the protocol is "grpc". The default is false. + "http/protobuf" always uses the schema provided by the endpoint and + the value of this setting being ignored. + +The sampling ratio and the service name on the traces could be configured by +`io.containerd.internal.v1.tracing` plugin. + +```toml +[plugins."io.containerd.internal.v1.tracing"] + sampling_ratio = 1.0 + service_name = "containerd" +``` + +## Sending traces from containerd client + +By configuring its underlying gRPC client, containerd's Go client can send +traces to an OpenTelemetry endpoint. + +Note that the Go client's methods and gRPC calls are not 1:1. Single method +call would issue multiple gRPC calls. + +```go +func clientWithTrace() error { + exp, err := otlptracehttp.New(ctx, + otlptracehttp.WithEndpoint("localhost:4318"), + otlptracehttp.WithInsecure(), + ) + if err != nil { + return err + } + + res, err := resource.New(ctx, resource.WithAttributes( + semconv.ServiceNameKey.String("CLIENT NAME"), + )) + if err != nil { + return err + } + + provider := trace.NewTracerProvider( + trace.WithSampler(trace.AlwaysSample()), + trace.WithSpanProcessor(trace.NewSimpleSpanProcessor(exp)), + trace.WithResource(res), + ) + otel.SetTracerProvider(provider) + otel.SetTextMapPropagator(propagation.TraceContext{}) + + ... + + dialOpts := []grpc.DialOption{ + grpc.WithTransportCredentials(insecure.NewCredentials()), + grpc.WithStreamInterceptor(otelgrpc.StreamClientInterceptor()), + grpc.WithUnaryInterceptor(otelgrpc.UnaryClientInterceptor()), + } + client, ctx, cancel, err := commands.NewClient(context, containerd.WithDialOpts(dialOpts)) + if err != nil { + return err + } + defer cancel() + + ctx, span := tracing.StartSpan(ctx, "OPERATION NAME") + defer span.End() + ... +} +``` diff --git a/go.mod b/go.mod index bf5e409b7..88e7b0f34 100644 --- a/go.mod +++ b/go.mod @@ -60,7 +60,9 @@ require ( go.etcd.io/bbolt v1.3.6 go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.28.0 go.opentelemetry.io/otel v1.3.0 + go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.3.0 go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.3.0 + go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.3.0 go.opentelemetry.io/otel/sdk v1.3.0 go.opentelemetry.io/otel/trace v1.3.0 golang.org/x/crypto v0.0.0-20210817164053-32db794688a5 // indirect diff --git a/go.sum b/go.sum index 6887836a1..0c4967bff 100644 --- a/go.sum +++ b/go.sum @@ -692,6 +692,8 @@ go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.3.0 h1:giGm8w67Ja7amYNfYMdm go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.3.0/go.mod h1:hO1KLR7jcKaDDKDkvI9dP/FIhpmna5lkqPUQdEjFAM8= go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.3.0 h1:VQbUHoJqytHHSJ1OZodPH9tvZZSVzUHjPHpkO85sT6k= go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.3.0/go.mod h1:keUU7UfnwWTWpJ+FWnyqmogPa82nuU5VUANFq49hlMY= +go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.3.0 h1:Ydage/P0fRrSPpZeCVxzjqGcI6iVmG2xb43+IR8cjqM= +go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.3.0/go.mod h1:QNX1aly8ehqqX1LEa6YniTU7VY9I6R3X/oPxhGdTceE= go.opentelemetry.io/otel/metric v0.20.0/go.mod h1:598I5tYlH1vzBjn+BTuhzTCSb/9debfNp6R3s7Pr1eU= go.opentelemetry.io/otel/oteltest v0.20.0/go.mod h1:L7bgKf9ZB7qCwT9Up7i9/pn0PWIa9FqQ2IQ8LoxiGnw= go.opentelemetry.io/otel/sdk v0.20.0/go.mod h1:g/IcepuwNsoiX5Byy2nNV0ySUF1em498m7hBWC279Yc= diff --git a/integration/client/go.sum b/integration/client/go.sum index ceb48a426..a303f3845 100644 --- a/integration/client/go.sum +++ b/integration/client/go.sum @@ -642,6 +642,7 @@ go.opentelemetry.io/otel/exporters/otlp v0.20.0/go.mod h1:YIieizyaN77rtLJra0buKi go.opentelemetry.io/otel/exporters/otlp/internal/retry v1.3.0/go.mod h1:VpP4/RMn8bv8gNo9uK7/IMY4mtWLELsS+JIP0inH0h4= go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.3.0/go.mod h1:hO1KLR7jcKaDDKDkvI9dP/FIhpmna5lkqPUQdEjFAM8= go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.3.0/go.mod h1:keUU7UfnwWTWpJ+FWnyqmogPa82nuU5VUANFq49hlMY= +go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.3.0/go.mod h1:QNX1aly8ehqqX1LEa6YniTU7VY9I6R3X/oPxhGdTceE= go.opentelemetry.io/otel/metric v0.20.0/go.mod h1:598I5tYlH1vzBjn+BTuhzTCSb/9debfNp6R3s7Pr1eU= go.opentelemetry.io/otel/oteltest v0.20.0/go.mod h1:L7bgKf9ZB7qCwT9Up7i9/pn0PWIa9FqQ2IQ8LoxiGnw= go.opentelemetry.io/otel/sdk v0.20.0/go.mod h1:g/IcepuwNsoiX5Byy2nNV0ySUF1em498m7hBWC279Yc= diff --git a/tracing/plugin/otlp.go b/tracing/plugin/otlp.go index 3b3928478..a2aabd465 100644 --- a/tracing/plugin/otlp.go +++ b/tracing/plugin/otlp.go @@ -20,24 +20,24 @@ import ( "context" "fmt" "io" + "net/url" "time" "github.com/containerd/containerd/log" "github.com/containerd/containerd/plugin" "go.opentelemetry.io/otel" + "go.opentelemetry.io/otel/exporters/otlp/otlptrace" "go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc" + "go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp" "go.opentelemetry.io/otel/propagation" "go.opentelemetry.io/otel/sdk/resource" sdktrace "go.opentelemetry.io/otel/sdk/trace" semconv "go.opentelemetry.io/otel/semconv/v1.4.0" - "google.golang.org/grpc" ) const exporterPlugin = "otlp" func init() { - const timeout = 5 * time.Second - plugin.Register(&plugin.Registration{ ID: exporterPlugin, Type: plugin.TracingProcessorPlugin, @@ -45,28 +45,9 @@ func init() { InitFn: func(ic *plugin.InitContext) (interface{}, error) { cfg := ic.Config.(*OTLPConfig) if cfg.Endpoint == "" { - return nil, fmt.Errorf("otlp endpoint not set: %w", plugin.ErrSkipPlugin) + return nil, fmt.Errorf("no OpenTelemetry endpoint: %w", plugin.ErrSkipPlugin) } - - opts := []otlptracegrpc.Option{ - otlptracegrpc.WithEndpoint(cfg.Endpoint), - otlptracegrpc.WithDialOption( - grpc.WithBlock(), - grpc.WithReturnConnectionError(), - ), - } - if cfg.Insecure { - opts = append(opts, otlptracegrpc.WithInsecure()) - } - - ctx, cancel := context.WithTimeout(ic.Context, timeout) - defer cancel() - - exp, err := otlptracegrpc.New(ctx, opts...) - if err != nil { - return nil, fmt.Errorf("failed to create otlp exporter: %w", err) - } - return sdktrace.NewBatchSpanProcessor(exp), nil + return newExporter(ic.Context, cfg) }, }) plugin.Register(&plugin.Registration{ @@ -83,6 +64,7 @@ func init() { // OTLPConfig holds the configurations for the built-in otlp span processor type OTLPConfig struct { Endpoint string `toml:"endpoint"` + Protocol string `toml:"protocol"` Insecure bool `toml:"insecure"` } @@ -100,8 +82,46 @@ func (c *closer) Close() error { return c.close() } -// InitOpenTelemetry reads config and initializes otel middleware, sets the exporter -// propagator and global tracer provider +// newExporter creates an exporter based on the given configuration. +// +// The default protocol is http/protobuf since it is recommended by +// https://github.com/open-telemetry/opentelemetry-specification/blob/v1.8.0/specification/protocol/exporter.md#specify-protocol. +func newExporter(ctx context.Context, cfg *OTLPConfig) (*otlptrace.Exporter, error) { + const timeout = 5 * time.Second + + ctx, cancel := context.WithTimeout(ctx, timeout) + defer cancel() + + if cfg.Protocol == "http/protobuf" || cfg.Protocol == "" { + u, err := url.Parse(cfg.Endpoint) + if err != nil { + return nil, fmt.Errorf("OpenTelemetry endpoint %q is invalid: %w", cfg.Endpoint, err) + } + opts := []otlptracehttp.Option{ + otlptracehttp.WithEndpoint(u.Host), + } + if u.Scheme == "http" { + opts = append(opts, otlptracehttp.WithInsecure()) + } + return otlptracehttp.New(ctx, opts...) + } else if cfg.Protocol == "grpc" { + opts := []otlptracegrpc.Option{ + otlptracegrpc.WithEndpoint(cfg.Endpoint), + } + if cfg.Insecure { + opts = append(opts, otlptracegrpc.WithInsecure()) + } + return otlptracegrpc.New(ctx, opts...) + } else { + // Other protocols such as "http/json" are not supported. + return nil, fmt.Errorf("OpenTelemetry protocol %q is not supported", cfg.Protocol) + } +} + +// newTracer configures protocol-agonostic tracing settings such as +// its sampling ratio and returns io.Closer. +// +// Note that this function sets process-wide tracing configuration. func newTracer(ic *plugin.InitContext) (io.Closer, error) { ctx := ic.Context config := ic.Config.(*TraceConfig) @@ -130,7 +150,7 @@ func newTracer(ic *plugin.InitContext) (io.Closer, error) { for id, pctx := range ls { p, err := pctx.Instance() if err != nil { - log.G(ctx).WithError(err).Errorf("Failed to init tracing processor %q", id) + log.G(ctx).WithError(err).Errorf("failed to initialize a tracing processor %q", id) continue } proc := p.(sdktrace.SpanProcessor) diff --git a/tracing/tracing.go b/tracing/tracing.go index 433739aa6..d3ecfb5f9 100644 --- a/tracing/tracing.go +++ b/tracing/tracing.go @@ -24,13 +24,11 @@ import ( ) // StartSpan starts child span in a context. -func StartSpan(ctx context.Context, opName string, opts ...trace.SpanStartOption) (trace.Span, context.Context) { +func StartSpan(ctx context.Context, opName string, opts ...trace.SpanStartOption) (context.Context, trace.Span) { if parent := trace.SpanFromContext(ctx); parent != nil && parent.SpanContext().IsValid() { - ctx, span := parent.TracerProvider().Tracer("").Start(ctx, opName, opts...) - return span, ctx + return parent.TracerProvider().Tracer("").Start(ctx, opName, opts...) } - ctx, span := otel.Tracer("").Start(ctx, opName, opts...) - return span, ctx + return otel.Tracer("").Start(ctx, opName, opts...) } // StopSpan ends the span specified diff --git a/vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/LICENSE b/vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/LICENSE new file mode 100644 index 000000000..261eeb9e9 --- /dev/null +++ b/vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/LICENSE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/client.go b/vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/client.go new file mode 100644 index 000000000..dbc6c5ba7 --- /dev/null +++ b/vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/client.go @@ -0,0 +1,324 @@ +// Copyright The OpenTelemetry Authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package otlptracehttp // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp" + +import ( + "bytes" + "compress/gzip" + "context" + "fmt" + "io" + "io/ioutil" + "net" + "net/http" + "net/url" + "path" + "strconv" + "strings" + "sync" + "time" + + "google.golang.org/protobuf/proto" + + "go.opentelemetry.io/otel/exporters/otlp/internal/retry" + "go.opentelemetry.io/otel/exporters/otlp/otlptrace" + "go.opentelemetry.io/otel/exporters/otlp/otlptrace/internal/otlpconfig" + coltracepb "go.opentelemetry.io/proto/otlp/collector/trace/v1" + tracepb "go.opentelemetry.io/proto/otlp/trace/v1" +) + +const contentTypeProto = "application/x-protobuf" + +var gzPool = sync.Pool{ + New: func() interface{} { + w := gzip.NewWriter(ioutil.Discard) + return w + }, +} + +// Keep it in sync with golang's DefaultTransport from net/http! We +// have our own copy to avoid handling a situation where the +// DefaultTransport is overwritten with some different implementation +// of http.RoundTripper or it's modified by other package. +var ourTransport = &http.Transport{ + Proxy: http.ProxyFromEnvironment, + DialContext: (&net.Dialer{ + Timeout: 30 * time.Second, + KeepAlive: 30 * time.Second, + }).DialContext, + ForceAttemptHTTP2: true, + MaxIdleConns: 100, + IdleConnTimeout: 90 * time.Second, + TLSHandshakeTimeout: 10 * time.Second, + ExpectContinueTimeout: 1 * time.Second, +} + +type client struct { + name string + cfg otlpconfig.SignalConfig + generalCfg otlpconfig.Config + requestFunc retry.RequestFunc + client *http.Client + stopCh chan struct{} + stopOnce sync.Once +} + +var _ otlptrace.Client = (*client)(nil) + +// NewClient creates a new HTTP trace client. +func NewClient(opts ...Option) otlptrace.Client { + cfg := otlpconfig.NewDefaultConfig() + otlpconfig.ApplyHTTPEnvConfigs(&cfg) + for _, opt := range opts { + opt.applyHTTPOption(&cfg) + } + + for pathPtr, defaultPath := range map[*string]string{ + &cfg.Traces.URLPath: otlpconfig.DefaultTracesPath, + } { + tmp := strings.TrimSpace(*pathPtr) + if tmp == "" { + tmp = defaultPath + } else { + tmp = path.Clean(tmp) + if !path.IsAbs(tmp) { + tmp = fmt.Sprintf("/%s", tmp) + } + } + *pathPtr = tmp + } + + httpClient := &http.Client{ + Transport: ourTransport, + Timeout: cfg.Traces.Timeout, + } + if cfg.Traces.TLSCfg != nil { + transport := ourTransport.Clone() + transport.TLSClientConfig = cfg.Traces.TLSCfg + httpClient.Transport = transport + } + + stopCh := make(chan struct{}) + return &client{ + name: "traces", + cfg: cfg.Traces, + generalCfg: cfg, + requestFunc: cfg.RetryConfig.RequestFunc(evaluate), + stopCh: stopCh, + client: httpClient, + } +} + +// Start does nothing in a HTTP client +func (d *client) Start(ctx context.Context) error { + // nothing to do + select { + case <-ctx.Done(): + return ctx.Err() + default: + } + return nil +} + +// Stop shuts down the client and interrupt any in-flight request. +func (d *client) Stop(ctx context.Context) error { + d.stopOnce.Do(func() { + close(d.stopCh) + }) + select { + case <-ctx.Done(): + return ctx.Err() + default: + } + return nil +} + +// UploadTraces sends a batch of spans to the collector. +func (d *client) UploadTraces(ctx context.Context, protoSpans []*tracepb.ResourceSpans) error { + pbRequest := &coltracepb.ExportTraceServiceRequest{ + ResourceSpans: protoSpans, + } + rawRequest, err := proto.Marshal(pbRequest) + if err != nil { + return err + } + + ctx, cancel := d.contextWithStop(ctx) + defer cancel() + + request, err := d.newRequest(rawRequest) + if err != nil { + return err + } + + return d.requestFunc(ctx, func(ctx context.Context) error { + select { + case <-ctx.Done(): + return ctx.Err() + default: + } + + request.reset(ctx) + resp, err := d.client.Do(request.Request) + if err != nil { + return err + } + + var rErr error + switch resp.StatusCode { + case http.StatusOK: + // Success, do not retry. + case http.StatusTooManyRequests, + http.StatusServiceUnavailable: + // Retry-able failure. + rErr = newResponseError(resp.Header) + + // Going to retry, drain the body to reuse the connection. + if _, err := io.Copy(ioutil.Discard, resp.Body); err != nil { + _ = resp.Body.Close() + return err + } + default: + rErr = fmt.Errorf("failed to send %s to %s: %s", d.name, request.URL, resp.Status) + } + + if err := resp.Body.Close(); err != nil { + return err + } + return rErr + }) +} + +func (d *client) newRequest(body []byte) (request, error) { + u := url.URL{Scheme: d.getScheme(), Host: d.cfg.Endpoint, Path: d.cfg.URLPath} + r, err := http.NewRequest(http.MethodPost, u.String(), nil) + if err != nil { + return request{Request: r}, err + } + + for k, v := range d.cfg.Headers { + r.Header.Set(k, v) + } + r.Header.Set("Content-Type", contentTypeProto) + + req := request{Request: r} + switch Compression(d.cfg.Compression) { + case NoCompression: + r.ContentLength = (int64)(len(body)) + req.bodyReader = bodyReader(body) + case GzipCompression: + // Ensure the content length is not used. + r.ContentLength = -1 + r.Header.Set("Content-Encoding", "gzip") + + gz := gzPool.Get().(*gzip.Writer) + defer gzPool.Put(gz) + + var b bytes.Buffer + gz.Reset(&b) + + if _, err := gz.Write(body); err != nil { + return req, err + } + // Close needs to be called to ensure body if fully written. + if err := gz.Close(); err != nil { + return req, err + } + + req.bodyReader = bodyReader(b.Bytes()) + } + + return req, nil +} + +// bodyReader returns a closure returning a new reader for buf. +func bodyReader(buf []byte) func() io.ReadCloser { + return func() io.ReadCloser { + return ioutil.NopCloser(bytes.NewReader(buf)) + } +} + +// request wraps an http.Request with a resettable body reader. +type request struct { + *http.Request + + // bodyReader allows the same body to be used for multiple requests. + bodyReader func() io.ReadCloser +} + +// reset reinitializes the request Body and uses ctx for the request. +func (r *request) reset(ctx context.Context) { + r.Body = r.bodyReader() + r.Request = r.Request.WithContext(ctx) +} + +// retryableError represents a request failure that can be retried. +type retryableError struct { + throttle int64 +} + +// newResponseError returns a retryableError and will extract any explicit +// throttle delay contained in headers. +func newResponseError(header http.Header) error { + var rErr retryableError + if s, ok := header["Retry-After"]; ok { + if t, err := strconv.ParseInt(s[0], 10, 64); err == nil { + rErr.throttle = t + } + } + return rErr +} + +func (e retryableError) Error() string { + return "retry-able request failure" +} + +// evaluate returns if err is retry-able. If it is and it includes an explicit +// throttling delay, that delay is also returned. +func evaluate(err error) (bool, time.Duration) { + if err == nil { + return false, 0 + } + + rErr, ok := err.(retryableError) + if !ok { + return false, 0 + } + + return true, time.Duration(rErr.throttle) +} + +func (d *client) getScheme() string { + if d.cfg.Insecure { + return "http" + } + return "https" +} + +func (d *client) contextWithStop(ctx context.Context) (context.Context, context.CancelFunc) { + // Unify the parent context Done signal with the client's stop + // channel. + ctx, cancel := context.WithCancel(ctx) + go func(ctx context.Context, cancel context.CancelFunc) { + select { + case <-ctx.Done(): + // Nothing to do, either cancelled or deadline + // happened. + case <-d.stopCh: + cancel() + } + }(ctx, cancel) + return ctx, cancel +} diff --git a/vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/doc.go b/vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/doc.go new file mode 100644 index 000000000..e7f066b43 --- /dev/null +++ b/vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/doc.go @@ -0,0 +1,19 @@ +// Copyright The OpenTelemetry Authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +/* +Package otlptracehttp a client that sends traces to the collector using HTTP +with binary protobuf payloads. +*/ +package otlptracehttp // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp" diff --git a/vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/exporter.go b/vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/exporter.go new file mode 100644 index 000000000..23b864204 --- /dev/null +++ b/vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/exporter.go @@ -0,0 +1,31 @@ +// Copyright The OpenTelemetry Authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package otlptracehttp // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp" + +import ( + "context" + + "go.opentelemetry.io/otel/exporters/otlp/otlptrace" +) + +// New constructs a new Exporter and starts it. +func New(ctx context.Context, opts ...Option) (*otlptrace.Exporter, error) { + return otlptrace.New(ctx, NewClient(opts...)) +} + +// NewUnstarted constructs a new Exporter and does not start it. +func NewUnstarted(opts ...Option) *otlptrace.Exporter { + return otlptrace.NewUnstarted(NewClient(opts...)) +} diff --git a/vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/go.mod b/vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/go.mod new file mode 100644 index 000000000..203edcc86 --- /dev/null +++ b/vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/go.mod @@ -0,0 +1,80 @@ +module go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp + +go 1.16 + +require ( + github.com/stretchr/testify v1.7.0 + go.opentelemetry.io/otel v1.3.0 + go.opentelemetry.io/otel/exporters/otlp/internal/retry v1.3.0 + go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.3.0 + go.opentelemetry.io/otel/sdk v1.3.0 + go.opentelemetry.io/otel/trace v1.3.0 + go.opentelemetry.io/proto/otlp v0.11.0 + google.golang.org/protobuf v1.27.1 +) + +replace go.opentelemetry.io/otel/exporters/otlp/otlptrace => ../ + +replace go.opentelemetry.io/otel => ../../../.. + +replace go.opentelemetry.io/otel/bridge/opencensus => ../../../../bridge/opencensus + +replace go.opentelemetry.io/otel/bridge/opentracing => ../../../../bridge/opentracing + +replace go.opentelemetry.io/otel/example/jaeger => ../../../../example/jaeger + +replace go.opentelemetry.io/otel/example/namedtracer => ../../../../example/namedtracer + +replace go.opentelemetry.io/otel/example/opencensus => ../../../../example/opencensus + +replace go.opentelemetry.io/otel/example/otel-collector => ../../../../example/otel-collector + +replace go.opentelemetry.io/otel/example/passthrough => ../../../../example/passthrough + +replace go.opentelemetry.io/otel/example/prom-collector => ../../../../example/prom-collector + +replace go.opentelemetry.io/otel/example/prometheus => ../../../../example/prometheus + +replace go.opentelemetry.io/otel/example/zipkin => ../../../../example/zipkin + +replace go.opentelemetry.io/otel/exporters/prometheus => ../../../prometheus + +replace go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc => ../otlptracegrpc + +replace go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp => ./ + +replace go.opentelemetry.io/otel/exporters/jaeger => ../../../jaeger + +replace go.opentelemetry.io/otel/exporters/zipkin => ../../../zipkin + +replace go.opentelemetry.io/otel/internal/tools => ../../../../internal/tools + +replace go.opentelemetry.io/otel/metric => ../../../../metric + +replace go.opentelemetry.io/otel/sdk => ../../../../sdk + +replace go.opentelemetry.io/otel/sdk/export/metric => ../../../../sdk/export/metric + +replace go.opentelemetry.io/otel/sdk/metric => ../../../../sdk/metric + +replace go.opentelemetry.io/otel/trace => ../../../../trace + +replace go.opentelemetry.io/otel/internal/metric => ../../../../internal/metric + +replace go.opentelemetry.io/otel/exporters/otlp/otlpmetric => ../../otlpmetric + +replace go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc => ../../otlpmetric/otlpmetricgrpc + +replace go.opentelemetry.io/otel/exporters/stdout/stdoutmetric => ../../../stdout/stdoutmetric + +replace go.opentelemetry.io/otel/exporters/stdout/stdouttrace => ../../../stdout/stdouttrace + +replace go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp => ../../otlpmetric/otlpmetrichttp + +replace go.opentelemetry.io/otel/bridge/opencensus/test => ../../../../bridge/opencensus/test + +replace go.opentelemetry.io/otel/example/fib => ../../../../example/fib + +replace go.opentelemetry.io/otel/schema => ../../../../schema + +replace go.opentelemetry.io/otel/exporters/otlp/internal/retry => ../../internal/retry diff --git a/vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/go.sum b/vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/go.sum new file mode 100644 index 000000000..154c31544 --- /dev/null +++ b/vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp/go.sum @@ -0,0 +1,138 @@ +cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY= +github.com/cenkalti/backoff/v4 v4.1.2 h1:6Yo7N8UP2K6LWZnW94DLVSSrbobcWdVzAYOisuDPIFo= +github.com/cenkalti/backoff/v4 v4.1.2/go.mod 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(the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package otlptracehttp // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp" + +import ( + "crypto/tls" + "time" + + "go.opentelemetry.io/otel/exporters/otlp/internal/retry" + "go.opentelemetry.io/otel/exporters/otlp/otlptrace/internal/otlpconfig" +) + +// Compression describes the compression used for payloads sent to the +// collector. +type Compression otlpconfig.Compression + +const ( + // NoCompression tells the driver to send payloads without + // compression. + NoCompression = Compression(otlpconfig.NoCompression) + // GzipCompression tells the driver to send payloads after + // compressing them with gzip. + GzipCompression = Compression(otlpconfig.GzipCompression) +) + +// Option applies an option to the HTTP client. +type Option interface { + applyHTTPOption(*otlpconfig.Config) +} + +// RetryConfig defines configuration for retrying batches in case of export +// failure using an exponential backoff. +type RetryConfig retry.Config + +type wrappedOption struct { + otlpconfig.HTTPOption +} + +func (w wrappedOption) applyHTTPOption(cfg *otlpconfig.Config) { + w.ApplyHTTPOption(cfg) +} + +// WithEndpoint allows one to set the address of the collector +// endpoint that the driver will use to send spans. If +// unset, it will instead try to use +// the default endpoint (localhost:4317). Note that the endpoint +// must not contain any URL path. +func WithEndpoint(endpoint string) Option { + return wrappedOption{otlpconfig.WithEndpoint(endpoint)} +} + +// WithCompression tells the driver to compress the sent data. +func WithCompression(compression Compression) Option { + return wrappedOption{otlpconfig.WithCompression(otlpconfig.Compression(compression))} +} + +// WithURLPath allows one to override the default URL path used +// for sending traces. If unset, default ("/v1/traces") will be used. +func WithURLPath(urlPath string) Option { + return wrappedOption{otlpconfig.WithURLPath(urlPath)} +} + +// WithTLSClientConfig can be used to set up a custom TLS +// configuration for the client used to send payloads to the +// collector. Use it if you want to use a custom certificate. +func WithTLSClientConfig(tlsCfg *tls.Config) Option { + return wrappedOption{otlpconfig.WithTLSClientConfig(tlsCfg)} +} + +// WithInsecure tells the driver to connect to the collector using the +// HTTP scheme, instead of HTTPS. +func WithInsecure() Option { + return wrappedOption{otlpconfig.WithInsecure()} +} + +// WithHeaders allows one to tell the driver to send additional HTTP +// headers with the payloads. Specifying headers like Content-Length, +// Content-Encoding and Content-Type may result in a broken driver. +func WithHeaders(headers map[string]string) Option { + return wrappedOption{otlpconfig.WithHeaders(headers)} +} + +// WithTimeout tells the driver the max waiting time for the backend to process +// each spans batch. If unset, the default will be 10 seconds. +func WithTimeout(duration time.Duration) Option { + return wrappedOption{otlpconfig.WithTimeout(duration)} +} + +// WithRetry configures the retry policy for transient errors that may occurs +// when exporting traces. An exponential back-off algorithm is used to ensure +// endpoints are not overwhelmed with retries. If unset, the default retry +// policy will retry after 5 seconds and increase exponentially after each +// error for a total of 1 minute. +func WithRetry(rc RetryConfig) Option { + return wrappedOption{otlpconfig.WithRetry(retry.Config(rc))} +} diff --git a/vendor/modules.txt b/vendor/modules.txt index d247c66e8..6f4c017e4 100644 --- a/vendor/modules.txt +++ b/vendor/modules.txt @@ -399,12 +399,16 @@ go.opentelemetry.io/otel/semconv/v1.7.0 # go.opentelemetry.io/otel/exporters/otlp/internal/retry v1.3.0 go.opentelemetry.io/otel/exporters/otlp/internal/retry # go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.3.0 +## explicit go.opentelemetry.io/otel/exporters/otlp/otlptrace go.opentelemetry.io/otel/exporters/otlp/otlptrace/internal/otlpconfig go.opentelemetry.io/otel/exporters/otlp/otlptrace/internal/tracetransform # go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.3.0 ## explicit go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc +# go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.3.0 +## explicit +go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp # go.opentelemetry.io/otel/sdk v1.3.0 ## explicit go.opentelemetry.io/otel/sdk/instrumentation