rebase: update kubernetes to 1.26.1

update kubernetes and its dependencies
to v1.26.1

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
This commit is contained in:
Madhu Rajanna
2023-02-01 18:06:36 +01:00
committed by mergify[bot]
parent e9e33fb851
commit 9c8de9471e
937 changed files with 75539 additions and 33050 deletions

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# OpenTelemetry-Go OTLP Span Exporter
[![Go Reference](https://pkg.go.dev/badge/go.opentelemetry.io/otel/exporters/otlp/otlptrace.svg)](https://pkg.go.dev/go.opentelemetry.io/otel/exporters/otlp/otlptrace)
[OpenTelemetry Protocol Exporter](https://github.com/open-telemetry/opentelemetry-specification/blob/v1.5.0/specification/protocol/exporter.md) implementation.
## Installation
```
go get -u go.opentelemetry.io/otel/exporters/otlp/otlptrace
```
## Examples
- [Exporter setup and examples](./otlptracehttp/example_test.go)
- [Full example sending telemetry to a local collector](../../../example/otel-collector)
## [`otlptrace`](https://pkg.go.dev/go.opentelemetry.io/otel/exporters/otlp/otlptrace)
The `otlptrace` package provides an exporter implementing the OTel span exporter interface.
This exporter is configured using a client satisfying the `otlptrace.Client` interface.
This client handles the transformation of data into wire format and the transmission of that data to the collector.
## [`otlptracegrpc`](https://pkg.go.dev/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc)
The `otlptracegrpc` package implements a client for the span exporter that sends trace telemetry data to the collector using gRPC with protobuf-encoded payloads.
## [`otlptracehttp`](https://pkg.go.dev/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp)
The `otlptracehttp` package implements a client for the span exporter that sends trace telemetry data to the collector using HTTP with protobuf-encoded payloads.
## Configuration
### Environment Variables
The following environment variables can be used (instead of options objects) to
override the default configuration. For more information about how each of
these environment variables is interpreted, see [the OpenTelemetry
specification](https://github.com/open-telemetry/opentelemetry-specification/blob/v1.8.0/specification/protocol/exporter.md).
| Environment variable | Option | Default value |
| ------------------------------------------------------------------------ |------------------------------ | -------------------------------------------------------- |
| `OTEL_EXPORTER_OTLP_ENDPOINT` `OTEL_EXPORTER_OTLP_TRACES_ENDPOINT` | `WithEndpoint` `WithInsecure` | `https://localhost:4317` or `https://localhost:4318`[^1] |
| `OTEL_EXPORTER_OTLP_CERTIFICATE` `OTEL_EXPORTER_OTLP_TRACES_CERTIFICATE` | `WithTLSClientConfig` | |
| `OTEL_EXPORTER_OTLP_HEADERS` `OTEL_EXPORTER_OTLP_TRACES_HEADERS` | `WithHeaders` | |
| `OTEL_EXPORTER_OTLP_COMPRESSION` `OTEL_EXPORTER_OTLP_TRACES_COMPRESSION` | `WithCompression` | |
| `OTEL_EXPORTER_OTLP_TIMEOUT` `OTEL_EXPORTER_OTLP_TRACES_TIMEOUT` | `WithTimeout` | `10s` |
[^1]: The gRPC client defaults to `https://localhost:4317` and the HTTP client `https://localhost:4318`.
Configuration using options have precedence over the environment variables.

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// 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 otlptrace // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace"
import (
"context"
tracepb "go.opentelemetry.io/proto/otlp/trace/v1"
)
// Client manages connections to the collector, handles the
// transformation of data into wire format, and the transmission of that
// data to the collector.
type Client interface {
// DO NOT CHANGE: any modification will not be backwards compatible and
// must never be done outside of a new major release.
// Start should establish connection(s) to endpoint(s). It is
// called just once by the exporter, so the implementation
// does not need to worry about idempotence and locking.
Start(ctx context.Context) error
// DO NOT CHANGE: any modification will not be backwards compatible and
// must never be done outside of a new major release.
// Stop should close the connections. The function is called
// only once by the exporter, so the implementation does not
// need to worry about idempotence, but it may be called
// concurrently with UploadTraces, so proper
// locking is required. The function serves as a
// synchronization point - after the function returns, the
// process of closing connections is assumed to be finished.
Stop(ctx context.Context) error
// DO NOT CHANGE: any modification will not be backwards compatible and
// must never be done outside of a new major release.
// UploadTraces should transform the passed traces to the wire
// format and send it to the collector. May be called
// concurrently.
UploadTraces(ctx context.Context, protoSpans []*tracepb.ResourceSpans) error
// DO NOT CHANGE: any modification will not be backwards compatible and
// must never be done outside of a new major release.
}

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// 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 otlptrace // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace"
import (
"context"
"errors"
"sync"
"go.opentelemetry.io/otel/exporters/otlp/otlptrace/internal/tracetransform"
tracesdk "go.opentelemetry.io/otel/sdk/trace"
)
var (
errAlreadyStarted = errors.New("already started")
)
// Exporter exports trace data in the OTLP wire format.
type Exporter struct {
client Client
mu sync.RWMutex
started bool
startOnce sync.Once
stopOnce sync.Once
}
// ExportSpans exports a batch of spans.
func (e *Exporter) ExportSpans(ctx context.Context, ss []tracesdk.ReadOnlySpan) error {
protoSpans := tracetransform.Spans(ss)
if len(protoSpans) == 0 {
return nil
}
return e.client.UploadTraces(ctx, protoSpans)
}
// Start establishes a connection to the receiving endpoint.
func (e *Exporter) Start(ctx context.Context) error {
var err = errAlreadyStarted
e.startOnce.Do(func() {
e.mu.Lock()
e.started = true
e.mu.Unlock()
err = e.client.Start(ctx)
})
return err
}
// Shutdown flushes all exports and closes all connections to the receiving endpoint.
func (e *Exporter) Shutdown(ctx context.Context) error {
e.mu.RLock()
started := e.started
e.mu.RUnlock()
if !started {
return nil
}
var err error
e.stopOnce.Do(func() {
err = e.client.Stop(ctx)
e.mu.Lock()
e.started = false
e.mu.Unlock()
})
return err
}
var _ tracesdk.SpanExporter = (*Exporter)(nil)
// New constructs a new Exporter and starts it.
func New(ctx context.Context, client Client) (*Exporter, error) {
exp := NewUnstarted(client)
if err := exp.Start(ctx); err != nil {
return nil, err
}
return exp, nil
}
// NewUnstarted constructs a new Exporter and does not start it.
func NewUnstarted(client Client) *Exporter {
return &Exporter{
client: client,
}
}
// MarshalLog is the marshaling function used by the logging system to represent this exporter.
func (e *Exporter) MarshalLog() interface{} {
return struct {
Type string
Client Client
}{
Type: "otlptrace",
Client: e.client,
}
}

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// 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 otlpconfig // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/internal/otlpconfig"
import (
"crypto/tls"
"net/url"
"os"
"path"
"strings"
"time"
"go.opentelemetry.io/otel/exporters/otlp/internal/envconfig"
)
// DefaultEnvOptionsReader is the default environments reader.
var DefaultEnvOptionsReader = envconfig.EnvOptionsReader{
GetEnv: os.Getenv,
ReadFile: os.ReadFile,
Namespace: "OTEL_EXPORTER_OTLP",
}
// ApplyGRPCEnvConfigs applies the env configurations for gRPC.
func ApplyGRPCEnvConfigs(cfg Config) Config {
opts := getOptionsFromEnv()
for _, opt := range opts {
cfg = opt.ApplyGRPCOption(cfg)
}
return cfg
}
// ApplyHTTPEnvConfigs applies the env configurations for HTTP.
func ApplyHTTPEnvConfigs(cfg Config) Config {
opts := getOptionsFromEnv()
for _, opt := range opts {
cfg = opt.ApplyHTTPOption(cfg)
}
return cfg
}
func getOptionsFromEnv() []GenericOption {
opts := []GenericOption{}
DefaultEnvOptionsReader.Apply(
envconfig.WithURL("ENDPOINT", func(u *url.URL) {
opts = append(opts, withEndpointScheme(u))
opts = append(opts, newSplitOption(func(cfg Config) Config {
cfg.Traces.Endpoint = u.Host
// For OTLP/HTTP endpoint URLs without a per-signal
// configuration, the passed endpoint is used as a base URL
// and the signals are sent to these paths relative to that.
cfg.Traces.URLPath = path.Join(u.Path, DefaultTracesPath)
return cfg
}, withEndpointForGRPC(u)))
}),
envconfig.WithURL("TRACES_ENDPOINT", func(u *url.URL) {
opts = append(opts, withEndpointScheme(u))
opts = append(opts, newSplitOption(func(cfg Config) Config {
cfg.Traces.Endpoint = u.Host
// For endpoint URLs for OTLP/HTTP per-signal variables, the
// URL MUST be used as-is without any modification. The only
// exception is that if an URL contains no path part, the root
// path / MUST be used.
path := u.Path
if path == "" {
path = "/"
}
cfg.Traces.URLPath = path
return cfg
}, withEndpointForGRPC(u)))
}),
envconfig.WithTLSConfig("CERTIFICATE", func(c *tls.Config) { opts = append(opts, WithTLSClientConfig(c)) }),
envconfig.WithTLSConfig("TRACES_CERTIFICATE", func(c *tls.Config) { opts = append(opts, WithTLSClientConfig(c)) }),
envconfig.WithHeaders("HEADERS", func(h map[string]string) { opts = append(opts, WithHeaders(h)) }),
envconfig.WithHeaders("TRACES_HEADERS", func(h map[string]string) { opts = append(opts, WithHeaders(h)) }),
WithEnvCompression("COMPRESSION", func(c Compression) { opts = append(opts, WithCompression(c)) }),
WithEnvCompression("TRACES_COMPRESSION", func(c Compression) { opts = append(opts, WithCompression(c)) }),
envconfig.WithDuration("TIMEOUT", func(d time.Duration) { opts = append(opts, WithTimeout(d)) }),
envconfig.WithDuration("TRACES_TIMEOUT", func(d time.Duration) { opts = append(opts, WithTimeout(d)) }),
)
return opts
}
func withEndpointScheme(u *url.URL) GenericOption {
switch strings.ToLower(u.Scheme) {
case "http", "unix":
return WithInsecure()
default:
return WithSecure()
}
}
func withEndpointForGRPC(u *url.URL) func(cfg Config) Config {
return func(cfg Config) Config {
// For OTLP/gRPC endpoints, this is the target to which the
// exporter is going to send telemetry.
cfg.Traces.Endpoint = path.Join(u.Host, u.Path)
return cfg
}
}
// WithEnvCompression retrieves the specified config and passes it to ConfigFn as a Compression.
func WithEnvCompression(n string, fn func(Compression)) func(e *envconfig.EnvOptionsReader) {
return func(e *envconfig.EnvOptionsReader) {
if v, ok := e.GetEnvValue(n); ok {
cp := NoCompression
if v == "gzip" {
cp = GzipCompression
}
fn(cp)
}
}
}

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// 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 otlpconfig // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/internal/otlpconfig"
import (
"crypto/tls"
"fmt"
"time"
"google.golang.org/grpc"
"google.golang.org/grpc/backoff"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/credentials/insecure"
"google.golang.org/grpc/encoding/gzip"
"go.opentelemetry.io/otel/exporters/otlp/internal"
"go.opentelemetry.io/otel/exporters/otlp/internal/retry"
)
const (
// DefaultTracesPath is a default URL path for endpoint that
// receives spans.
DefaultTracesPath string = "/v1/traces"
// DefaultTimeout is a default max waiting time for the backend to process
// each span batch.
DefaultTimeout time.Duration = 10 * time.Second
)
type (
SignalConfig struct {
Endpoint string
Insecure bool
TLSCfg *tls.Config
Headers map[string]string
Compression Compression
Timeout time.Duration
URLPath string
// gRPC configurations
GRPCCredentials credentials.TransportCredentials
}
Config struct {
// Signal specific configurations
Traces SignalConfig
RetryConfig retry.Config
// gRPC configurations
ReconnectionPeriod time.Duration
ServiceConfig string
DialOptions []grpc.DialOption
GRPCConn *grpc.ClientConn
}
)
// NewHTTPConfig returns a new Config with all settings applied from opts and
// any unset setting using the default HTTP config values.
func NewHTTPConfig(opts ...HTTPOption) Config {
cfg := Config{
Traces: SignalConfig{
Endpoint: fmt.Sprintf("%s:%d", DefaultCollectorHost, DefaultCollectorHTTPPort),
URLPath: DefaultTracesPath,
Compression: NoCompression,
Timeout: DefaultTimeout,
},
RetryConfig: retry.DefaultConfig,
}
cfg = ApplyHTTPEnvConfigs(cfg)
for _, opt := range opts {
cfg = opt.ApplyHTTPOption(cfg)
}
cfg.Traces.URLPath = internal.CleanPath(cfg.Traces.URLPath, DefaultTracesPath)
return cfg
}
// NewGRPCConfig returns a new Config with all settings applied from opts and
// any unset setting using the default gRPC config values.
func NewGRPCConfig(opts ...GRPCOption) Config {
cfg := Config{
Traces: SignalConfig{
Endpoint: fmt.Sprintf("%s:%d", DefaultCollectorHost, DefaultCollectorGRPCPort),
URLPath: DefaultTracesPath,
Compression: NoCompression,
Timeout: DefaultTimeout,
},
RetryConfig: retry.DefaultConfig,
}
cfg = ApplyGRPCEnvConfigs(cfg)
for _, opt := range opts {
cfg = opt.ApplyGRPCOption(cfg)
}
if cfg.ServiceConfig != "" {
cfg.DialOptions = append(cfg.DialOptions, grpc.WithDefaultServiceConfig(cfg.ServiceConfig))
}
// Priroritize GRPCCredentials over Insecure (passing both is an error).
if cfg.Traces.GRPCCredentials != nil {
cfg.DialOptions = append(cfg.DialOptions, grpc.WithTransportCredentials(cfg.Traces.GRPCCredentials))
} else if cfg.Traces.Insecure {
cfg.DialOptions = append(cfg.DialOptions, grpc.WithTransportCredentials(insecure.NewCredentials()))
} else {
// Default to using the host's root CA.
creds := credentials.NewTLS(nil)
cfg.Traces.GRPCCredentials = creds
cfg.DialOptions = append(cfg.DialOptions, grpc.WithTransportCredentials(creds))
}
if cfg.Traces.Compression == GzipCompression {
cfg.DialOptions = append(cfg.DialOptions, grpc.WithDefaultCallOptions(grpc.UseCompressor(gzip.Name)))
}
if len(cfg.DialOptions) != 0 {
cfg.DialOptions = append(cfg.DialOptions, cfg.DialOptions...)
}
if cfg.ReconnectionPeriod != 0 {
p := grpc.ConnectParams{
Backoff: backoff.DefaultConfig,
MinConnectTimeout: cfg.ReconnectionPeriod,
}
cfg.DialOptions = append(cfg.DialOptions, grpc.WithConnectParams(p))
}
return cfg
}
type (
// GenericOption applies an option to the HTTP or gRPC driver.
GenericOption interface {
ApplyHTTPOption(Config) Config
ApplyGRPCOption(Config) Config
// A private method to prevent users implementing the
// interface and so future additions to it will not
// violate compatibility.
private()
}
// HTTPOption applies an option to the HTTP driver.
HTTPOption interface {
ApplyHTTPOption(Config) Config
// A private method to prevent users implementing the
// interface and so future additions to it will not
// violate compatibility.
private()
}
// GRPCOption applies an option to the gRPC driver.
GRPCOption interface {
ApplyGRPCOption(Config) Config
// A private method to prevent users implementing the
// interface and so future additions to it will not
// violate compatibility.
private()
}
)
// genericOption is an option that applies the same logic
// for both gRPC and HTTP.
type genericOption struct {
fn func(Config) Config
}
func (g *genericOption) ApplyGRPCOption(cfg Config) Config {
return g.fn(cfg)
}
func (g *genericOption) ApplyHTTPOption(cfg Config) Config {
return g.fn(cfg)
}
func (genericOption) private() {}
func newGenericOption(fn func(cfg Config) Config) GenericOption {
return &genericOption{fn: fn}
}
// splitOption is an option that applies different logics
// for gRPC and HTTP.
type splitOption struct {
httpFn func(Config) Config
grpcFn func(Config) Config
}
func (g *splitOption) ApplyGRPCOption(cfg Config) Config {
return g.grpcFn(cfg)
}
func (g *splitOption) ApplyHTTPOption(cfg Config) Config {
return g.httpFn(cfg)
}
func (splitOption) private() {}
func newSplitOption(httpFn func(cfg Config) Config, grpcFn func(cfg Config) Config) GenericOption {
return &splitOption{httpFn: httpFn, grpcFn: grpcFn}
}
// httpOption is an option that is only applied to the HTTP driver.
type httpOption struct {
fn func(Config) Config
}
func (h *httpOption) ApplyHTTPOption(cfg Config) Config {
return h.fn(cfg)
}
func (httpOption) private() {}
func NewHTTPOption(fn func(cfg Config) Config) HTTPOption {
return &httpOption{fn: fn}
}
// grpcOption is an option that is only applied to the gRPC driver.
type grpcOption struct {
fn func(Config) Config
}
func (h *grpcOption) ApplyGRPCOption(cfg Config) Config {
return h.fn(cfg)
}
func (grpcOption) private() {}
func NewGRPCOption(fn func(cfg Config) Config) GRPCOption {
return &grpcOption{fn: fn}
}
// Generic Options
func WithEndpoint(endpoint string) GenericOption {
return newGenericOption(func(cfg Config) Config {
cfg.Traces.Endpoint = endpoint
return cfg
})
}
func WithCompression(compression Compression) GenericOption {
return newGenericOption(func(cfg Config) Config {
cfg.Traces.Compression = compression
return cfg
})
}
func WithURLPath(urlPath string) GenericOption {
return newGenericOption(func(cfg Config) Config {
cfg.Traces.URLPath = urlPath
return cfg
})
}
func WithRetry(rc retry.Config) GenericOption {
return newGenericOption(func(cfg Config) Config {
cfg.RetryConfig = rc
return cfg
})
}
func WithTLSClientConfig(tlsCfg *tls.Config) GenericOption {
return newSplitOption(func(cfg Config) Config {
cfg.Traces.TLSCfg = tlsCfg.Clone()
return cfg
}, func(cfg Config) Config {
cfg.Traces.GRPCCredentials = credentials.NewTLS(tlsCfg)
return cfg
})
}
func WithInsecure() GenericOption {
return newGenericOption(func(cfg Config) Config {
cfg.Traces.Insecure = true
return cfg
})
}
func WithSecure() GenericOption {
return newGenericOption(func(cfg Config) Config {
cfg.Traces.Insecure = false
return cfg
})
}
func WithHeaders(headers map[string]string) GenericOption {
return newGenericOption(func(cfg Config) Config {
cfg.Traces.Headers = headers
return cfg
})
}
func WithTimeout(duration time.Duration) GenericOption {
return newGenericOption(func(cfg Config) Config {
cfg.Traces.Timeout = duration
return cfg
})
}

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@ -0,0 +1,48 @@
// 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 otlpconfig // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/internal/otlpconfig"
const (
// DefaultCollectorGRPCPort is the default gRPC port of the collector.
DefaultCollectorGRPCPort uint16 = 4317
// DefaultCollectorHTTPPort is the default HTTP port of the collector.
DefaultCollectorHTTPPort uint16 = 4318
// DefaultCollectorHost is the host address the Exporter will attempt
// connect to if no collector address is provided.
DefaultCollectorHost string = "localhost"
)
// Compression describes the compression used for payloads sent to the
// collector.
type Compression int
const (
// NoCompression tells the driver to send payloads without
// compression.
NoCompression Compression = iota
// GzipCompression tells the driver to send payloads after
// compressing them with gzip.
GzipCompression
)
// Marshaler describes the kind of message format sent to the collector.
type Marshaler int
const (
// MarshalProto tells the driver to send using the protobuf binary format.
MarshalProto Marshaler = iota
// MarshalJSON tells the driver to send using json format.
MarshalJSON
)

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@ -0,0 +1,34 @@
// 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 otlpconfig // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/internal/otlpconfig"
import (
"crypto/tls"
"crypto/x509"
"errors"
)
// CreateTLSConfig creates a tls.Config from a raw certificate bytes
// to verify a server certificate.
func CreateTLSConfig(certBytes []byte) (*tls.Config, error) {
cp := x509.NewCertPool()
if ok := cp.AppendCertsFromPEM(certBytes); !ok {
return nil, errors.New("failed to append certificate to the cert pool")
}
return &tls.Config{
RootCAs: cp,
}, nil
}

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@ -0,0 +1,158 @@
// 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 tracetransform // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/internal/tracetransform"
import (
"go.opentelemetry.io/otel/attribute"
"go.opentelemetry.io/otel/sdk/resource"
commonpb "go.opentelemetry.io/proto/otlp/common/v1"
)
// KeyValues transforms a slice of attribute KeyValues into OTLP key-values.
func KeyValues(attrs []attribute.KeyValue) []*commonpb.KeyValue {
if len(attrs) == 0 {
return nil
}
out := make([]*commonpb.KeyValue, 0, len(attrs))
for _, kv := range attrs {
out = append(out, KeyValue(kv))
}
return out
}
// Iterator transforms an attribute iterator into OTLP key-values.
func Iterator(iter attribute.Iterator) []*commonpb.KeyValue {
l := iter.Len()
if l == 0 {
return nil
}
out := make([]*commonpb.KeyValue, 0, l)
for iter.Next() {
out = append(out, KeyValue(iter.Attribute()))
}
return out
}
// ResourceAttributes transforms a Resource OTLP key-values.
func ResourceAttributes(res *resource.Resource) []*commonpb.KeyValue {
return Iterator(res.Iter())
}
// KeyValue transforms an attribute KeyValue into an OTLP key-value.
func KeyValue(kv attribute.KeyValue) *commonpb.KeyValue {
return &commonpb.KeyValue{Key: string(kv.Key), Value: Value(kv.Value)}
}
// Value transforms an attribute Value into an OTLP AnyValue.
func Value(v attribute.Value) *commonpb.AnyValue {
av := new(commonpb.AnyValue)
switch v.Type() {
case attribute.BOOL:
av.Value = &commonpb.AnyValue_BoolValue{
BoolValue: v.AsBool(),
}
case attribute.BOOLSLICE:
av.Value = &commonpb.AnyValue_ArrayValue{
ArrayValue: &commonpb.ArrayValue{
Values: boolSliceValues(v.AsBoolSlice()),
},
}
case attribute.INT64:
av.Value = &commonpb.AnyValue_IntValue{
IntValue: v.AsInt64(),
}
case attribute.INT64SLICE:
av.Value = &commonpb.AnyValue_ArrayValue{
ArrayValue: &commonpb.ArrayValue{
Values: int64SliceValues(v.AsInt64Slice()),
},
}
case attribute.FLOAT64:
av.Value = &commonpb.AnyValue_DoubleValue{
DoubleValue: v.AsFloat64(),
}
case attribute.FLOAT64SLICE:
av.Value = &commonpb.AnyValue_ArrayValue{
ArrayValue: &commonpb.ArrayValue{
Values: float64SliceValues(v.AsFloat64Slice()),
},
}
case attribute.STRING:
av.Value = &commonpb.AnyValue_StringValue{
StringValue: v.AsString(),
}
case attribute.STRINGSLICE:
av.Value = &commonpb.AnyValue_ArrayValue{
ArrayValue: &commonpb.ArrayValue{
Values: stringSliceValues(v.AsStringSlice()),
},
}
default:
av.Value = &commonpb.AnyValue_StringValue{
StringValue: "INVALID",
}
}
return av
}
func boolSliceValues(vals []bool) []*commonpb.AnyValue {
converted := make([]*commonpb.AnyValue, len(vals))
for i, v := range vals {
converted[i] = &commonpb.AnyValue{
Value: &commonpb.AnyValue_BoolValue{
BoolValue: v,
},
}
}
return converted
}
func int64SliceValues(vals []int64) []*commonpb.AnyValue {
converted := make([]*commonpb.AnyValue, len(vals))
for i, v := range vals {
converted[i] = &commonpb.AnyValue{
Value: &commonpb.AnyValue_IntValue{
IntValue: v,
},
}
}
return converted
}
func float64SliceValues(vals []float64) []*commonpb.AnyValue {
converted := make([]*commonpb.AnyValue, len(vals))
for i, v := range vals {
converted[i] = &commonpb.AnyValue{
Value: &commonpb.AnyValue_DoubleValue{
DoubleValue: v,
},
}
}
return converted
}
func stringSliceValues(vals []string) []*commonpb.AnyValue {
converted := make([]*commonpb.AnyValue, len(vals))
for i, v := range vals {
converted[i] = &commonpb.AnyValue{
Value: &commonpb.AnyValue_StringValue{
StringValue: v,
},
}
}
return converted
}

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@ -0,0 +1,30 @@
// 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 tracetransform // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/internal/tracetransform"
import (
"go.opentelemetry.io/otel/sdk/instrumentation"
commonpb "go.opentelemetry.io/proto/otlp/common/v1"
)
func InstrumentationScope(il instrumentation.Scope) *commonpb.InstrumentationScope {
if il == (instrumentation.Scope{}) {
return nil
}
return &commonpb.InstrumentationScope{
Name: il.Name,
Version: il.Version,
}
}

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@ -0,0 +1,28 @@
// 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 tracetransform // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/internal/tracetransform"
import (
"go.opentelemetry.io/otel/sdk/resource"
resourcepb "go.opentelemetry.io/proto/otlp/resource/v1"
)
// Resource transforms a Resource into an OTLP Resource.
func Resource(r *resource.Resource) *resourcepb.Resource {
if r == nil {
return nil
}
return &resourcepb.Resource{Attributes: ResourceAttributes(r)}
}

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@ -0,0 +1,205 @@
// 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 tracetransform // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/internal/tracetransform"
import (
"go.opentelemetry.io/otel/attribute"
"go.opentelemetry.io/otel/codes"
"go.opentelemetry.io/otel/sdk/instrumentation"
tracesdk "go.opentelemetry.io/otel/sdk/trace"
"go.opentelemetry.io/otel/trace"
tracepb "go.opentelemetry.io/proto/otlp/trace/v1"
)
// Spans transforms a slice of OpenTelemetry spans into a slice of OTLP
// ResourceSpans.
func Spans(sdl []tracesdk.ReadOnlySpan) []*tracepb.ResourceSpans {
if len(sdl) == 0 {
return nil
}
rsm := make(map[attribute.Distinct]*tracepb.ResourceSpans)
type key struct {
r attribute.Distinct
is instrumentation.Scope
}
ssm := make(map[key]*tracepb.ScopeSpans)
var resources int
for _, sd := range sdl {
if sd == nil {
continue
}
rKey := sd.Resource().Equivalent()
k := key{
r: rKey,
is: sd.InstrumentationScope(),
}
scopeSpan, iOk := ssm[k]
if !iOk {
// Either the resource or instrumentation scope were unknown.
scopeSpan = &tracepb.ScopeSpans{
Scope: InstrumentationScope(sd.InstrumentationScope()),
Spans: []*tracepb.Span{},
SchemaUrl: sd.InstrumentationScope().SchemaURL,
}
}
scopeSpan.Spans = append(scopeSpan.Spans, span(sd))
ssm[k] = scopeSpan
rs, rOk := rsm[rKey]
if !rOk {
resources++
// The resource was unknown.
rs = &tracepb.ResourceSpans{
Resource: Resource(sd.Resource()),
ScopeSpans: []*tracepb.ScopeSpans{scopeSpan},
SchemaUrl: sd.Resource().SchemaURL(),
}
rsm[rKey] = rs
continue
}
// The resource has been seen before. Check if the instrumentation
// library lookup was unknown because if so we need to add it to the
// ResourceSpans. Otherwise, the instrumentation library has already
// been seen and the append we did above will be included it in the
// ScopeSpans reference.
if !iOk {
rs.ScopeSpans = append(rs.ScopeSpans, scopeSpan)
}
}
// Transform the categorized map into a slice
rss := make([]*tracepb.ResourceSpans, 0, resources)
for _, rs := range rsm {
rss = append(rss, rs)
}
return rss
}
// span transforms a Span into an OTLP span.
func span(sd tracesdk.ReadOnlySpan) *tracepb.Span {
if sd == nil {
return nil
}
tid := sd.SpanContext().TraceID()
sid := sd.SpanContext().SpanID()
s := &tracepb.Span{
TraceId: tid[:],
SpanId: sid[:],
TraceState: sd.SpanContext().TraceState().String(),
Status: status(sd.Status().Code, sd.Status().Description),
StartTimeUnixNano: uint64(sd.StartTime().UnixNano()),
EndTimeUnixNano: uint64(sd.EndTime().UnixNano()),
Links: links(sd.Links()),
Kind: spanKind(sd.SpanKind()),
Name: sd.Name(),
Attributes: KeyValues(sd.Attributes()),
Events: spanEvents(sd.Events()),
DroppedAttributesCount: uint32(sd.DroppedAttributes()),
DroppedEventsCount: uint32(sd.DroppedEvents()),
DroppedLinksCount: uint32(sd.DroppedLinks()),
}
if psid := sd.Parent().SpanID(); psid.IsValid() {
s.ParentSpanId = psid[:]
}
return s
}
// status transform a span code and message into an OTLP span status.
func status(status codes.Code, message string) *tracepb.Status {
var c tracepb.Status_StatusCode
switch status {
case codes.Ok:
c = tracepb.Status_STATUS_CODE_OK
case codes.Error:
c = tracepb.Status_STATUS_CODE_ERROR
default:
c = tracepb.Status_STATUS_CODE_UNSET
}
return &tracepb.Status{
Code: c,
Message: message,
}
}
// links transforms span Links to OTLP span links.
func links(links []tracesdk.Link) []*tracepb.Span_Link {
if len(links) == 0 {
return nil
}
sl := make([]*tracepb.Span_Link, 0, len(links))
for _, otLink := range links {
// This redefinition is necessary to prevent otLink.*ID[:] copies
// being reused -- in short we need a new otLink per iteration.
otLink := otLink
tid := otLink.SpanContext.TraceID()
sid := otLink.SpanContext.SpanID()
sl = append(sl, &tracepb.Span_Link{
TraceId: tid[:],
SpanId: sid[:],
Attributes: KeyValues(otLink.Attributes),
DroppedAttributesCount: uint32(otLink.DroppedAttributeCount),
})
}
return sl
}
// spanEvents transforms span Events to an OTLP span events.
func spanEvents(es []tracesdk.Event) []*tracepb.Span_Event {
if len(es) == 0 {
return nil
}
events := make([]*tracepb.Span_Event, len(es))
// Transform message events
for i := 0; i < len(es); i++ {
events[i] = &tracepb.Span_Event{
Name: es[i].Name,
TimeUnixNano: uint64(es[i].Time.UnixNano()),
Attributes: KeyValues(es[i].Attributes),
DroppedAttributesCount: uint32(es[i].DroppedAttributeCount),
}
}
return events
}
// spanKind transforms a SpanKind to an OTLP span kind.
func spanKind(kind trace.SpanKind) tracepb.Span_SpanKind {
switch kind {
case trace.SpanKindInternal:
return tracepb.Span_SPAN_KIND_INTERNAL
case trace.SpanKindClient:
return tracepb.Span_SPAN_KIND_CLIENT
case trace.SpanKindServer:
return tracepb.Span_SPAN_KIND_SERVER
case trace.SpanKindProducer:
return tracepb.Span_SPAN_KIND_PRODUCER
case trace.SpanKindConsumer:
return tracepb.Span_SPAN_KIND_CONSUMER
default:
return tracepb.Span_SPAN_KIND_UNSPECIFIED
}
}

View File

@ -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. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
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within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
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within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
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Licensed under the Apache License, Version 2.0 (the "License");
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// 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 otlptracegrpc // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc"
import (
"context"
"errors"
"sync"
"time"
"google.golang.org/genproto/googleapis/rpc/errdetails"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/status"
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/exporters/otlp/internal"
"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"
)
type client struct {
endpoint string
dialOpts []grpc.DialOption
metadata metadata.MD
exportTimeout time.Duration
requestFunc retry.RequestFunc
// stopCtx is used as a parent context for all exports. Therefore, when it
// is canceled with the stopFunc all exports are canceled.
stopCtx context.Context
// stopFunc cancels stopCtx, stopping any active exports.
stopFunc context.CancelFunc
// ourConn keeps track of where conn was created: true if created here on
// Start, or false if passed with an option. This is important on Shutdown
// as the conn should only be closed if created here on start. Otherwise,
// it is up to the processes that passed the conn to close it.
ourConn bool
conn *grpc.ClientConn
tscMu sync.RWMutex
tsc coltracepb.TraceServiceClient
}
// Compile time check *client implements otlptrace.Client.
var _ otlptrace.Client = (*client)(nil)
// NewClient creates a new gRPC trace client.
func NewClient(opts ...Option) otlptrace.Client {
return newClient(opts...)
}
func newClient(opts ...Option) *client {
cfg := otlpconfig.NewGRPCConfig(asGRPCOptions(opts)...)
ctx, cancel := context.WithCancel(context.Background())
c := &client{
endpoint: cfg.Traces.Endpoint,
exportTimeout: cfg.Traces.Timeout,
requestFunc: cfg.RetryConfig.RequestFunc(retryable),
dialOpts: cfg.DialOptions,
stopCtx: ctx,
stopFunc: cancel,
conn: cfg.GRPCConn,
}
if len(cfg.Traces.Headers) > 0 {
c.metadata = metadata.New(cfg.Traces.Headers)
}
return c
}
// Start establishes a gRPC connection to the collector.
func (c *client) Start(ctx context.Context) error {
if c.conn == nil {
// If the caller did not provide a ClientConn when the client was
// created, create one using the configuration they did provide.
conn, err := grpc.DialContext(ctx, c.endpoint, c.dialOpts...)
if err != nil {
return err
}
// Keep track that we own the lifecycle of this conn and need to close
// it on Shutdown.
c.ourConn = true
c.conn = conn
}
// The otlptrace.Client interface states this method is called just once,
// so no need to check if already started.
c.tscMu.Lock()
c.tsc = coltracepb.NewTraceServiceClient(c.conn)
c.tscMu.Unlock()
return nil
}
var errAlreadyStopped = errors.New("the client is already stopped")
// Stop shuts down the client.
//
// Any active connections to a remote endpoint are closed if they were created
// by the client. Any gRPC connection passed during creation using
// WithGRPCConn will not be closed. It is the caller's responsibility to
// handle cleanup of that resource.
//
// This method synchronizes with the UploadTraces method of the client. It
// will wait for any active calls to that method to complete unimpeded, or it
// will cancel any active calls if ctx expires. If ctx expires, the context
// error will be forwarded as the returned error. All client held resources
// will still be released in this situation.
//
// If the client has already stopped, an error will be returned describing
// this.
func (c *client) Stop(ctx context.Context) error {
// Acquire the c.tscMu lock within the ctx lifetime.
acquired := make(chan struct{})
go func() {
c.tscMu.Lock()
close(acquired)
}()
var err error
select {
case <-ctx.Done():
// The Stop timeout is reached. Kill any remaining exports to force
// the clear of the lock and save the timeout error to return and
// signal the shutdown timed out before cleanly stopping.
c.stopFunc()
err = ctx.Err()
// To ensure the client is not left in a dirty state c.tsc needs to be
// set to nil. To avoid the race condition when doing this, ensure
// that all the exports are killed (initiated by c.stopFunc).
<-acquired
case <-acquired:
}
// Hold the tscMu lock for the rest of the function to ensure no new
// exports are started.
defer c.tscMu.Unlock()
// The otlptrace.Client interface states this method is called only
// once, but there is no guarantee it is called after Start. Ensure the
// client is started before doing anything and let the called know if they
// made a mistake.
if c.tsc == nil {
return errAlreadyStopped
}
// Clear c.tsc to signal the client is stopped.
c.tsc = nil
if c.ourConn {
closeErr := c.conn.Close()
// A context timeout error takes precedence over this error.
if err == nil && closeErr != nil {
err = closeErr
}
}
return err
}
var errShutdown = errors.New("the client is shutdown")
// UploadTraces sends a batch of spans.
//
// Retryable errors from the server will be handled according to any
// RetryConfig the client was created with.
func (c *client) UploadTraces(ctx context.Context, protoSpans []*tracepb.ResourceSpans) error {
// Hold a read lock to ensure a shut down initiated after this starts does
// not abandon the export. This read lock acquire has less priority than a
// write lock acquire (i.e. Stop), meaning if the client is shutting down
// this will come after the shut down.
c.tscMu.RLock()
defer c.tscMu.RUnlock()
if c.tsc == nil {
return errShutdown
}
ctx, cancel := c.exportContext(ctx)
defer cancel()
return c.requestFunc(ctx, func(iCtx context.Context) error {
resp, err := c.tsc.Export(iCtx, &coltracepb.ExportTraceServiceRequest{
ResourceSpans: protoSpans,
})
if resp != nil && resp.PartialSuccess != nil {
otel.Handle(internal.PartialSuccessToError(
internal.TracingPartialSuccess,
resp.PartialSuccess.RejectedSpans,
resp.PartialSuccess.ErrorMessage,
))
}
// nil is converted to OK.
if status.Code(err) == codes.OK {
// Success.
return nil
}
return err
})
}
// exportContext returns a copy of parent with an appropriate deadline and
// cancellation function.
//
// It is the callers responsibility to cancel the returned context once its
// use is complete, via the parent or directly with the returned CancelFunc, to
// ensure all resources are correctly released.
func (c *client) exportContext(parent context.Context) (context.Context, context.CancelFunc) {
var (
ctx context.Context
cancel context.CancelFunc
)
if c.exportTimeout > 0 {
ctx, cancel = context.WithTimeout(parent, c.exportTimeout)
} else {
ctx, cancel = context.WithCancel(parent)
}
if c.metadata.Len() > 0 {
ctx = metadata.NewOutgoingContext(ctx, c.metadata)
}
// Unify the client stopCtx with the parent.
go func() {
select {
case <-ctx.Done():
case <-c.stopCtx.Done():
// Cancel the export as the shutdown has timed out.
cancel()
}
}()
return ctx, cancel
}
// retryable returns if err identifies a request that can be retried and a
// duration to wait for if an explicit throttle time is included in err.
func retryable(err error) (bool, time.Duration) {
//func retryable(err error) (bool, time.Duration) {
s := status.Convert(err)
switch s.Code() {
case codes.Canceled,
codes.DeadlineExceeded,
codes.ResourceExhausted,
codes.Aborted,
codes.OutOfRange,
codes.Unavailable,
codes.DataLoss:
return true, throttleDelay(s)
}
// Not a retry-able error.
return false, 0
}
// throttleDelay returns a duration to wait for if an explicit throttle time
// is included in the response status.
func throttleDelay(s *status.Status) time.Duration {
for _, detail := range s.Details() {
if t, ok := detail.(*errdetails.RetryInfo); ok {
return t.RetryDelay.AsDuration()
}
}
return 0
}
// MarshalLog is the marshaling function used by the logging system to represent this Client.
func (c *client) MarshalLog() interface{} {
return struct {
Type string
Endpoint string
}{
Type: "otlphttpgrpc",
Endpoint: c.endpoint,
}
}

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// 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 otlptracegrpc // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc"
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...))
}

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// 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 otlptracegrpc // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc"
import (
"fmt"
"time"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials"
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/exporters/otlp/internal/retry"
"go.opentelemetry.io/otel/exporters/otlp/otlptrace/internal/otlpconfig"
)
// Option applies an option to the gRPC driver.
type Option interface {
applyGRPCOption(otlpconfig.Config) otlpconfig.Config
}
func asGRPCOptions(opts []Option) []otlpconfig.GRPCOption {
converted := make([]otlpconfig.GRPCOption, len(opts))
for i, o := range opts {
converted[i] = otlpconfig.NewGRPCOption(o.applyGRPCOption)
}
return converted
}
// RetryConfig defines configuration for retrying export of span batches that
// failed to be received by the target endpoint.
//
// This configuration does not define any network retry strategy. That is
// entirely handled by the gRPC ClientConn.
type RetryConfig retry.Config
type wrappedOption struct {
otlpconfig.GRPCOption
}
func (w wrappedOption) applyGRPCOption(cfg otlpconfig.Config) otlpconfig.Config {
return w.ApplyGRPCOption(cfg)
}
// WithInsecure disables client transport security for the exporter's gRPC
// connection just like grpc.WithInsecure()
// (https://pkg.go.dev/google.golang.org/grpc#WithInsecure) does. Note, by
// default, client security is required unless WithInsecure is used.
//
// This option has no effect if WithGRPCConn is used.
func WithInsecure() Option {
return wrappedOption{otlpconfig.WithInsecure()}
}
// WithEndpoint sets the target endpoint the exporter will connect to. If
// unset, localhost:4317 will be used as a default.
//
// This option has no effect if WithGRPCConn is used.
func WithEndpoint(endpoint string) Option {
return wrappedOption{otlpconfig.WithEndpoint(endpoint)}
}
// WithReconnectionPeriod set the minimum amount of time between connection
// attempts to the target endpoint.
//
// This option has no effect if WithGRPCConn is used.
func WithReconnectionPeriod(rp time.Duration) Option {
return wrappedOption{otlpconfig.NewGRPCOption(func(cfg otlpconfig.Config) otlpconfig.Config {
cfg.ReconnectionPeriod = rp
return cfg
})}
}
func compressorToCompression(compressor string) otlpconfig.Compression {
if compressor == "gzip" {
return otlpconfig.GzipCompression
}
otel.Handle(fmt.Errorf("invalid compression type: '%s', using no compression as default", compressor))
return otlpconfig.NoCompression
}
// WithCompressor sets the compressor for the gRPC client to use when sending
// requests. It is the responsibility of the caller to ensure that the
// compressor set has been registered with google.golang.org/grpc/encoding.
// This can be done by encoding.RegisterCompressor. Some compressors
// auto-register on import, such as gzip, which can be registered by calling
// `import _ "google.golang.org/grpc/encoding/gzip"`.
//
// This option has no effect if WithGRPCConn is used.
func WithCompressor(compressor string) Option {
return wrappedOption{otlpconfig.WithCompression(compressorToCompression(compressor))}
}
// WithHeaders will send the provided headers with each gRPC requests.
func WithHeaders(headers map[string]string) Option {
return wrappedOption{otlpconfig.WithHeaders(headers)}
}
// WithTLSCredentials allows the connection to use TLS credentials when
// talking to the server. It takes in grpc.TransportCredentials instead of say
// a Certificate file or a tls.Certificate, because the retrieving of these
// credentials can be done in many ways e.g. plain file, in code tls.Config or
// by certificate rotation, so it is up to the caller to decide what to use.
//
// This option has no effect if WithGRPCConn is used.
func WithTLSCredentials(creds credentials.TransportCredentials) Option {
return wrappedOption{otlpconfig.NewGRPCOption(func(cfg otlpconfig.Config) otlpconfig.Config {
cfg.Traces.GRPCCredentials = creds
return cfg
})}
}
// WithServiceConfig defines the default gRPC service config used.
//
// This option has no effect if WithGRPCConn is used.
func WithServiceConfig(serviceConfig string) Option {
return wrappedOption{otlpconfig.NewGRPCOption(func(cfg otlpconfig.Config) otlpconfig.Config {
cfg.ServiceConfig = serviceConfig
return cfg
})}
}
// WithDialOption sets explicit grpc.DialOptions to use when making a
// connection. The options here are appended to the internal grpc.DialOptions
// used so they will take precedence over any other internal grpc.DialOptions
// they might conflict with.
//
// This option has no effect if WithGRPCConn is used.
func WithDialOption(opts ...grpc.DialOption) Option {
return wrappedOption{otlpconfig.NewGRPCOption(func(cfg otlpconfig.Config) otlpconfig.Config {
cfg.DialOptions = opts
return cfg
})}
}
// WithGRPCConn sets conn as the gRPC ClientConn used for all communication.
//
// This option takes precedence over any other option that relates to
// establishing or persisting a gRPC connection to a target endpoint. Any
// other option of those types passed will be ignored.
//
// It is the callers responsibility to close the passed conn. The client
// Shutdown method will not close this connection.
func WithGRPCConn(conn *grpc.ClientConn) Option {
return wrappedOption{otlpconfig.NewGRPCOption(func(cfg otlpconfig.Config) otlpconfig.Config {
cfg.GRPCConn = conn
return cfg
})}
}
// WithTimeout sets the max amount of time a client will attempt to export a
// batch of spans. This takes precedence over any retry settings defined with
// WithRetry, once this time limit has been reached the export is abandoned
// and the batch of spans is dropped.
//
// If unset, the default timeout will be set to 10 seconds.
func WithTimeout(duration time.Duration) Option {
return wrappedOption{otlpconfig.WithTimeout(duration)}
}
// WithRetry sets the retry policy for transient retryable errors that may be
// returned by the target endpoint when exporting a batch of spans.
//
// If the target endpoint responds with not only a retryable error, but
// explicitly returns a backoff time in the response. That time will take
// precedence over these settings.
//
// These settings do not define any network retry strategy. That is entirely
// handled by the gRPC ClientConn.
//
// If unset, the default retry policy will be used. It will retry the export
// 5 seconds after receiving a retryable error and increase exponentially
// after each error for no more than a total time of 1 minute.
func WithRetry(settings RetryConfig) Option {
return wrappedOption{otlpconfig.WithRetry(retry.Config(settings))}
}