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bump to k8s 1.26-rc.1

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Amir Alavi
2022-12-03 17:44:51 -05:00
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201
vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc/LICENSE generated vendored Normal file
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295
vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc/client.go generated vendored Normal file
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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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vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc/exporter.go generated vendored Normal file
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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...))
}

189
vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc/options.go generated vendored Normal file
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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))}
}