Bump github.com/uber/jaeger-client-go

Bumps [github.com/uber/jaeger-client-go](https://github.com/uber/jaeger-client-go) from 2.23.1+incompatible to 2.24.0+incompatible.
- [Release notes](https://github.com/uber/jaeger-client-go/releases)
- [Changelog](https://github.com/jaegertracing/jaeger-client-go/blob/master/CHANGELOG.md)
- [Commits](https://github.com/uber/jaeger-client-go/compare/v2.23.1...v2.24.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

8 files changed, 79 insertions, 56 deletions

diff --git a/vendor/github.com/uber/jaeger-client-go/.travis.yml b/vendor/github.com/uber/jaeger-client-go/.travis.yml
index e81cc8805..f9c9a7776 100644
--- a/vendor/github.com/uber/jaeger-client-go/.travis.yml
+++ b/vendor/github.com/uber/jaeger-client-go/.travis.yml
@@ -7,22 +7,22 @@ dist: trusty
 
 matrix:
   include:
-  - go: 1.13.x
+  - go: 1.14.x
     env:
     - TESTS=true
     - USE_DEP=true
     - COVERAGE=true
-  - go: 1.13.x
+  - go: 1.14.x
     env:
     - USE_DEP=true
     - CROSSDOCK=true
-  - go: 1.13.x
+  - go: 1.14.x
     env:
     - TESTS=true
     - USE_DEP=false
     - USE_GLIDE=true
   # test with previous version of Go
-  - go: 1.12.x
+  - go: 1.13.x
     env:
     - TESTS=true
     - USE_DEP=true
diff --git a/vendor/github.com/uber/jaeger-client-go/CHANGELOG.md b/vendor/github.com/uber/jaeger-client-go/CHANGELOG.md
index 944feb2c8..6a7e3c5ca 100644
--- a/vendor/github.com/uber/jaeger-client-go/CHANGELOG.md
+++ b/vendor/github.com/uber/jaeger-client-go/CHANGELOG.md
@@ -1,6 +1,14 @@
 Changes by Version
 ==================
 
+2.24.0 (2020-06-14)
+-------------------
+- Mention FromEnv() in the README, docs, and examples (#518) -- Martin Lercher
+- Serialize access to RemotelyControlledSampler.sampler (#515) -- Dima
+- Override reporter config only when agent host/port is set in env (#513) -- ilylia
+- Converge on JAEGER_SAMPLING_ENDPOINT env variable (#511) -- Eundoo Song
+
+
 2.23.1 (2020-04-28)
 -------------------
 - Fix regression by handling nil logger correctly ([#507](https://github.com/jaegertracing/jaeger-client-go/pull/507)) -- Prithvi Raj
diff --git a/vendor/github.com/uber/jaeger-client-go/README.md b/vendor/github.com/uber/jaeger-client-go/README.md
index 7c348e73a..e7b13b1c2 100644
--- a/vendor/github.com/uber/jaeger-client-go/README.md
+++ b/vendor/github.com/uber/jaeger-client-go/README.md
@@ -44,28 +44,32 @@ and [config/example_test.go](./config/example_test.go).
 
 ### Environment variables
 
-The tracer can be initialized with values coming from environment variables. None of the env vars are required
-and all of them can be overridden via direct setting of the property on the configuration object.
+The tracer can be initialized with values coming from environment variables, if it is
+[built from a config](https://pkg.go.dev/github.com/uber/jaeger-client-go/config?tab=doc#Configuration.NewTracer)
+that was created via [FromEnv()](https://pkg.go.dev/github.com/uber/jaeger-client-go/config?tab=doc#FromEnv).
+None of the env vars are required and all of them can be overridden via direct setting 
+of the property on the configuration object.
 
 Property| Description
 --- | ---
-JAEGER_SERVICE_NAME | The service name
-JAEGER_AGENT_HOST | The hostname for communicating with agent via UDP
-JAEGER_AGENT_PORT | The port for communicating with agent via UDP
-JAEGER_ENDPOINT | The HTTP endpoint for sending spans directly to a collector, i.e. http://jaeger-collector:14268/api/traces
-JAEGER_USER | Username to send as part of "Basic" authentication to the collector endpoint
-JAEGER_PASSWORD | Password to send as part of "Basic" authentication to the collector endpoint
-JAEGER_REPORTER_LOG_SPANS | Whether the reporter should also log the spans
-JAEGER_REPORTER_MAX_QUEUE_SIZE | The reporter's maximum queue size
-JAEGER_REPORTER_FLUSH_INTERVAL | The reporter's flush interval, with units, e.g. "500ms" or "2s" ([valid units][timeunits])
-JAEGER_SAMPLER_TYPE | The sampler type
-JAEGER_SAMPLER_PARAM | The sampler parameter (number)
-JAEGER_SAMPLER_MANAGER_HOST_PORT | The HTTP endpoint when using the remote sampler, i.e. http://jaeger-agent:5778/sampling
-JAEGER_SAMPLER_MAX_OPERATIONS | The maximum number of operations that the sampler will keep track of
-JAEGER_SAMPLER_REFRESH_INTERVAL | How often the remotely controlled sampler will poll jaeger-agent for the appropriate sampling strategy, with units, e.g. "1m" or "30s" ([valid units][timeunits])
-JAEGER_TAGS | A comma separated list of `name = value` tracer level tags, which get added to all reported spans. The value can also refer to an environment variable using the format `${envVarName:default}`, where the `:default` is optional, and identifies a value to be used if the environment variable cannot be found
-JAEGER_DISABLED | Whether the tracer is disabled or not. If true, the default `opentracing.NoopTracer` is used.
-JAEGER_RPC_METRICS | Whether to store RPC metrics
+JAEGER_SERVICE_NAME | The service name.
+JAEGER_AGENT_HOST | The hostname for communicating with agent via UDP (default `localhost`).
+JAEGER_AGENT_PORT | The port for communicating with agent via UDP (default `6831`).
+JAEGER_ENDPOINT | The HTTP endpoint for sending spans directly to a collector, i.e. http://jaeger-collector:14268/api/traces. If specified, the agent host/port are ignored.
+JAEGER_USER | Username to send as part of "Basic" authentication to the collector endpoint.
+JAEGER_PASSWORD | Password to send as part of "Basic" authentication to the collector endpoint.
+JAEGER_REPORTER_LOG_SPANS | Whether the reporter should also log the spans" `true` or `false` (default `false`).
+JAEGER_REPORTER_MAX_QUEUE_SIZE | The reporter's maximum queue size (default `100`).
+JAEGER_REPORTER_FLUSH_INTERVAL | The reporter's flush interval, with units, e.g. `500ms` or `2s` ([valid units][timeunits]; default `1s`).
+JAEGER_SAMPLER_TYPE | The sampler type: `remote`, `const`, `probabilistic`, `ratelimiting` (default `remote`). See also https://www.jaegertracing.io/docs/latest/sampling/.
+JAEGER_SAMPLER_PARAM | The sampler parameter (number).
+JAEGER_SAMPLER_MANAGER_HOST_PORT | (deprecated) The HTTP endpoint when using the `remote` sampler.
+JAEGER_SAMPLING_ENDPOINT | The URL for the sampling configuration server when using sampler type `remote` (default `http://127.0.0.1:5778/sampling`).
+JAEGER_SAMPLER_MAX_OPERATIONS | The maximum number of operations that the sampler will keep track of (default `2000`).
+JAEGER_SAMPLER_REFRESH_INTERVAL | How often the `remote` sampler should poll the configuration server for the appropriate sampling strategy, e.g. "1m" or "30s" ([valid units][timeunits]; default `1m`).
+JAEGER_TAGS | A comma separated list of `name=value` tracer-level tags, which get added to all reported spans. The value can also refer to an environment variable using the format `${envVarName:defaultValue}`.
+JAEGER_DISABLED | Whether the tracer is disabled or not. If `true`, the `opentracing.NoopTracer` is used (default `false`).
+JAEGER_RPC_METRICS | Whether to store RPC metrics, `true` or `false` (default `false`).
 
 By default, the client sends traces via UDP to the agent at `localhost:6831`. Use `JAEGER_AGENT_HOST` and
 `JAEGER_AGENT_PORT` to send UDP traces to a different `host:port`. If `JAEGER_ENDPOINT` is set, the client sends traces
diff --git a/vendor/github.com/uber/jaeger-client-go/RELEASE.md b/vendor/github.com/uber/jaeger-client-go/RELEASE.md
index 115e49ab8..12438d841 100644
--- a/vendor/github.com/uber/jaeger-client-go/RELEASE.md
+++ b/vendor/github.com/uber/jaeger-client-go/RELEASE.md
@@ -2,6 +2,7 @@
 
 1. Create a PR "Preparing for release X.Y.Z" against master branch
     * Alter CHANGELOG.md from `<placeholder_version> (unreleased)` to `<X.Y.Z> (YYYY-MM-DD)`
+    * Use `git log --pretty=format:'- %s -- %an'` as the basis for for changelog entries
     * Update `JaegerClientVersion` in constants.go to `Go-X.Y.Z`
 2. Create a release "Release X.Y.Z" on Github
     * Create Tag `vX.Y.Z`
diff --git a/vendor/github.com/uber/jaeger-client-go/config/config.go b/vendor/github.com/uber/jaeger-client-go/config/config.go
index 44e93533c..e6ffb987d 100644
--- a/vendor/github.com/uber/jaeger-client-go/config/config.go
+++ b/vendor/github.com/uber/jaeger-client-go/config/config.go
@@ -36,16 +36,16 @@ const defaultSamplingProbability = 0.001
 // Configuration configures and creates Jaeger Tracer
 type Configuration struct {
 	// ServiceName specifies the service name to use on the tracer.
-	// Can be provided via environment variable named JAEGER_SERVICE_NAME
+	// Can be provided by FromEnv() via the environment variable named JAEGER_SERVICE_NAME
 	ServiceName string `yaml:"serviceName"`
 
-	// Disabled can be provided via environment variable named JAEGER_DISABLED
+	// Disabled can be provided by FromEnv() via the environment variable named JAEGER_DISABLED
 	Disabled bool `yaml:"disabled"`
 
-	// RPCMetrics can be provided via environment variable named JAEGER_RPC_METRICS
+	// RPCMetrics can be provided by FromEnv() via the environment variable named JAEGER_RPC_METRICS
 	RPCMetrics bool `yaml:"rpc_metrics"`
 
-	// Tags can be provided via environment variable named JAEGER_TAGS
+	// Tags can be provided by FromEnv() via the environment variable named JAEGER_TAGS
 	Tags []opentracing.Tag `yaml:"tags"`
 
 	Sampler             *SamplerConfig             `yaml:"sampler"`
@@ -57,8 +57,8 @@ type Configuration struct {
 
 // SamplerConfig allows initializing a non-default sampler.  All fields are optional.
 type SamplerConfig struct {
-	// Type specifies the type of the sampler: const, probabilistic, rateLimiting, or remote
-	// Can be set by exporting an environment variable named JAEGER_SAMPLER_TYPE
+	// Type specifies the type of the sampler: const, probabilistic, rateLimiting, or remote.
+	// Can be provided by FromEnv() via the environment variable named JAEGER_SAMPLER_TYPE
 	Type string `yaml:"type"`
 
 	// Param is a value passed to the sampler.
@@ -69,22 +69,23 @@ type SamplerConfig struct {
 	// - for "remote" sampler, param is the same as for "probabilistic"
 	//   and indicates the initial sampling rate before the actual one
 	//   is received from the mothership.
-	// Can be set by exporting an environment variable named JAEGER_SAMPLER_PARAM
+	// Can be provided by FromEnv() via the environment variable named JAEGER_SAMPLER_PARAM
 	Param float64 `yaml:"param"`
 
-	// SamplingServerURL is the address of jaeger-agent's HTTP sampling server
-	// Can be set by exporting an environment variable named JAEGER_SAMPLER_MANAGER_HOST_PORT
+	// SamplingServerURL is the URL of sampling manager that can provide
+	// sampling strategy to this service.
+	// Can be provided by FromEnv() via the environment variable named JAEGER_SAMPLING_ENDPOINT
 	SamplingServerURL string `yaml:"samplingServerURL"`
 
 	// SamplingRefreshInterval controls how often the remotely controlled sampler will poll
-	// jaeger-agent for the appropriate sampling strategy.
-	// Can be set by exporting an environment variable named JAEGER_SAMPLER_REFRESH_INTERVAL
+	// sampling manager for the appropriate sampling strategy.
+	// Can be provided by FromEnv() via the environment variable named JAEGER_SAMPLER_REFRESH_INTERVAL
 	SamplingRefreshInterval time.Duration `yaml:"samplingRefreshInterval"`
 
 	// MaxOperations is the maximum number of operations that the PerOperationSampler
 	// will keep track of. If an operation is not tracked, a default probabilistic
 	// sampler will be used rather than the per operation specific sampler.
-	// Can be set by exporting an environment variable named JAEGER_SAMPLER_MAX_OPERATIONS.
+	// Can be provided by FromEnv() via the environment variable named JAEGER_SAMPLER_MAX_OPERATIONS.
 	MaxOperations int `yaml:"maxOperations"`
 
 	// Opt-in feature for applications that require late binding of span name via explicit
@@ -105,34 +106,35 @@ type ReporterConfig struct {
 	// QueueSize controls how many spans the reporter can keep in memory before it starts dropping
 	// new spans. The queue is continuously drained by a background go-routine, as fast as spans
 	// can be sent out of process.
-	// Can be set by exporting an environment variable named JAEGER_REPORTER_MAX_QUEUE_SIZE
+	// Can be provided by FromEnv() via the environment variable named JAEGER_REPORTER_MAX_QUEUE_SIZE
 	QueueSize int `yaml:"queueSize"`
 
 	// BufferFlushInterval controls how often the buffer is force-flushed, even if it's not full.
 	// It is generally not useful, as it only matters for very low traffic services.
-	// Can be set by exporting an environment variable named JAEGER_REPORTER_FLUSH_INTERVAL
+	// Can be provided by FromEnv() via the environment variable named JAEGER_REPORTER_FLUSH_INTERVAL
 	BufferFlushInterval time.Duration
 
 	// LogSpans, when true, enables LoggingReporter that runs in parallel with the main reporter
 	// and logs all submitted spans. Main Configuration.Logger must be initialized in the code
 	// for this option to have any effect.
-	// Can be set by exporting an environment variable named JAEGER_REPORTER_LOG_SPANS
+	// Can be provided by FromEnv() via the environment variable named JAEGER_REPORTER_LOG_SPANS
 	LogSpans bool `yaml:"logSpans"`
 
-	// LocalAgentHostPort instructs reporter to send spans to jaeger-agent at this address
-	// Can be set by exporting an environment variable named JAEGER_AGENT_HOST / JAEGER_AGENT_PORT
+	// LocalAgentHostPort instructs reporter to send spans to jaeger-agent at this address.
+	// Can be provided by FromEnv() via the environment variable named JAEGER_AGENT_HOST / JAEGER_AGENT_PORT
 	LocalAgentHostPort string `yaml:"localAgentHostPort"`
 
-	// CollectorEndpoint instructs reporter to send spans to jaeger-collector at this URL
-	// Can be set by exporting an environment variable named JAEGER_ENDPOINT
+	// CollectorEndpoint instructs reporter to send spans to jaeger-collector at this URL.
+	// Can be provided by FromEnv() via the environment variable named JAEGER_ENDPOINT
 	CollectorEndpoint string `yaml:"collectorEndpoint"`
 
 	// User instructs reporter to include a user for basic http authentication when sending spans to jaeger-collector.
-	// Can be set by exporting an environment variable named JAEGER_USER
+	// Can be provided by FromEnv() via the environment variable named JAEGER_USER
 	User string `yaml:"user"`
 
 	// Password instructs reporter to include a password for basic http authentication when sending spans to
-	// jaeger-collector. Can be set by exporting an environment variable named JAEGER_PASSWORD
+	// jaeger-collector.
+	// Can be provided by FromEnv() via the environment variable named JAEGER_PASSWORD
 	Password string `yaml:"password"`
 
 	// HTTPHeaders instructs the reporter to add these headers to the http request when reporting spans.
diff --git a/vendor/github.com/uber/jaeger-client-go/config/config_env.go b/vendor/github.com/uber/jaeger-client-go/config/config_env.go
index a729bd8fe..f38eb9d93 100644
--- a/vendor/github.com/uber/jaeger-client-go/config/config_env.go
+++ b/vendor/github.com/uber/jaeger-client-go/config/config_env.go
@@ -36,7 +36,8 @@ const (
 	envTags                   = "JAEGER_TAGS"
 	envSamplerType            = "JAEGER_SAMPLER_TYPE"
 	envSamplerParam           = "JAEGER_SAMPLER_PARAM"
-	envSamplerManagerHostPort = "JAEGER_SAMPLER_MANAGER_HOST_PORT"
+	envSamplerManagerHostPort = "JAEGER_SAMPLER_MANAGER_HOST_PORT" // Deprecated by envSamplingEndpoint
+	envSamplingEndpoint       = "JAEGER_SAMPLING_ENDPOINT"
 	envSamplerMaxOperations   = "JAEGER_SAMPLER_MAX_OPERATIONS"
 	envSamplerRefreshInterval = "JAEGER_SAMPLER_REFRESH_INTERVAL"
 	envReporterMaxQueueSize   = "JAEGER_REPORTER_MAX_QUEUE_SIZE"
@@ -118,7 +119,9 @@ func (sc *SamplerConfig) samplerConfigFromEnv() (*SamplerConfig, error) {
 		}
 	}
 
-	if e := os.Getenv(envSamplerManagerHostPort); e != "" {
+	if e := os.Getenv(envSamplingEndpoint); e != "" {
+		sc.SamplingServerURL = e
+	} else if e := os.Getenv(envSamplerManagerHostPort); e != "" {
 		sc.SamplingServerURL = e
 	} else if e := os.Getenv(envAgentHost); e != "" {
 		// Fallback if we know the agent host - try the sampling endpoint there
@@ -184,20 +187,25 @@ func (rc *ReporterConfig) reporterConfigFromEnv() (*ReporterConfig, error) {
 		rc.User = user
 		rc.Password = pswd
 	} else {
+		useEnv := false
 		host := jaeger.DefaultUDPSpanServerHost
 		if e := os.Getenv(envAgentHost); e != "" {
 			host = e
+			useEnv = true
 		}
 
 		port := jaeger.DefaultUDPSpanServerPort
 		if e := os.Getenv(envAgentPort); e != "" {
 			if value, err := strconv.ParseInt(e, 10, 0); err == nil {
 				port = int(value)
+				useEnv = true
 			} else {
 				return nil, errors.Wrapf(err, "cannot parse env var %s=%s", envAgentPort, e)
 			}
 		}
-		rc.LocalAgentHostPort = fmt.Sprintf("%s:%d", host, port)
+		if useEnv || rc.LocalAgentHostPort == "" {
+			rc.LocalAgentHostPort = fmt.Sprintf("%s:%d", host, port)
+		}
 	}
 
 	return rc, nil
diff --git a/vendor/github.com/uber/jaeger-client-go/constants.go b/vendor/github.com/uber/jaeger-client-go/constants.go
index 1f8578fbd..feaf344ad 100644
--- a/vendor/github.com/uber/jaeger-client-go/constants.go
+++ b/vendor/github.com/uber/jaeger-client-go/constants.go
@@ -22,7 +22,7 @@ import (
 
 const (
 	// JaegerClientVersion is the version of the client library reported as Span tag.
-	JaegerClientVersion = "Go-2.23.1"
+	JaegerClientVersion = "Go-2.24.0"
 
 	// JaegerClientVersionTagKey is the name of the tag used to report client version.
 	JaegerClientVersionTagKey = "jaeger.version"
@@ -102,5 +102,5 @@ const (
 
 var (
 	// DefaultSamplingServerURL is the default url to fetch sampling config from, via http
-	DefaultSamplingServerURL = fmt.Sprintf("http://localhost:%d/sampling", DefaultSamplingServerPort)
+	DefaultSamplingServerURL = fmt.Sprintf("http://127.0.0.1:%d/sampling", DefaultSamplingServerPort)
 )
diff --git a/vendor/github.com/uber/jaeger-client-go/sampler_remote.go b/vendor/github.com/uber/jaeger-client-go/sampler_remote.go
index 112e3e1cb..f2edd5ca9 100644
--- a/vendor/github.com/uber/jaeger-client-go/sampler_remote.go
+++ b/vendor/github.com/uber/jaeger-client-go/sampler_remote.go
@@ -64,7 +64,7 @@ type RemotelyControlledSampler struct {
 	// Cf. https://github.com/uber/jaeger-client-go/issues/155, https://goo.gl/zW7dgq
 	closed int64 // 0 - not closed, 1 - closed
 
-	sync.RWMutex
+	sync.RWMutex // used to serialize access to samplerOptions.sampler
 	samplerOptions
 
 	serviceName string
@@ -95,22 +95,22 @@ func (s *RemotelyControlledSampler) IsSampled(id TraceID, operation string) (boo
 
 // OnCreateSpan implements OnCreateSpan of SamplerV2.
 func (s *RemotelyControlledSampler) OnCreateSpan(span *Span) SamplingDecision {
-	return s.sampler.OnCreateSpan(span)
+	return s.Sampler().OnCreateSpan(span)
 }
 
 // OnSetOperationName implements OnSetOperationName of SamplerV2.
 func (s *RemotelyControlledSampler) OnSetOperationName(span *Span, operationName string) SamplingDecision {
-	return s.sampler.OnSetOperationName(span, operationName)
+	return s.Sampler().OnSetOperationName(span, operationName)
 }
 
 // OnSetTag implements OnSetTag of SamplerV2.
 func (s *RemotelyControlledSampler) OnSetTag(span *Span, key string, value interface{}) SamplingDecision {
-	return s.sampler.OnSetTag(span, key, value)
+	return s.Sampler().OnSetTag(span, key, value)
 }
 
 // OnFinishSpan implements OnFinishSpan of SamplerV2.
 func (s *RemotelyControlledSampler) OnFinishSpan(span *Span) SamplingDecision {
-	return s.sampler.OnFinishSpan(span)
+	return s.Sampler().OnFinishSpan(span)
 }
 
 // Close implements Close() of Sampler.
@@ -153,8 +153,8 @@ func (s *RemotelyControlledSampler) pollControllerWithTicker(ticker *time.Ticker
 
 // Sampler returns the currently active sampler.
 func (s *RemotelyControlledSampler) Sampler() SamplerV2 {
-	s.Lock()
-	defer s.Unlock()
+	s.RLock()
+	defer s.RUnlock()
 	return s.sampler
 }