Bump go.opentelemetry.io/otel/exporters/metric/prometheus from 0.13.0 to 0.21.0 in /example/prometheus

[dependabot]

Bumps go.opentelemetry.io/otel/exporters/metric/prometheus from 0.13.0 to 0.21.0.

Release notes

Sourced from go.opentelemetry.io/otel/exporters/metric/prometheus's releases.

Release v0.20.0

Added

• The OTLP exporter now has two new convenience functions, NewExportPipeline and InstallNewPipeline, setup and install the exporter in tracing and metrics pipelines. (#1373)
• Adds semantic conventions for exceptions. (#1492)
• Added Jaeger Environment variables: OTEL_EXPORTER_JAEGER_AGENT_HOST, OTEL_EXPORTER_JAEGER_AGENT_PORT These environment variables can be used to override Jaeger agent hostname and port (#1752)
• Option ExportTimeout was added to batch span processor. (#1755)
• trace.TraceFlags is now a defined type over byte and WithSampled(bool) TraceFlags and IsSampled() bool methods have been added to it. (#1770)
• The Event and Link struct types from the go.opentelemetry.io/otel package now include a DroppedAttributeCount field to record the number of attributes that were not recorded due to configured limits being reached. (#1771)
• The Jaeger exporter now reports dropped attributes for a Span event in the exported log. (#1771)
• Adds test to check BatchSpanProcessor ignores OnEnd and ForceFlush post Shutdown. (#1772)
• Extract resource attributes from the OTEL_RESOURCE_ATTRIBUTES environment variable and merge them with the resource.Default resource as well as resources provided to the TracerProvider and metric Controller. (#1785)
• Added WithOSType resource configuration option to set OS (Operating System) type resource attribute (os.type). (#1788)
• Added WithProcess* resource configuration options to set Process resource attributes. (#1788)
  • process.pid
  • process.executable.name
  • process.executable.path
  • process.command_args
  • process.owner
  • process.runtime.name
  • process.runtime.version
  • process.runtime.description
• Adds k8s.node.name and k8s.node.uid attribute keys to the semconv package. (#1789)
• Added support for configuring OTLP/HTTP and OTLP/gRPC Endpoints, TLS Certificates, Headers, Compression and Timeout via Environment Variables. (#1758, #1769 and #1811)
  • OTEL_EXPORTER_OTLP_ENDPOINT
  • OTEL_EXPORTER_OTLP_TRACES_ENDPOINT
  • OTEL_EXPORTER_OTLP_METRICS_ENDPOINT
  • OTEL_EXPORTER_OTLP_HEADERS
  • OTEL_EXPORTER_OTLP_TRACES_HEADERS
  • OTEL_EXPORTER_OTLP_METRICS_HEADERS
  • OTEL_EXPORTER_OTLP_COMPRESSION
  • OTEL_EXPORTER_OTLP_TRACES_COMPRESSION
  • OTEL_EXPORTER_OTLP_METRICS_COMPRESSION
  • OTEL_EXPORTER_OTLP_TIMEOUT
  • OTEL_EXPORTER_OTLP_TRACES_TIMEOUT
  • OTEL_EXPORTER_OTLP_METRICS_TIMEOUT
  • OTEL_EXPORTER_OTLP_CERTIFICATE
  • OTEL_EXPORTER_OTLP_TRACES_CERTIFICATE
  • OTEL_EXPORTER_OTLP_METRICS_CERTIFICATE
• Adds otlpgrpc.WithTimeout option for configuring timeout to the otlp/gRPC exporter. (#1821)

Fixed

• The Span.IsRecording implementation from go.opentelemetry.io/otel/sdk/trace always returns false when not being sampled. (#1750)
• The Jaeger exporter now correctly sets tags for the Span status code and message. This means it uses the correct tag keys ("otel.status_code", "otel.status_description") and does not set the status message as a tag unless it is set on the span. (#1761)
• The Jaeger exporter now correctly records Span event's names using the "event" key for a tag. Additionally, this tag is overridden, as specified in the OTel specification, if the event contains an attribute with that key. (#1768)
• Zipkin Exporter: Ensure mapping between OTel and Zipkin span data complies with the specification. (#1688)

... (truncated)

Changelog

Sourced from go.opentelemetry.io/otel/exporters/metric/prometheus's changelog.

[1.0.0-RC1] / 0.21.0 - 2021-06-18

With this release we are introducing a split in module versions. The tracing API and SDK are entering the v1.0.0 Release Candidate phase with v1.0.0-RC1 while the experimental metrics API and SDK continue with v0.x releases at v0.21.0. Modules at major version 1 or greater will not depend on modules with major version 0.

Added

• Adds otlpgrpc.WithRetryoption for configuring the retry policy for transient errors on the otlp/gRPC exporter. (#1832)
  • The following status codes are defined as transient errors:

    gRPC Status Code	Description
    1	Cancelled
    4	Deadline Exceeded
    8	Resource Exhausted
    10	Aborted
    10	Out of Range
    14	Unavailable
    15	Data Loss

• Added Status type to the go.opentelemetry.io/otel/sdk/trace package to represent the status of a span. (#1874)
• Added SpanStub type and its associated functions to the go.opentelemetry.io/otel/sdk/trace/tracetest package. This type can be used as a testing replacement for the SpanSnapshot that was removed from the go.opentelemetry.io/otel/sdk/trace package. (#1873)
• Adds support for scheme in OTEL_EXPORTER_OTLP_ENDPOINT according to the spec. (#1886)
• Adds trace.WithSchemaURL option for configuring the tracer with a Schema URL. (#1889)
• Added an example of using OpenTelemetry Go as a trace context forwarder. (#1912)
• ParseTraceState is added to the go.opentelemetry.io/otel/trace package. It can be used to decode a TraceState from a tracestate header string value. (#1937)
• Added Len method to the TraceState type in the go.opentelemetry.io/otel/trace package. This method returns the number of list-members the TraceState holds. (#1937)
• Creates package go.opentelemetry.io/otel/exporters/otlp/otlptrace that defines a trace exporter that uses a otlptrace.Client to send data. Creates package go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc implementing a gRPC otlptrace.Client and offers convenience functions, NewExportPipeline and InstallNewPipeline, to setup and install a otlptrace.Exporter in tracing .(#1922)
• Added Baggage, Member, and Property types to the go.opentelemetry.io/otel/baggage package along with their related functions. (#1967)
• Added ContextWithBaggage, ContextWithoutBaggage, and FromContext functions to the go.opentelemetry.io/otel/baggage package. These functions replace the Set, Value, ContextWithValue, ContextWithoutValue, and ContextWithEmpty functions from that package and directly work with the new Baggage type. (#1967)
• The OTEL_SERVICE_NAME environment variable is the preferred source for service.name, used by the environment resource detector if a service name is present both there and in OTEL_RESOURCE_ATTRIBUTES. (#1969)
• Creates package go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp implementing an HTTP otlptrace.Client and offers convenience functions, NewExportPipeline and InstallNewPipeline, to setup and install a otlptrace.Exporter in tracing. (#1963)
• Changes go.opentelemetry.io/otel/sdk/resource.NewWithAttributes to require a schema URL. The old function is still available as resource.NewSchemaless. This is a breaking change. (#1938)
• Several builtin resource detectors now correctly populate the schema URL. (#1938)
• Creates package go.opentelemetry.io/otel/exporters/otlp/otlpmetric that defines a metrics exporter that uses a otlpmetric.Client to send data.
• Creates package go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc implementing a gRPC otlpmetric.Client and offers convenience functions, New and NewUnstarted, to create an otlpmetric.Exporter.(#1991)
• Added go.opentelemetry.io/otel/exporters/stdout/stdouttrace exporter. (#2005)
• Added go.opentelemetry.io/otel/exporters/stdout/stdoutmetric exporter. (#2005)
• Added a TracerProvider() method to the "go.opentelemetry.io/otel/trace".Span interface. This can be used to obtain a TracerProvider from a given span that utilizes the same trace processing pipeline. (#2009)

Changed

• Make NewSplitDriver from go.opentelemetry.io/otel/exporters/otlp take variadic arguments instead of a SplitConfig item. NewSplitDriver now automatically implements an internal noopDriver for SplitConfig fields that are not initialized. (#1798)
• resource.New() now creates a Resource without builtin detectors. Previous behavior is now achieved by using WithBuiltinDetectors Option. (#1810)
• Move the Event type from the go.opentelemetry.io/otel package to the go.opentelemetry.io/otel/sdk/trace package. (#1846)

... (truncated)

Commits

• ced177b Pre-release 1.0.0-RC1 (#2013)
• 694c9a4 Interface stability documentation (#2012)
• 39fe809 Add span.TracerProvider() (#2009)
• d020e1a Add more tests for go.opentelemetry.io/otel/trace package. (#2004)
• 6d4a38f replace WithSyncer with WithBatcher in opencensus example (#2007)
• c30cd1d Split stdout exporter into stdouttrace and stdoutmetric (#2005)
• 80ca2b1 otlp: mark unix endpoints to work without transport security (#2001)
• 6514098 Update codecov ignore (#2006)
• 3be9813 Deprecate the exporters in the "trace" and "metric" sub-directories (#1993)
• 377f7ce remove WithTrace* options from otlptrace exporters (#1997)
• Additional commits viewable in compare view

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