build(deps): bump go.opentelemetry.io/otel from 1.4.1 to 1.6.1 in /instrumentation/github.com/go-kit/kit/otelkit/example

[dependabot]

Bumps go.opentelemetry.io/otel from 1.4.1 to 1.6.1.

Release notes

Sourced from go.opentelemetry.io/otel's releases.

Release v1.6.1

Fixed

• The go.opentelemetry.io/otel/schema/* packages now use the correct schema URL for their SchemaURL constant. Instead of using "https://opentelemetry.io/schemas/v<version>" they now use the correct URL without a v prefix, "https://opentelemetry.io/schemas/<version>". (#2743, #2744)

Security

• Upgrade go.opentelemetry.io/proto/otlp from v0.12.0 to v0.12.1. This includes an indirect upgrade of github.com/grpc-ecosystem/grpc-gateway which resolves a vulnerability from gopkg.in/yaml.v2 in version v2.2.3. (#2724, #2728)

Release v1.5.0

Added

• Log the Exporters configuration in the TracerProviders message. (#2578)

• Added support to configure the span limits with environment variables. The following environment variables are supported. (#2606, #2637)

  • OTEL_SPAN_ATTRIBUTE_VALUE_LENGTH_LIMIT
  • OTEL_SPAN_ATTRIBUTE_COUNT_LIMIT
  • OTEL_SPAN_EVENT_COUNT_LIMIT
  • OTEL_EVENT_ATTRIBUTE_COUNT_LIMIT
  • OTEL_SPAN_LINK_COUNT_LIMIT
  • OTEL_LINK_ATTRIBUTE_COUNT_LIMIT

  If the provided environment variables are invalid (negative), the default values would be used.

• Rename the gc runtime name to go (#2560)

• Add resource container ID detection. (#2418)

• Add span attribute value length limit. The new AttributeValueLengthLimit field is added to the "go.opentelemetry.io/otel/sdk/trace".SpanLimits type to configure this limit for a TracerProvider. The default limit for this resource is "unlimited". (#2637)

• Add the WithRawSpanLimits option to go.opentelemetry.io/otel/sdk/trace. This option replaces the WithSpanLimits option. Zero or negative values will not be changed to the default value like WithSpanLimits does. Setting a limit to zero will effectively disable the related resource it limits and setting to a negative value will mean that resource is unlimited. Consequentially, limits should be constructed using NewSpanLimits and updated accordingly. (#2637)

Changed

• Drop oldest tracestate Member when capacity is reached. (#2592)
• Add event and link drop counts to the exported data from the oltptrace exporter. (#2601)
• Unify path cleaning functionally in the otlpmetric and otlptrace configuration. (#2639)
• Change the debug message from the sdk/trace.BatchSpanProcessor to reflect the count is cumulative. (#2640)
• Introduce new internal envconfig package for OTLP exporters. (#2608)
• If http.Request.Host is empty, fall back to use URL.Host when populating http.host in the semconv packages. (#2661)

Fixed

• Remove the OTLP trace exporter limit of SpanEvents when exporting. (#2616)
• Default to port 4318 instead of 4317 for the otlpmetrichttp and otlptracehttp client. (#2614, #2625)
• Unlimited span limits are now supported (negative values). (#2636, #2637)

Deprecated

... (truncated)

Changelog

Sourced from go.opentelemetry.io/otel's changelog.

[1.6.1] - 2022-03-28

Fixed

• The go.opentelemetry.io/otel/schema/* packages now use the correct schema URL for their SchemaURL constant. Instead of using "https://opentelemetry.io/schemas/v<version>" they now use the correct URL without a v prefix, "https://opentelemetry.io/schemas/<version>". (#2743, #2744)

Security

• Upgrade go.opentelemetry.io/proto/otlp from v0.12.0 to v0.12.1. This includes an indirect upgrade of github.com/grpc-ecosystem/grpc-gateway which resolves a vulnerability from gopkg.in/yaml.v2 in version v2.2.3. (#2724, #2728)

[1.6.0/0.28.0] - 2022-03-23

⚠️ Notice ⚠️

This update is a breaking change of the unstable Metrics API. Code instrumented with the go.opentelemetry.io/otel/metric will need to be modified.

Added

• Add metrics exponential histogram support. New mapping functions have been made available in sdk/metric/aggregator/exponential/mapping for other OpenTelemetry projects to take dependencies on. (#2502)
• Add Go 1.18 to our compatibility tests. (#2679)
• Allow configuring the Sampler with the OTEL_TRACES_SAMPLER and OTEL_TRACES_SAMPLER_ARG environment variables. (#2305, #2517)
• Add the metric/global for obtaining and setting the global MeterProvider. (#2660)

Changed

• The metrics API has been significantly changed to match the revised OpenTelemetry specification. High-level changes include:

  • Synchronous and asynchronous instruments are now handled by independent InstrumentProviders. These InstrumentProviders are managed with a Meter.
  • Synchronous and asynchronous instruments are grouped into their own packages based on value types.
  • Asynchronous callbacks can now be registered with a Meter.

  Be sure to check out the metric module documentation for more information on how to use the revised API. (#2587, #2660)

Fixed

• Fallback to general attribute limits when span specific ones are not set in the environment. (#2675, #2677)

[1.5.0] - 2022-03-16

Added

• Log the Exporters configuration in the TracerProviders message. (#2578)
• Added support to configure the span limits with environment variables. The following environment variables are supported. (#2606, #2637)

... (truncated)

Commits

• 8747a29 Release v1.6.1 (#2746)
• 1f8ad00 Fix schema URLs (#2744)
• b89da6f Bump google.golang.org/protobuf from 1.27.1 to 1.28.0 in /exporters/otlp/otlp...
• 9d61fd0 Bump google.golang.org/protobuf from 1.27.1 to 1.28.0 in /exporters/otlp/otlp...
• 465653d Bump github.com/golangci/golangci-lint from 1.45.0 to 1.45.2 in /internal/too...
• 0a7cf5a Document Resource options that potentially leak secrets (#2727)
• 7a1ebf7 Upgrade go.opentelemetry.io/proto/otlp v0.12.0 -> v0.12.1 (#2728)
• 0024f7c Fix link to the Go otel package (#2726)
• 70a5446 Apply fix from #2674 to all applicable lines (#2719)
• 4399e22 Update CHANGELOG.md (#2721)
• Additional commits viewable in compare view

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