Upgrade to v0.7.0 of go.opentelemetry.io/otel

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Related change log:

This release implements the v0.5.0 version of the OpenTelemetry specification.

Added

• The othttp instrumentation now includes default metrics. (otelecho: Refactor option type #861)
• This CHANGELOG file to track all changes in the project going forward.
• Support for array type attributes. (Bump google.golang.org/grpc from 1.37.1 to 1.38.0 in /instrumentation/google.golang.org/grpc/otelgrpc #798)
• Apply transitive dependabot go.mod dependency updates as part of a new automatic Github workflow. (Bump github.com/aws/aws-sdk-go from 1.38.68 to 1.39.0 in /detectors/aws #844)
• Timestamps are now passed to exporters for each export. (add opentelemetry support for gorm2 #835)
• Add new Accumulation type to metric SDK to transport telemetry from Accumulators to Processors.
  This replaces the prior Record struct use for this purpose. (add opentelemetry support for gorm2 #835)
• New dependabot integration to automate package upgrades. (Bump github.com/aws/aws-sdk-go from 1.38.51 to 1.38.55 in /detectors/aws #814)
• Meter and Tracer implementations accept instrumentation version version as an optional argument.
  This instrumentation version is passed on to exporters. (otelgrpc: Feature request: Track end-user IPs on gRPC requests #811) (Bump github.com/google/go-cmp from 0.5.5 to 0.5.6 in /exporters/metric/cortex #805) (Bump actions/cache from 2.1.5 to 2.1.6 #802)
• The OTLP exporter includes the instrumentation version in telemetry it exports. (otelgrpc: Feature request: Track end-user IPs on gRPC requests #811)
• Environment variables for Jaeger exporter are supported. (Bump github.com/gin-gonic/gin from 1.7.1 to 1.7.2 in /instrumentation/github.com/gin-gonic/gin/otelgin/example #796)
• New aggregation.Kind in the export metric API. (Bump github.com/google/go-cmp from 0.5.5 to 0.5.6 in /propagators/opencensus #808)
• New example that uses OTLP and the collector. (Prometheus as remote-write-receiver Encountered error 204 No Content #790)
• Handle errors in the span SetName during span initialization. (Add badge #791)
• Default service config to enable retries for retry-able failed requests in the OTLP exporter and an option to override this default. (Create .gitattributes #777)
• New go.opentelemetry.io/otel/api/oterror package to uniformly support error handling and definitions for the project. (Bump github.com/aws/aws-sdk-go from 1.38.36 to 1.38.40 in /detectors/aws #778)
• New global default implementation of the go.opentelemetry.io/otel/api/oterror.Handler interface to be used to handle errors prior to an user defined Handler.
  There is also functionality for the user to register their Handler as well as a convenience function Handle to handle an error with this global Handler(Bump github.com/aws/aws-sdk-go from 1.38.36 to 1.38.40 in /detectors/aws #778)
• Options to specify propagators for httptrace and grpctrace instrumentation. (Bump google.golang.org/grpc from 1.37.0 to 1.37.1 in /propagators/opencensus/examples #784)
• The required application/json header for the Zipkin exporter is included in all exports. (Bump go.mongodb.org/mongo-driver from 1.5.1 to 1.5.2 in /instrumentation/go.mongodb.org/mongo-driver/mongo/otelmongo #774)
• Integrate HTTP semantics helpers from the contrib repository into the api/standard package. Remove superfluous otelmongodb attribute names. Conform to specification. #769

Changed

• Rename Integrator to Processor in the metric SDK. (otelgrpc: Refactor option type #863)
• Rename AggregationSelector to AggregatorSelector. (otelgocql: Refactor option type #859)
• Rename SynchronizedCopy to SynchronizedMove. (otelkit: Refactor option type #858)
• Rename simple integrator to basic integrator. (otelgin: Refactor option type #857)
• Merge otlp collector examples. (v0.21.0 causes package conflict #841)
• Change the metric SDK to support cumulative, delta, and pass-through exporters directly.
  With these changes, cumulative and delta specific exporters are able to request the correct kind of aggregation from the SDK. (otelgrpc: fix goroutine leak after context cancellation #840)
• The Aggregator.Checkpoint API is renamed to SynchronizedCopy and adds an argument, a different Aggregator into which the copy is stored. (Add aws componenets benchmark #812)
• The export.Aggregator contract is that Update() and SynchronizedCopy() are synchronized with each other.
  All the aggregation interfaces (Sum, LastValue, ...) are not meant to be synchronized, as the caller is expected to synchronize aggregators at a higher level after the Accumulator.
  Some of the Aggregators used unnecessary locking and that has been cleaned up. (Add aws componenets benchmark #812)
• Use of metric.Number was replaced by int64 now that we use sync.Mutex in the MinMaxSumCount and Histogram Aggregators. (Add aws componenets benchmark #812)
• Replace AlwaysParentSample with ParentSample(fallback) to match the OpenTelemetry v0.5.0 specification. (Use singular form for directory names #810)
• Rename sdk/export/metric/aggregator to sdk/export/metric/aggregation. Bump github.com/google/go-cmp from 0.5.5 to 0.5.6 in /propagators/opencensus #808
• Send configured headers with every request in the OTLP exporter, instead of just on connection creation. (Bump github.com/google/go-cmp from 0.5.5 to 0.5.6 in /instrumentation/net/http/httptrace/otelhttptrace #806)
• Update error handling for any one off error handlers, replacing, instead, with the global.Handle function. (Add badge #791)
• Rename plugin directory to instrumentation to match the OpenTelemetry specification. (Bump github.com/Shopify/sarama from 1.28.0 to 1.29.0 in /instrumentation/github.com/Shopify/sarama/otelsarama/example #779)
• Makes the argument order to Histogram and DDSketch New() consistent. (Bump google.golang.org/grpc from 1.37.0 to 1.37.1 in /instrumentation/google.golang.org/grpc/otelgrpc/example #781)

Removed

• Uint64NumberKind and related functions from the API. (otelmacaron: Refactor option type #864)
• Context arguments from Aggregator.Checkpoint and Integrator.Process as they were unused. (Bump github.com/aws/aws-sdk-go from 1.38.45 to 1.38.51 in /detectors/aws #803)
• SpanID is no longer included in parameters for sampling decision to match the OpenTelemetry specification. (Bump github.com/labstack/echo/v4 from 4.2.2 to 4.3.0 in /instrumentation/github.com/labstack/echo/otelecho #775)

Fixed

• Upgrade OTLP exporter to opentelemetry-proto matching the opentelemetry-collector v0.4.0 release. (otelhttptrace: Refactor option type #866)
• Allow changes to go.sum and go.mod when running dependabot tidy-up. (Update instrumentation readme #871)
• Bump github.com/stretchr/testify from 1.4.0 to 1.6.1. (Bump github.com/golangci/golangci-lint from 1.40.1 to 1.41.1 in /tools #824)
• Bump github.com/prometheus/client_golang from 1.7.0 to 1.7.1 in /exporters/metric/prometheus. (runtime: Refactor option type #867)
• Bump google.golang.org/grpc from 1.29.1 to 1.30.0 in /exporters/trace/jaeger. (otelbeego: Refactor option type #853)
• Bump google.golang.org/grpc from 1.29.1 to 1.30.0 in /exporters/trace/zipkin. (otelaws: Refactor option type #854)
• Bumps github.com/golang/protobuf from 1.3.2 to 1.4.2 (Bump google.golang.org/grpc from 1.38.0 to 1.39.0 in /instrumentation/google.golang.org/grpc/otelgrpc #848)
• Bump github.com/stretchr/testify from 1.4.0 to 1.6.1 in /exporters/otlp (gcp: Cloud Run Application details are not labeled on traces #817)
• Bump github.com/golangci/golangci-lint from 1.25.1 to 1.27.0 in /tools (Add Instrumentation for AWS Lambda handler function #828)
• Bump github.com/prometheus/client_golang from 1.5.0 to 1.7.0 in /exporters/metric/prometheus (gRPC: provide the ability to set additional attributes for the generated spans #838)
• Bump github.com/stretchr/testify from 1.4.0 to 1.6.1 in /exporters/trace/jaeger (Added option to using a skipper in the echo otel middleware #829)
• Bump github.com/benbjohnson/clock from 1.0.0 to 1.0.3 (Bump cloud.google.com/go from 0.82.0 to 0.83.0 in /detectors/gcp #815)
• Bump github.com/stretchr/testify from 1.4.0 to 1.6.1 in /exporters/trace/zipkin (Bump github.com/aws/aws-sdk-go from 1.38.60 to 1.38.64 in /detectors/aws #823)
• Bump github.com/itchyny/gojq from 0.10.1 to 0.10.3 in /tools (Bump github.com/aws/aws-sdk-go from 1.38.64 to 1.38.68 in /detectors/aws #830)
• Bump github.com/stretchr/testify from 1.4.0 to 1.6.1 in /exporters/metric/prometheus (Pre-release v0.21.0 #822)
• Bump google.golang.org/grpc from 1.27.1 to 1.29.1 in /exporters/trace/zipkin (Bump cloud.google.com/go from 0.83.0 to 0.84.0 in /detectors/gcp #820)
• Bump google.golang.org/grpc from 1.27.1 to 1.29.1 in /exporters/trace/jaeger (Bump github.com/Shopify/sarama from 1.28.0 to 1.29.1 in /instrumentation/github.com/Shopify/sarama/otelsarama/example #831)
• Bump github.com/google/go-cmp from 0.4.0 to 0.5.0 (gRPC: fix goroutine leak if client stream CloseSend is not called. #836)
• Bump github.com/google/go-cmp from 0.4.0 to 0.5.0 in /exporters/trace/jaeger (Feature Request: Add support for filtering span attributes in net/http package #837)
• Bump github.com/google/go-cmp from 0.4.0 to 0.5.0 in /exporters/otlp (otelgrpc: goleaks if context canceled #839)
• Bump google.golang.org/api from 0.20.0 to 0.28.0 in /exporters/trace/jaeger (Add Instrumentation for gofiber/fiber #843)
• Set span status from HTTP status code in the othttp instrumentation. (Bump github.com/Shopify/sarama from 1.28.0 to 1.29.1 in /instrumentation/github.com/Shopify/sarama/otelsarama #832)
• Fixed typo in push controller comment. (Bump github.com/spf13/viper from 1.8.0 to 1.8.1 in /exporters/metric/cortex/utils #834)
• The Aggregator testing has been updated and cleaned. (Add aws componenets benchmark #812)
• metric.Number(0) expressions are replaced by 0 where possible. (Add aws componenets benchmark #812)
• Fixed global handler_test.go test failure. Bump github.com/google/go-cmp from 0.5.5 to 0.5.6 in /propagators #804
• Fixed BatchSpanProcessor.Shutdown to wait until all spans are processed. (Bump github.com/felixge/httpsnoop from 1.0.1 to 1.0.2 in /instrumentation/github.com/gorilla/mux/otelmux #766)
• Fixed OTLP example's accidental early close of exporter. (Bump github.com/google/go-cmp from 0.5.5 to 0.5.6 in /detectors/gcp #807)
• Ensure zipkin exporter reads and closes response body. (Resource dectection for Open-Source platforms should be distinct from cloud-provider detection #788)
• Update instrumentation to use api/standard keys instead of custom keys. (Bump golang.org/x/tools from 0.1.0 to 0.1.1 in /tools #782)
• Clean up tools and RELEASING documentation. (Typo #762)