Add initial metricstarttimeprocessor skeleton

.chloggen/metricstarttime-skeleton.yaml

@@ -0,0 +1,27 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: 'new_component'
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: metricstarttimeprocessor
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Add the initial skeleton for the metricsstarttimeprocessor
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [37186]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext: The component is still in development and is not ready for use.
+
+# If your change doesn't affect end users or the exported elements of any package,
+# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: [user, api]

.github/CODEOWNERS

@@ -182,6 +182,7 @@ processor/k8sattributesprocessor/                                @open-telemetry
 processor/logdedupprocessor/                                     @open-telemetry/collector-contrib-approvers @MikeGoldsmith @djaglowski
 processor/logstransformprocessor/                                @open-telemetry/collector-contrib-approvers @dehaansa
 processor/metricsgenerationprocessor/                            @open-telemetry/collector-contrib-approvers @Aneurysm9
+processor/metricstarttimeprocessor/                              @open-telemetry/collector-contrib-approvers @dashpole
 processor/metricstransformprocessor/                             @open-telemetry/collector-contrib-approvers @dmitryax
 processor/probabilisticsamplerprocessor/                         @open-telemetry/collector-contrib-approvers @jpkrohling @jmacd
 processor/redactionprocessor/                                    @open-telemetry/collector-contrib-approvers @dmitryax @mx-psi @TylerHelmuth

.github/ISSUE_TEMPLATE/bug_report.yaml

@@ -184,6 +184,7 @@ body:
       - processor/logdedup
       - processor/logstransform
       - processor/metricsgeneration
+      - processor/metricstarttime
       - processor/metricstransform
       - processor/probabilisticsampler
       - processor/redaction

.github/ISSUE_TEMPLATE/feature_request.yaml

@@ -178,6 +178,7 @@ body:
       - processor/logdedup
       - processor/logstransform
       - processor/metricsgeneration
+      - processor/metricstarttime
       - processor/metricstransform
       - processor/probabilisticsampler
       - processor/redaction

.github/ISSUE_TEMPLATE/other.yaml

@@ -178,6 +178,7 @@ body:
       - processor/logdedup
       - processor/logstransform
       - processor/metricsgeneration
+      - processor/metricstarttime
       - processor/metricstransform
       - processor/probabilisticsampler
       - processor/redaction

.github/ISSUE_TEMPLATE/unmaintained.yaml

@@ -183,6 +183,7 @@ body:
       - processor/logdedup
       - processor/logstransform
       - processor/metricsgeneration
+      - processor/metricstarttime
       - processor/metricstransform
       - processor/probabilisticsampler
       - processor/redaction

processor/metricstarttimeprocessor/Makefile

@@ -0,0 +1 @@
+include ../../Makefile.Common

processor/metricstarttimeprocessor/README.md

@@ -0,0 +1,10 @@
+<!-- status autogenerated section -->
+| Status        |           |
+| ------------- |-----------|
+| Stability     | [development]: metrics   |
+| Distributions | [] |
+| Issues        | [![Open issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector-contrib?query=is%3Aissue%20is%3Aopen%20label%3Aprocessor%2Fmetricstarttime%20&label=open&color=orange&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aopen+is%3Aissue+label%3Aprocessor%2Fmetricstarttime) [![Closed issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector-contrib?query=is%3Aissue%20is%3Aclosed%20label%3Aprocessor%2Fmetricstarttime%20&label=closed&color=blue&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aclosed+is%3Aissue+label%3Aprocessor%2Fmetricstarttime) |
+| [Code Owners](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/CONTRIBUTING.md#becoming-a-code-owner)    | [@dashpole](https://www.github.com/dashpole) |
+
+[development]: https://github.com/open-telemetry/opentelemetry-collector#development
+<!-- end autogenerated section -->

processor/metricstarttimeprocessor/config.go

@@ -0,0 +1,18 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package metricstarttimeprocessor // import "github.com/open-telemetry/opentelemetry-collector-contrib/processor/metricstarttimeprocessor"
+
+import (
+	"go.opentelemetry.io/collector/component"
+)
+
+// Config holds configuration of the metric start time processor.
+type Config struct{}
+
+var _ component.Config = (*Config)(nil)
+
+// Validate checks the configuration is valid
+func (cfg *Config) Validate() error {
+	return nil
+}

processor/metricstarttimeprocessor/doc.go

@@ -0,0 +1,7 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+//go:generate mdatagen metadata.yaml
+
+// Package metricstarttimeprocessor sets the start time of cumulative metric points when the start time is unknown.
+package metricstarttimeprocessor // import "github.com/open-telemetry/opentelemetry-collector-contrib/processor/metricstarttimeprocessor"

processor/metricstarttimeprocessor/factory.go

@@ -0,0 +1,37 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package metricstarttimeprocessor // import "github.com/open-telemetry/opentelemetry-collector-contrib/processor/metricstarttimeprocessor"
+
+import (
+	"context"
+
+	"go.opentelemetry.io/collector/component"
+	"go.opentelemetry.io/collector/consumer"
+	"go.opentelemetry.io/collector/processor"
+
+	"github.com/open-telemetry/opentelemetry-collector-contrib/processor/metricstarttimeprocessor/internal/metadata"
+)
+
+// NewFactory creates a new metric start time processor factory.
+func NewFactory() processor.Factory {
+	return processor.NewFactory(
+		metadata.Type,
+		createDefaultConfig,
+		processor.WithMetrics(createMetricsProcessor, metadata.MetricsStability))
+}
+
+func createDefaultConfig() component.Config {
+	return &Config{}
+}
+
+// createMetricsProcessor creates a metrics processor based on provided config.
+func createMetricsProcessor(
+	ctx context.Context,
+	set processor.Settings,
+	cfg component.Config,
+	nextConsumer consumer.Metrics,
+) (processor.Metrics, error) {
+	rCfg := cfg.(*Config)
+	return newMetricStartTimeProcessor(ctx, set, nextConsumer, rCfg)
+}

processor/metricstarttimeprocessor/go.mod

@@ -0,0 +1,55 @@
+module github.com/open-telemetry/opentelemetry-collector-contrib/processor/metricstarttimeprocessor
+
+go 1.22.0
+
+require (
+	github.com/stretchr/testify v1.10.0
+	go.opentelemetry.io/collector/component v0.118.0
+	go.opentelemetry.io/collector/component/componenttest v0.118.0
+	go.opentelemetry.io/collector/confmap v1.24.0
+	go.opentelemetry.io/collector/consumer v1.24.0
+	go.opentelemetry.io/collector/consumer/consumertest v0.118.0
+	go.opentelemetry.io/collector/pdata v1.24.0
+	go.opentelemetry.io/collector/processor v0.118.0
+	go.opentelemetry.io/collector/processor/processortest v0.118.0
+	go.uber.org/goleak v1.3.0
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/go-viper/mapstructure/v2 v2.2.1 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/knadh/koanf/maps v0.1.1 // indirect
+	github.com/knadh/koanf/providers/confmap v0.1.0 // indirect
+	github.com/knadh/koanf/v2 v2.1.2 // indirect
+	github.com/mitchellh/copystructure v1.2.0 // indirect
+	github.com/mitchellh/reflectwalk v1.0.2 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	go.opentelemetry.io/collector/component/componentstatus v0.118.0 // indirect
+	go.opentelemetry.io/collector/config/configtelemetry v0.118.0 // indirect
+	go.opentelemetry.io/collector/consumer/xconsumer v0.118.0 // indirect
+	go.opentelemetry.io/collector/pdata/pprofile v0.118.0 // indirect
+	go.opentelemetry.io/collector/pdata/testdata v0.118.0 // indirect
+	go.opentelemetry.io/collector/pipeline v0.118.0 // indirect
+	go.opentelemetry.io/collector/processor/xprocessor v0.118.0 // indirect
+	go.opentelemetry.io/otel v1.32.0 // indirect
+	go.opentelemetry.io/otel/metric v1.32.0 // indirect
+	go.opentelemetry.io/otel/sdk v1.32.0 // indirect
+	go.opentelemetry.io/otel/sdk/metric v1.32.0 // indirect
+	go.opentelemetry.io/otel/trace v1.32.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	go.uber.org/zap v1.27.0 // indirect
+	golang.org/x/net v0.33.0 // indirect
+	golang.org/x/sys v0.28.0 // indirect
+	golang.org/x/text v0.21.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20241015192408-796eee8c2d53 // indirect
+	google.golang.org/grpc v1.69.4 // indirect
+	google.golang.org/protobuf v1.36.2 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)