feat(HPA): Adds autoscaling config

[dhruv-shah-sumo]

OSC-1200

Supports behavior for autoscaling for otel logs/metrics/traces collector.

Checklist

• Changelog updated or skip changelog label added
• Documentation updated
• Integration tests added or modified for major features

[Copilot]

Pull Request Overview

This PR adds Horizontal Pod Autoscaler (HPA) behavior configuration support to the OpenTelemetry collectors in the Sumo Logic Kubernetes collection. The changes enable customizable scale-up and scale-down policies for autoscaling workloads.

Key Changes

• Added behavior field to autoscaling configuration across all collector types (logs, metrics, traces, and instrumentation)
• Introduced integration test to verify HPA configuration and functionality
• Updated Helm templates to conditionally render HPA behavior settings when specified

Reviewed Changes

Copilot reviewed 14 out of 14 changed files in this pull request and generated 7 comments.

Show a summary per file

File	Description
deploy/helm/sumologic/values.yaml	Added behavior: {} default values for autoscaling configuration in metrics collector, instrumentation, logs, metrics metadata, and traces gateway
deploy/helm/sumologic/templates/*/hpa.yaml	Updated HPA templates to conditionally render behavior configuration using toYaml
tests/integration/helm_ot_hpa_test.go	New integration test to validate HPA configuration across all collectors
tests/integration/features.go	Added GetHPAFeature function to create test feature for HPA validation
tests/integration/internal/stepfuncs/assess_funcs.go	Added WaitUntilHPAConfigured and WaitUntilHPAPresent functions to verify HPA configuration
tests/integration/values/values_helm_ot_hpa.yaml	Test values file with HPA behavior configuration for all collectors
tests/helm/testdata/goldenfile/metrics_collector_otc/*	Updated golden files to include HPA behavior in test output
deploy/helm/sumologic/README.md	Documented the new behavior configuration option for all autoscaling sections
.changelog/4026.added.txt	Added changelog entry for the feature

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[jagan2221]

@dhruv-shah-sumo IT's are fine.Hope we have also ensured in local by configuring behaviour parameter for all supported HPA configs and ensured that created HPA picks those supplied behaviour parameters.

[dhruv-shah-sumo]

@dhruv-shah-sumo IT's are fine.Hope we have also ensured in local by configuring behaviour parameter for all supported HPA configs and ensured that created HPA picks those supplied behaviour parameters.

Yes, I verified it locally. Used kubectl get hpa to validate the configured values. Also validated the pods getting scaled up and scaled down manually.

Will address the readme comments soon.