signalfx/splunk-otel-collector-chart splunk-otel-collector-0.155.0

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This Splunk OpenTelemetry Collector for Kubernetes release adopts the Splunk OpenTelemetry Collector v0.155.0.

🛑 Breaking changes 🛑

• agent, clusterReceiver: Change default of splunkPlatform.disableCompression from true to false, enabling gzip compression by default for HEC exporters. (#2491)

🚩 Deprecations 🚩

• chart: Deprecate installing cert-manager as a subchart with certmanager.enabled=true (#2451)
  Installing cert-manager through this chart will be removed in a future release. See the upgrade guidelines for migration details.

💡 Enhancements 💡

• agent, gateway: Enrich SecureApp logs pipeline with Kubernetes metadata, resource detection, and environment attributes so that SecureApp events carry the same resource context as other log pipelines in the agent.
  (#2480)
• chart: Enable block_on_overflow and improve no-drop logs pipeline reliability when featureGates.noDropLogsPipeline is enabled. (#2488)
  Sets block_on_overflow: true on the exporter sending queue to apply backpressure to the filelog receiver when the queue is full, preventing data loss.
  The queue_size setting now counts individual log records instead of batches when noDropLogsPipeline is enabled.
  The default value of 1000 is automatically raised to a minimum of 10000 in this mode.
  For high-throughput workloads consider setting splunkPlatform.sendingQueue.queueSize significantly higher (e.g. 100000).
• chart: Bump TargetAllocator to 0.130.0 in helm-charts/splunk-otel-collector/Chart.yaml (#2471)
• chart: Bump obi to 0.10.0 in helm-charts/splunk-otel-collector/Chart.yaml (#2434,#2496)
• gateway: Add support for deploying the gateway as a StatefulSet, which allows users to use features like persistent storage. (#2453)
  This change adds a new gateway.mode configuration option that can be set to statefulset to deploy the gateway as a StatefulSet instead of a Deployment.
  When gateway.mode is set to statefulset, users can also provide additional StatefulSet-specific configuration through the gateway.statefulsetSpec field.
  We also added support for a headless service when deploying the gateway as a StatefulSet, which can be enabled through the gateway.headlessService.enabled field.
• operator: Bump java to v2.29.0 in helm-charts/splunk-otel-collector/values.yaml (#2475)
• operator: Bump nodejs to v4.9.0 in helm-charts/splunk-otel-collector/values.yaml (#2472)
• operator: Bump operator to 0.117.0 in helm-charts/splunk-otel-collector/Chart.yaml (#2478)

🧰 Bug fixes 🧰

• agent: Fix SecureApp log routing so that only logs from SecureApp-instrumented workloads are delivered to the SecureApp pipeline. Previously all OTLP logs could be incorrectly routed to the SecureApp pipeline when secureAppEnabled was true with logs or profiling disabled.
  (#2457)