OpenTelemetry’s mission is to enable effective observability with high-quality, portable, and ubiquitous telemetry. The Elastic Stack's native OTEL support now aligns directly with that goal, making it easier and more economical to adopt OTel without vendor-specific agents or SDKs.

This talk reviews how Observability data signals are generated in software systems, the benefits and shortcomings of OpenTelemetry 3rd party integrations, and advancements in grassroots first-party OpenTelemetry instrumentation. We’ll end with a short demo showing how to enable effective observability with OpenTelemetry and the ElasticStack.

For years, Elasticsearch was known as a powerful engine for traditional text ingestion, processing, and search - for example, logs. In this talk, we’ll cover the capabilities introduced since then that make Elasticsearch (and the rest of the Elastic Stack) a strong choice for going beyond log analysis and classic BM25 search. Topics include dense vectors, sparse vectors, and hybrid search, along with features that improve effectiveness in modern retrieval scenarios.

In this talk, we'll explore how Terraform can be used to automate and manage Elastic Cloud and self-managed Elastic Stack deployments with infrastructure-as-code (IaC). Whether you're running Elasticsearch clusters in the cloud or on-premises, Terraform provides a consistent, version-controlled, and repeatable way to deploy, scale, and manage your Elastic infrastructure. We'll cover: ✅ Key Terraform providers for Elastic (Elastic Cloud & Elastic Stack) ✅ Automating multi-cloud Elastic deployments (AWS, Azure) ✅ Cross-Cluster Search (CCS) & Cross-Cluster Replication (CCR) via Terraform ✅ Managing Elasticsearch configurations, index templates, and pipelines ✅ Best practices for CI/CD integration & team collaboration ✅ Real-world use cases & lessons learned.