Modern applications, especially those running on containerized platforms like Kubernetes, demand a high level of observability to ensure performance, security, and stability. DevOps practices are crucial, but achieving true visibility into complex Kubernetes environments can be challenging. This talk introduces the concept of Observability Maturity specifically within the context of Kubernetes and OpenTelemetry. We'll explore how to leverage OpenTelemetry, a vendor-neutral observability framework, to instrument your Kubernetes applications and achieve a mature level of observability.