Use library injection to auto-instrument and trace your Kubernetes applications with Datadog APM

The text discusses the challenges of manually configuring tracing in Kubernetes applications and introduces a new feature that automates instrumentation, enabling developers to configure tracing without changing or rebuilding their application image. The Datadog Admission Controller allows for library injection, which injects Java, Node.js, and Python tracing libraries directly into pods at runtime via annotations in the YAML file. This method avoids the need to rebuild or redeploy the application image, reducing operational overhead and enabling faster time-to-value for APM. The feature also enables unified service tagging, which automatically cross-references traces, logs, and metrics through common reserved tags, simplifying troubleshooting and aggregation of services.