This is an Astronomer-maintained Helm chart for deploying Apache Airflow on Kubernetes with custom extensions like git-sync relay, dag-deploy server, auth/logging sidecars, and pgbouncer. It wraps the upstream Apache Airflow chart as a subchart and adds robust security hardening (Pod Security Standards restricted), ingress support, and OpenShift compatibility. The repository includes an extensive test suite that validates rendered templates against Kubernetes API schemas across multiple versions (1.31-1.35) and runs functional tests on kind clusters. The chart is well-structured with modular Helm templates, helper functions for common patterns (private CA trust, sidecar injection, service account naming), and comprehensive CI/CD pipelines. It is actively maintained and used by Astronomer to distribute Airflow via their Helm repository.