README.md

Overview

Druid Operator is a Kubernetes controller that manages the lifecycle of Apache Druid clusters. The operator simplifies the management of Druid clusters with its custom logic that is configurable via custom API (Kubernetes CRD).

Druid Operator Documentation

• Getting Started
• API Specifications
  • Druid API
• Supported Features
• Example Specs
• Developer Documentation
• Migration To Kubebuilder V3 in the Upcoming Version

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⚠️ You won't find any documentation about druid itself in this repository. If you need details about how to architecture your druid cluster you can consult theses documentations:

• Druid introduction
• Druid architecture
• Druid configuration reference

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German company iunera has published their druid cluster spec in github which is used in the context of a software project by the German Ministry for Digital and Transport. The spec have the following features:

• Kubernetes-native Druid
  • K8S jobs instead of Middlemanager with separated pod-templates
  • Service Discovery by Kubernetes aka. no zookeeper
  • HPA for historical nodes / extended Metrics Exporter
• Multiple Authenticator/Authorizer (Basic Auth and Azure AD Authentication with pac4j)
• Examples for authorization and authentication
• Based on druid-operator and flux-cd
• Secrets managed by SOPS and ingested as Environment Variables
• Postgres as Metadata Store (incl. Helmchart Config)
• All endpoints TLS encrypted incl. Howto

Link to the complete config file: https://github.com/iunera/druid-cluster-config