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This is the official druid-operator project, now maintained by Maintainers.md. druid-operator is depreacted. Ref to issue and PR. Feel free to open issues and PRs! Collaborators are welcome !

Kubernetes Operator for Apache Druid

• druid-operator provisions and manages Apache Druid cluster on kubernetes.
• druid-operator is designed to provision and manage Apache Druid in distributed mode only.
• It is built using the kubebuilder.
• Language used is GoLang.
• druid-operator is available on operatorhub.io
• Refer to Documentation for getting started.
• Join Kubernetes slack and join druid-operator

Talks and Blogs on Druid Operator

• Dok Community
• Druid Summit
• Druid Operator Blog
• Druid On K8s Without ZK

Supported CR

• The operator supports CR of type Druid.
• Druid CR belongs to api Group druid.apache.org and version v1alpha1

Druid Operator Architecture

Notifications

• The project moved to Kubebuilder v3 which requires a manual change in the operator.
• Users may experience HPA issues with druid-operator with release 0.0.5, as described in the issue.
• The latest release 0.0.6 has fixes for the above issue.
• The operator has moved from HPA apiVersion autoscaling/v2beta1 to autoscaling/v2 API users will need to update there HPA Specs according v2beta2 api in order to work with the latest druid-operator release.
• Users may experience pvc deletion issue in release 0.0.6, this issue has been fixed in patch release 0.0.6.1.
• druid-operator has moved Ingress apiVersion networking/v1beta1 to networking/v1. Users will need to update there Ingress Spec in the druid CR according networking/v1 syntax. In case users are using schema validated CRD, the CRD will also be needed to be updated.
• druid-operator has moved PodDisruptionBudget apiVersion policy/v1beta1 to policy/v1. Users will need to update there Kubernetes versions to 1.21+ to use druid-operator tag 0.0.9+.
• The latest release for druid-operator is v1.0.0, this release is compatible with k8s version 1.25. HPA API is kept to version v2beta2.

Kubernetes version compatibility

druid-operator	0.0.9	v1.0.0
kubernetes <= 1.20	❌	❌
kubernetes == 1.21	✅	❌
kubernetes >= 1.22 and < 1.25	✅	✅
kubernetes > 1.25	❌	✅

Contributors

Note

Apache®, Apache Druid, Druid® are either registered trademarks or trademarks of the Apache Software Foundation in the United States and/or other countries. This project, druid-operator, is not an Apache Software Foundation project.