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HBase Kubernetes Operator

HBase Kubernetes Operator automates the deployment, provisioning, and orchestration of HBase running on Kubernetes based on Operator Framework pattern.

Current features:

  • Provisions a service, a config, masters, and regionservers
  • Graceful rolling upgrade when any of the config or pod specs change

Current limitations:

  • Operates only on healthy clusters, manual intervention is required in case of issues (it's the job of HBase to recover from failures)
  • Graceful scaling down of regionservers isn't supported

Installation instructions:

  1. run make install to tell k8s how to understand the Custom HBase Resource (CRD)
  2. run make deploy IMG=timoha/hbase-k8s-controller:latest to deploy the operator
  3. modify sample HBase CRD to have the desired config
  4. run kubectl apply -f config/samples/hbase_v1_hbase.yaml to tell the operator what to deploy.
  5. now you can go and focus on actual features of your product

The operator and HBase must be deployed to the same namespace, which defaults to hbase.