Simple Example how to run IoTDB as Cluster on Kubernetes
You need a Kubernetes cluster (e.g. Minikube, see here for details: https://minikube.sigs.k8s.io/docs/).
First, create a namespace
kubectl create namespace iotdb2
Then, install all ressources in the cluster
kubectl -n iotdb2 -f configmap.yaml
kubectl -n iotdb2 -f service.yaml
kubectl -n iotdb2 -f headless-service.yaml
kubectl -n iotdb2 -f statefulset.yaml
This should trigger the creation of 2 pods named cluster2-seeds-0 and cluster2-seeds-1 which form a two node cluster.
Forward a Port to one of the pods to your local system via
kubectl port-forward -n iotdb2 pods/cluster2-seeds-0 6667:6667
and use the cli to connect to the cluster with default settings (localhost and port 6667).
This is not starting iotdb 0.12.2 directly but a slightly patched version from the branch https://github.com/apache/iotdb/tree/experimental/0.12.2-cluster-for-k8s which is based on the release 0.12.2 branch.
Changes
Patches for rel/0.12 to make it run on k8s.
* No IP resolution at startup
* if the string "hostname" is set as "internal_ip" in iotdb-cluster.properties it will resolve the hostname at startup (FQDN) and set as internal_ip parameter