Catalog Details
CATEGORY
deploymentCREATED BY
UPDATED AT
April 07, 2025VERSION
0.0.1-
MODELS
What This Pattern Does:
This infrastructure design defines resources related to Role-Based Access Control (RBAC) for Elasticsearch in a Kubernetes environment. Here's a brief description of the components: 1.) zk (ZooKeeper StatefulSet): - A StatefulSet named zk with 3 replicas is defined to manage ZooKeeper instances. - It uses ordered pod management policy, ensuring that pods are started in order. - ZooKeeper is configured with specific settings, including ports, data directories, and resource requests. - It has affinity settings to avoid running multiple ZooKeeper instances on the same node. - The configuration includes liveness and readiness probes to ensure the health of the pods. 2.) zk-cs (ZooKeeper Service): - A Kubernetes Service named zk-cs is defined to provide access to the ZooKeeper instances. - It exposes the client port (port 2181) used to connect to ZooKeeper. 3.) zk-hs (ZooKeeper Headless Service): - Another Kubernetes Service named `zk-hs` is defined as headless (with cluster IP set to None). - It exposes ports for ZooKeeper server (port 2888) and leader election (port 3888). - This headless service is typically used for direct communication with individual ZooKeeper instances. 4.) **zk-pdb (ZooKeeper PodDisruptionBudget):** - A PodDisruptionBudget named `zk-pdb` is defined to control the maximum number of unavailable ZooKeeper pods to 1. - This ensures that at least one ZooKeeper instance remains available during disruptions.
Caveats and Consideration:
Networking should be properly configured to enable communication between pod and services. Ensure sufficient resources are available in the cluster.
Compatibility:
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