Page Comparison

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1. Scale Down Nginx-Ingress Controller

   • Scale down the nginx-ingress controller to zero replicas.

     Code Block
     language bashnone
     kubectl scale deployment nginx-ingress-controller --replicas=0 -n <namespace>

2. Monitor Kafka Lags

   • Monitor Kafka consumer lags until they reach zero to ensure no pending messages.

     Code Block
     language bash
     kafka-consumer-groups --bootstrap-server <kafka-broker> --describe --group <consumer-group>

     If latest monitoring is available, use Kafka-UI to monitor Kafka consumer lags.

     Code Block
     language bashnone
     kubectl port-forward svc/kafka-ui 8080:8080 -n <namespace> # visit http://localhost:8080/kafka-ui to access dashboard

3. Scale Down Cluster Worker Nodes

   • Scale down the worker nodes from AWS Auto Scaling Groups, to prevent any further activities.

4. Backup EBS Volumes

   • Take snapshots of the EBS volumes attached to Persistent Volumes (PVs).

     • Kafka

     • Kafka - Infra (if available)

     • Zookeeper (if available)

     • Elasticsearch (data & master)

     • Elasticsearch - Infra (data & master) (if available)

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