EKS managed node group k8ssandra

eksctl.yaml

apiVersion: eksctl.io/v1alpha5
kind: ClusterConfig
metadata:
  name: arian-playground-staging
  region: eu-central-1
  version: "1.19"
managedNodeGroups:
  # Used for other workloads
  - name: compute
    minSize: 1
    desiredCapacity: 3
    maxSize: 10
  # Used for K8ssandra on EBS
  - name: memory
    desiredCapacity: 3
    minSize: 3
    maxSize: 6
    privateNetworking: true
    instanceType: r5.2xlarge # https://aws.amazon.com/ec2/instance-types/r5/
    taints:
      - key: wire.com/role
        value: cassandra

values.yaml

cassandra:
  version: "3.11.10"
  cassandraLibDirVolume:
    storageClass: gp2
    size: 3Ti
      heap:
  heap:
    size: 31G
    newGenSize: 31G
  resources:
    requests:
      cpu: 7000m
      memory: 58Gi
    limits:
      cpu: 7000m
      memory: 58Gi
  # Because cassandra nodes use quite a lof of resources, we help it find a
  # place to schedule by making sure that the instances don't have any
  # other things running
  tolerations:
    - key: wire.com/role
      value: cassandra
  datacenters:
    - name: dc1
      size: 3
      racks:
        - name: eu-central-1a
          affinityLabels:
            topology.kubernetes.io/zone: eu-central-1a
        - name: eu-central-1b
          affinityLabels:
            topology.kubernetes.io/zone: eu-central-1b
        - name: eu-central-1c
          affinityLabels:
            topology.kubernetes.io/zone: eu-central-1c

reaper:
  autoschedule: true