JavaSample/cassandra at master · rajarshp/JavaSample · GitHub

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apiVersion: v1
kind: Namespace
metadata:
  name: cassandra-prod
---
# 🔐 Admin credentials (Cassandra superuser)
# You can pre-create this secret with a random password (recommended) or let this YAML hold it.
apiVersion: v1
kind: Secret
metadata:
  name: cassandra-admin-secret
  namespace: cassandra-prod
type: Opaque
stringData:
  username: cassadmin
  password: "{{ random 16 }}"  # Replace dynamically or pre-generate via CLI
---
# 🧱 Cassandra Cluster (1 DC, 3 racks/nodes)
apiVersion: cassandra.datastax.com/v1beta1
kind: CassandraDatacenter
metadata:
  name: dc1
  namespace: cassandra-prod
spec:
  clusterName: cassandra-prod-cluster
  serverType: cassandra
  serverVersion: "4.1.3"
  managementApiAuth:
    insecure: false
    enabled: true
    manual: false
    secretRef:
      name: cassandra-admin-secret
  size: 3
  racks:
    - name: rack1
    - name: rack2
    - name: rack3
  storageConfig:
    cassandraDataVolumeClaimSpec:
      storageClassName: efs-sc      # 🔸 Your EFS storage class name
      accessModes: ["ReadWriteMany"]
      resources:
        requests:
          storage: 100Gi
  resources:
    requests:
      cpu: "1000m"
      memory: "4Gi"
    limits:
      cpu: "2000m"
      memory: "8Gi"
  config:
    cassandra-yaml:
      authenticator: PasswordAuthenticator
      authorizer: CassandraAuthorizer
      role_manager: CassandraRoleManager
      num_tokens: 16
      start_native_transport: true
      start_rpc: false
      # 🔒 Enable client-node and node-node encryption (optional, recommended)
      server_encryption_options:
        internode_encryption: all
        require_client_auth: true
        keystore_password: cassandra
        truststore_password: cassandra
      client_encryption_options:
        enabled: true
        optional: false
        require_client_auth: false
        keystore_password: cassandra
        truststore_password: cassandra
    jvm-options:
      initial_heap_size: "2G"
      max_heap_size: "4G"
  podTemplateSpec:
    metadata:
      labels:
        app: cassandra
    spec:
      containers:
        - name: cassandra
          ports:
            - containerPort: 9042
              name: cql
            - containerPort: 7000
              name: intra-node
            - containerPort: 7001
              name: tls-intra-node
---
# 🧭 Internal Service for intra-cluster and in-cluster access
apiVersion: v1
kind: Service
metadata:
  name: cassandra-service
  namespace: cassandra-prod
  labels:
    app: cassandra
spec:
  type: ClusterIP
  ports:
    - name: cql
      port: 9042
      targetPort: 9042
  selector:
    app: cassandra
---
# 🌐 External access (OpenShift Route)
apiVersion: route.openshift.io/v1
kind: Route
metadata:
  name: cassandra-route
  namespace: cassandra-prod
spec:
  to:
    kind: Service
    name: cassandra-service
  port:
    targetPort: cql
  tls:
    termination: passthrough