cassandra-k8s-statefulset

cassandra-k8s-statefulset.yaml

apiVersion: v1
kind: Service
metadata:
  labels:
    app: cassandra
  name: cassandra
spec:
  clusterIP: None
  ports:
    - port: 9042
  selector:
    app: cassandra

---
apiVersion: "apps/v1beta1"
kind: StatefulSet
metadata:
  name: cassandra
spec:
  serviceName: cassandra
  replicas: 5
  template:
    metadata:
      labels:
        app: cassandra
    spec:
      containers:
      - name: cassandra
        image: cassandra:3.11
        command:
          - /docker-entrypoint.sh
          - "-R"
        imagePullPolicy: Always
        ports:
        - containerPort: 7000
          name: intra-node
        - containerPort: 7001
          name: tls-intra-node
        - containerPort: 7199
          name: jmx
        - containerPort: 9042
          name: cql
        resources:
          limits:
            cpu: "500m"
            memory: 1Gi
          requests:
           cpu: "500m"
           memory: 1Gi
        lifecycle:
          preStop:
            exec:
              command: ["/bin/sh", "-c", "nodetool drain"]
        env:
          - name: MAX_HEAP_SIZE
            value: 512M
          - name: HEAP_NEWSIZE
            value: 100M
          - name: CASSANDRA_LISTEN_ADDRESS
            valueFrom:
              fieldRef:
                fieldPath: status.podIP
          - name: CASSANDRA_SEEDS
            value: cassandra-0.cassandra
          - name: CASSANDRA_CLUSTER_NAME
            value: "k8s"
          - name: CASSANDRA_DC
            value: "DC1"
          - name: CASSANDRA_RACK
            value: "Rack1"
          - name: CASSANDRA_ENDPOINT_SNITCH
            value: "GossipingPropertyFileSnitch"
        # These volume mounts are persistent. They are like inline claims,
        # but not exactly because the names need to match exactly one of
        # the stateful pod volumes.
        volumeMounts:
        - name: cassandra-data
          mountPath: /var/lib/cassandra
        - name: cassandra-logs
          mountPath: /var/log/cassandra
      volumes:
        - name: cassandra-logs
          emptyDir: {}
  # These are converted to volume claims by the controller
  # and mounted at the paths mentioned above.
  # do not use these in production until ssd GCEPersistentDisk or other ssd pd
  volumeClaimTemplates:
  - metadata:
      name: cassandra-data
      annotations:
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: 1Gi
          
---
apiVersion: batch/v1
kind: Job
metadata:
  name: kong-migration
spec:
  template:
    metadata:
      name: kong-migration
    spec:
      containers:
      - name: kong-migration
        image: kong
        env:
          - name: KONG_NGINX_DAEMON
            value: 'off'
          - name: KONG_DATABASE
            value: cassandra
          - name: KONG_CASSANDRA_CONTACT_POINTS
            value: cassandra
          - name: KONG_CASSANDRA_KEYSPACE
            value: kong
        command: [ "/bin/sh", "-c", "kong migrations up" ]
      restartPolicy: Never