# redis-statefulset.yaml

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: redis
spec:
  serviceName: redis
  replicas: 6
  selector:
    matchLabels:
      app: redis
  template:
    metadata:
      labels:
        app: redis
    spec:
      terminationGracePeriodSeconds: 30

      affinity:
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            - labelSelector:
                matchLabels:
                  app: redis
              topologyKey: kubernetes.io/hostname

      containers:
        - name: redis
          image: redis:7.2.5
          imagePullPolicy: IfNotPresent

          command:
            - redis-server
            - "--port"
            - "6379"
            - "--cluster-enabled"
            - "yes"
            - "--cluster-config-file"
            - "/data/nodes.conf"
            - "--cluster-node-timeout"
            - "5000"
            - "--appendonly"
            - "yes"
            - "--protected-mode"
            - "no"

          ports:
            - containerPort: 6379
              name: redis

          volumeMounts:
            - name: data
              mountPath: /data

          resources:
            requests:
              cpu: "500m"
              memory: "1Gi"
            limits:
              memory: "2Gi"

  volumeClaimTemplates:
    - metadata:
        name: data
      spec:
        accessModes:
          - ReadWriteOnce
        storageClassName: ceph-block
        resources:
          requests:
            storage: 10Gi