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Redis on Kubernetes

Redis as a StatefulSet with a password, append-only persistence on a volume, and health checks.

Customize names, versions and passwords →

apiVersion: v1
kind: Secret
metadata:
  name: redis
  namespace: default
type: Opaque
stringData:
  REDIS_PASSWORD: "change-me"
---
apiVersion: v1
kind: Service
metadata:
  name: redis
  namespace: default
spec:
  clusterIP: None
  selector:
    app: redis
  ports:
    - name: redis
      port: 6379
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: redis
  namespace: default
spec:
  serviceName: redis
  replicas: 1
  selector:
    matchLabels:
      app: redis
  template:
    metadata:
      labels:
        app: redis
    spec:
      securityContext:
        fsGroup: 999
      containers:
        - name: redis
          image: redis:7.4
          args: ["redis-server", "--appendonly", "yes", "--requirepass", "$(REDIS_PASSWORD)"]
          ports:
            - name: redis
              containerPort: 6379
          envFrom:
            - secretRef:
                name: redis
          readinessProbe:
            exec:
              command: ["sh", "-c", "redis-cli --no-auth-warning -a \"$REDIS_PASSWORD\" ping | grep PONG"]
            periodSeconds: 10
          livenessProbe:
            tcpSocket:
              port: redis
            initialDelaySeconds: 15
            periodSeconds: 20
          resources:
            requests:
              cpu: 100m
              memory: 128Mi
            limits:
              memory: 512Mi
          volumeMounts:
            - name: data
              mountPath: /data
  volumeClaimTemplates:
    - metadata:
        name: data
      spec:
        accessModes: ["ReadWriteOnce"]
        resources:
          requests:
            storage: 5Gi

Passwords here are placeholders (change-me). The generator creates random ones for you.

How to use it

kubectl apply -f redis.yaml
kubectl -n default get pods -w

• Apps connect to redis://:<password>@redis.default.svc.cluster.local:6379.

Prefer Docker Compose? See the Redis Docker Compose version.