apiVersion: v1
kind: Service
metadata:
  name: dlob-redis
  annotations:
    argocd.argoproj.io/sync-wave: "3"
spec:
  selector:
    app.kubernetes.io/name: dlob-redis
  ports:
    - name: redis
      port: 6379
      targetPort: redis
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: dlob-redis
  annotations:
    argocd.argoproj.io/sync-wave: "3"
spec:
  replicas: 1
  selector:
    matchLabels:
      app.kubernetes.io/name: dlob-redis
  template:
    metadata:
      labels:
        app.kubernetes.io/name: dlob-redis
    spec:
      containers:
        - name: redis
          image: redis:7-alpine
          imagePullPolicy: IfNotPresent
          env:
            - name: POD_IP
              valueFrom:
                fieldRef:
                  fieldPath: status.podIP
          ports:
            - name: redis
              containerPort: 6379
          # DLOB redis client uses ioredis Cluster when RUNNING_LOCAL=true and LOCAL_CACHE=true.
          # We run a single-node Redis Cluster (no TLS) and assign all slots on startup.
          command: ["/bin/sh", "-lc"]
          args:
            - |
              exec redis-server \
                --save "" \
                --appendonly no \
                --protected-mode no \
                --bind 0.0.0.0 \
                --cluster-enabled yes \
                --cluster-config-file /data/nodes.conf \
                --cluster-node-timeout 5000 \
                --cluster-require-full-coverage no \
                --cluster-announce-ip "${POD_IP}" \
                --cluster-announce-port 6379 \
                --cluster-announce-bus-port 16379
          lifecycle:
            postStart:
              exec:
                command:
                  - /bin/sh
                  - -lc
                  - |
                    set -e
                    for i in $(seq 1 60); do
                      redis-cli -h 127.0.0.1 -p 6379 ping >/dev/null 2>&1 && break
                      sleep 1
                    done

                    # If cluster is already initialized, do nothing.
                    if redis-cli -h 127.0.0.1 -p 6379 cluster info 2>/dev/null | grep -q 'cluster_slots_assigned:16384'; then
                      exit 0
                    fi

                    # Redis 7+ supports CLUSTER ADDSLOTSRANGE.
                    redis-cli -h 127.0.0.1 -p 6379 cluster addslotsrange 0 16383 || true