---
# Single shared HA Valkey for the arr apps (sonarr/radarr/prowlarr), managed by
# valkey-operator. It activates the fork's #14 Redis features: the SignalR
# backplane, the cross-replica cache-invalidation bus, and the distributed rate
# limiter. One cluster is safe for all three because each fork namespaces its
# keys and pub/sub channels by a per-app prefix (sonarr:ratelimit: /
# radarr:ratelimit: / prowlarr:ratelimit:), so their state never collides.
#
# Modeled on jellyfin-valkey: shards:1 + replicas:2 is one primary with two
# replicas in a single shard group (three ValkeyNodes total); losing the primary
# triggers an automatic failover so a node/pod loss no longer drops the shared
# state the app replicas coordinate through. The operator runs Valkey
# cluster-mode-enabled with protected-mode off and leaves the built-in `default`
# user passwordless, so clients connect with no auth/TLS; StackExchange.Redis
# seeds off the single service and auto-discovers topology plus failovers.
# scheduling.node.spread.shard:Required keeps the three nodes on distinct hosts,
# so one host loss removes at most one node; podDisruptionBudget.mode:Cluster
# lets the operator manage a quorum-aware PDB. Persistence is omitted (/data is an
# emptyDir): the coordination state is ephemeral (short TTLs / transient pub/sub),
# replication+failover already provide redundancy, and an operator-managed PVC
# cannot carry the k8up.io/backup:"false" annotation the namespace k8up Schedule
# needs to skip in-use RWO volumes.
apiVersion: valkey.io/v1alpha1
kind: ValkeyCluster
metadata:
  name: arrstack-valkey
  namespace: arrstack
spec:
  shards: 1
  replicas: 2
  image: docker.io/valkey/valkey:9.0.0
  exporter:
    enabled: false
  scheduling:
    node:
      spread:
        shard:
          mode: Required
  podDisruptionBudget:
    mode: Cluster
  resources:
    requests:
      cpu: 50m
      memory: 128Mi
    limits:
      cpu: 500m
      memory: 512Mi
