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+# fc-redis — SignalR backplane for cross-product event bus
+#
+# Lands per Q-SO-1 resolution (2026-05-11 PM): SignalR backplane in Phase A,
+# not Phase C as originally drafted. Operator directive: "Redis can be
+# deployed just fine as it's another FlowerCore technology we'll want to
+# manage."
+#
+# Phase A scope (this file):
+#   - Single Redis 7.x Alpine pod
+#   - 1Gi Longhorn RWO PVC for AOF persistence
+#   - ClusterIP Service at `redis.fc-redis.svc.cluster.local:6379`
+#   - No AUTH (in-cluster only; not exposed externally)
+#   - No IngressRoute (backplane is server-to-server only)
+#
+# Consumers (Phase A IMPL across FC services):
+#   - FlowerCore.Signage.Web (OpsConsoleHub)
+#   - FlowerCore.Scoreboard.Web (ScoreboardHub)
+#   - FlowerCore.SignalControl.Web
+#   - FlowerCore.DMS.Web
+#   - Any other product joining the cross-product event bus
+#
+# Each consumer adds:
+#   services.AddSignalR()
+#           .AddStackExchangeRedis(
+#               "redis.fc-redis.svc.cluster.local:6379",
+#               opts => opts.Configuration.ChannelPrefix =
+#                   StackExchange.Redis.RedisChannel.Literal("fc-opsconsole"));
+#
+# Phase B / C follow-ons (out of scope here):
+#   - Redis Sentinel for HA (3-node)
+#   - AUTH password from 1Password Connect (rotate via /rotate-password)
+#   - redis_exporter sidecar for Prometheus scrape
+#   - Network policies restricting which namespaces can dial 6379
+#
+# Design: docs/signage/operations-console-phase-2-design.md §3.5
+# Decision: Q-SO-1 (RESOLVED 2026-05-11 PM)
+# Memory: feedback_blooming_ui_pattern_no_iframes
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: fc-redis
+  labels:
+    app.kubernetes.io/part-of: flowercore
+    app.kubernetes.io/managed-by: argocd
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: fc-redis-data
+  namespace: fc-redis
+spec:
+  accessModes:
+    - ReadWriteOnce
+  storageClassName: longhorn
+  resources:
+    requests:
+      storage: 1Gi
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: fc-redis-config
+  namespace: fc-redis
+data:
+  redis.conf: |
+    # Phase A — minimal config; no AUTH, no replication.
+    bind 0.0.0.0
+    protected-mode no
+    port 6379
+    tcp-backlog 511
+    timeout 0
+    tcp-keepalive 300
+
+    # Persistence: AOF (fsync every second is the standard SignalR-backplane
+    # durability sweet spot — the backplane only needs to survive Redis
+    # restarts, not absolute zero loss).
+    appendonly yes
+    appendfsync everysec
+    auto-aof-rewrite-percentage 100
+    auto-aof-rewrite-min-size 64mb
+
+    # Reasonable defaults — let Redis pick most things.
+    maxmemory-policy allkeys-lru
+    maxmemory 256mb
+
+    # Logging
+    loglevel notice
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: fc-redis
+  namespace: fc-redis
+  labels:
+    app: fc-redis
+spec:
+  replicas: 1
+  strategy:
+    type: Recreate           # RWO PVC; do not do rolling update
+  selector:
+    matchLabels:
+      app: fc-redis
+  template:
+    metadata:
+      labels:
+        app: fc-redis
+    spec:
+      securityContext:
+        runAsNonRoot: true
+        runAsUser: 999       # redis:7-alpine default uid
+        runAsGroup: 999
+        fsGroup: 999
+      containers:
+        - name: redis
+          image: redis:7-alpine
+          imagePullPolicy: IfNotPresent
+          command: ["redis-server", "/etc/redis/redis.conf"]
+          ports:
+            - name: redis
+              containerPort: 6379
+          resources:
+            requests:
+              cpu: "50m"
+              memory: "128Mi"
+            limits:
+              cpu: "500m"
+              memory: "384Mi"
+          volumeMounts:
+            - name: data
+              mountPath: /data
+            - name: config
+              mountPath: /etc/redis
+              readOnly: true
+          livenessProbe:
+            tcpSocket:
+              port: 6379
+            initialDelaySeconds: 5
+            periodSeconds: 10
+          readinessProbe:
+            exec:
+              command: ["redis-cli", "ping"]
+            initialDelaySeconds: 2
+            periodSeconds: 5
+          securityContext:
+            allowPrivilegeEscalation: false
+            readOnlyRootFilesystem: true
+            capabilities:
+              drop: [ALL]
+      volumes:
+        - name: data
+          persistentVolumeClaim:
+            claimName: fc-redis-data
+        - name: config
+          configMap:
+            name: fc-redis-config
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: redis
+  namespace: fc-redis
+spec:
+  type: ClusterIP
+  selector:
+    app: fc-redis
+  ports:
+    - name: redis
+      port: 6379
+      targetPort: 6379
+      protocol: TCP