feat: full Kubernetes deployment with monitoring stack

K8s manifest fixes:
- Fixed image to rishabhverma17/hypercache:latest (was wrong name)
- Dynamic seed: only seed with node-0, gossip propagates the rest
- Simplified init container to wait for seed node only
- Updated config to match new defaults (TTL=0, multi-store, max_stores=16)

New K8s monitoring stack (k8s/monitoring.yaml):
- Elasticsearch StatefulSet + Service
- Filebeat DaemonSet with RBAC (auto-ships logs from all pods)
- Grafana Deployment with pre-configured datasources

New K8s dashboards (k8s/grafana-dashboards.yaml):
- Same 3 Grafana dashboards as Docker (Health, Performance, System)
- Loaded via ConfigMap — no manual setup needed

Makefile targets:
- make k8s-up/down/scale/status/logs/dashboard/grafana

Usage: kubectl apply -f k8s/ (deploys everything)
Scale: make k8s-scale NODES=5 or use Minikube Dashboard UI

Author: rishabhverma17

Makefile

@@ -116,6 +116,39 @@ docker-down:
 docker-logs:
 	docker compose -f docker-compose.cluster.yml logs -f --tail=50
 
+## k8s-up: Deploy to Kubernetes (Minikube)
+k8s-up:
+	kubectl apply -f k8s/
+	@echo "Waiting for pods..."
+	@kubectl wait --for=condition=ready pod -l app=hypercache -n hypercache --timeout=120s 2>/dev/null || true
+	@echo "Cluster status:"
+	@kubectl get pods -n hypercache
+
+## k8s-down: Remove from Kubernetes
+k8s-down:
+	kubectl delete -f k8s/ --ignore-not-found
+
+## k8s-scale: Scale HyperCache replicas (usage: make k8s-scale NODES=5)
+k8s-scale:
+	kubectl scale statefulset hypercache -n hypercache --replicas=$${NODES:-3}
+	@echo "Scaled to $${NODES:-3} replicas"
+
+## k8s-status: Show K8s cluster status
+k8s-status:
+	@kubectl get pods,svc -n hypercache
+
+## k8s-logs: Tail HyperCache pod logs
+k8s-logs:
+	kubectl logs -f -l app=hypercache -n hypercache --max-log-requests=10 --tail=50
+
+## k8s-dashboard: Open Minikube dashboard
+k8s-dashboard:
+	minikube dashboard &
+
+## k8s-grafana: Open Grafana in browser (Minikube)
+k8s-grafana:
+	minikube service grafana -n hypercache
+
 ## deps: Download and verify dependencies
 deps:
 	$(GO) mod download

README.md

@@ -128,15 +128,30 @@ docker compose -f docker-compose.cluster.yml down
 
 ### Kubernetes
 ```bash
-# Deploy a 3-node cluster
-kubectl apply -f k8s/hypercache-cluster.yaml
+# Prerequisites: minikube (brew install minikube) + kubectl (brew install kubectl)
 
-# Scale to 5 nodes
-kubectl scale statefulset hypercache -n hypercache --replicas=5
+# Start Minikube
+minikube start
 
-# Check cluster
-kubectl get pods -n hypercache
-kubectl exec -n hypercache hypercache-0 -- wget -qO- http://localhost:9080/health
+# Deploy full stack (HyperCache + Elasticsearch + Filebeat + Grafana)
+make k8s-up
+# or: kubectl apply -f k8s/
+
+# Check cluster status
+make k8s-status
+
+# Scale to 5 nodes (or use Minikube Dashboard UI)
+make k8s-scale NODES=5
+
+# Open dashboards
+make k8s-dashboard    # Kubernetes Dashboard (pods, scaling, logs)
+make k8s-grafana      # Grafana (same dashboards as Docker — admin/admin123)
+
+# View logs
+make k8s-logs
+
+# Tear down
+make k8s-down
 ```
 
 ### 📊 Access Points
@@ -259,6 +274,13 @@ make fmt                Format code
 make docker-build       Build Docker image
 make docker-up          Start Docker stack
 make docker-down        Stop Docker stack
+make k8s-up             Deploy to Kubernetes (full stack)
+make k8s-down           Remove from Kubernetes
+make k8s-scale NODES=5  Scale to N replicas
+make k8s-status         Show K8s pod/service status
+make k8s-dashboard      Open Minikube dashboard
+make k8s-grafana        Open Grafana (K8s)
+make k8s-logs           Tail HyperCache pod logs
 make deps               Download and tidy dependencies
 ```