# kubernetes-deployment-service.yaml

# ---- Deployment ----
# This object defines how to run and manage your application pods.
apiVersion: apps/v1
kind: Deployment
metadata:
  name: frontendadmin # Name of the Deployment
  labels:
    app: react-app          # Label to identify resources related to this app
spec:
  replicas: 1 # Number of desired pods (you can adjust this)
  selector:
    matchLabels:
      app: frontendadmin # This must match the labels in the Pod template
  template: # Defines the Pod that will be created
    metadata:
      labels:
        app: frontendadmin # Labels applied to each Pod
    spec:
      containers:
        - name: frontendadmin # Name of the container within the Pod
          image: frontendadmin:latest # <<< IMPORTANT: Replace with your actual image name and tag
                                          # Ensure this image is accessible by your Kubernetes cluster.
          imagePullPolicy: Always # Or "IfNotPresent" if you prefer, especially for "latest" tags
          ports:
            - containerPort: 80 # The port your Nginx server is listening on inside the container
          resources:
            requests:
              cpu: "100m"
              memory: "128Mi"
            limits:
              cpu: "200m"
              memory: "256Mi"

---

# ---- Service ----
# This object defines how to access your application.
apiVersion: v1
kind: Service
metadata:
  name: frontendadmin-service # Name of the Service
  labels:
    app: frontendadmin       # Label to identify resources related to this app
spec:
  type: LoadBalancer # Exposes the Service externally using a cloud provider's load balancer.
                     # Alternatives:
                     # - NodePort: Exposes the Service on each Node's IP at a static port.
                     # - ClusterIP: Exposes the Service on a cluster-internal IP (default).
                     # - Ingress: For more advanced HTTP/HTTPS routing (requires an Ingress controller).
  selector:
    app: frontendadmin # This must match the labels of the Pods you want to target (from the Deployment)
  ports:
    - protocol: TCP
      port: 3001         # The port the Service will be available on (externally or within the cluster)
      targetPort: 80   # The port on the Pods (containerPort) that the Service will forward traffic to