# ==============================================================================
# EXAMPLE: Basic Kubernetes Ingress
# ==============================================================================
#
# WHAT THIS DEMONSTRATES:
# - Basic ingress configuration with EasyHAProxy
# - Multiple domains pointing to the same service
# - Complete deployment + service + ingress setup
# - HTTP ingress without TLS
#
# REQUIREMENTS (run these first):
# ```bash
# # 1. Ensure EasyHAProxy is installed in your cluster
# kubectl create namespace easyhaproxy
# kubectl apply -f https://raw.githubusercontent.com/byjg/docker-easy-haproxy/5.0.0/deploy/kubernetes/easyhaproxy-daemonset.yml
#
# # 2. Label the node where EasyHAProxy will run
# kubectl label nodes <node-name> "easyhaproxy/node=master"
#
# # 3. Add to /etc/hosts for local testing (idempotent)
# grep -q "example.org" /etc/hosts || echo "<node-ip> example.org www.example.org" | sudo tee -a /etc/hosts
# ```
#
# HOW TO START:
# ```bash
# kubectl apply -f service.yml
# ```
#
# HOW TO VERIFY IT'S WORKING:
# ```bash
# # Check resources are created
# kubectl get deployment,service,ingress container-example
#
# # Test via node IP
# curl -H "Host: example.org" http://<node-ip>:31080
# # Expected: 200 OK with "My Host Example"
#
# # Or use port-forward for testing
# kubectl port-forward -n easyhaproxy deployment/easyhaproxy 8080:80
# curl -H "Host: example.org" http://localhost:8080
# # Expected: 200 OK with "My Host Example"
#
# # Test second domain
# curl -H "Host: www.example.org" http://<node-ip>:31080
# # Expected: Same response
# ```
#
# CLEAN UP:
# ```bash
# kubectl delete -f service.yml
# ```
#
# ==============================================================================

---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: container-example
  namespace: default
spec:
  # Use ingressClassName instead of the deprecated annotation
  # For backward compatibility, annotation kubernetes.io/ingress.class is still supported
  ingressClassName: easyhaproxy
  rules:
  - host: example.org
    http:
      paths:
      - backend:
          service:
            name: container-example
            port:
              number: 8080
        pathType: ImplementationSpecific
  - host: www.example.org
    http:
      paths:
      - backend:
          service:
            name: container-example
            port:
              number: 8080
        pathType: ImplementationSpecific

---
apiVersion: v1
kind: Service
metadata:
  name: container-example
  namespace: default
spec:
  ports:
  - name: http
    port: 8080
  selector:
    app: container-example
  type: ClusterIP

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: container-example
  namespace: default
spec:
  replicas: 1
  revisionHistoryLimit: 10
  strategy:
    rollingUpdate:
      maxSurge: 1
      maxUnavailable: 0
    type: RollingUpdate
  selector:
    matchLabels:
      app: container-example
  template:
    metadata:
      labels:
        app: container-example
    spec:
      containers:
        - name: container-example
          image: byjg/static-httpserver
          ports:
            - containerPort: 8080
          resources:
            limits:
              cpu: '0.05'
              memory: '20Mi'
            requests:
              cpu: '0.05'
              memory: '20Mi'
          env:
            - name: TITLE
              value: "My Host Example"