# Kubernetes Ingress Configuration for Traefik
# Ingress exposes HTTP routes from outside the cluster to services within

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  # Name of the ingress
  name: ${CONTAINER_IMAGE_NAME}
  # Namespace where ingress will be created
  namespace: ${KUBERNETES_NAMESPACE}
  
  # Annotations specific to Traefik ingress controller
  annotations:
    # Specify Traefik as the ingress controller
    kubernetes.io/ingress.class: "traefik"
    
    # Traefik router configuration
    # Entry point for HTTP traffic (not using HTTPS as per requirements)
    traefik.ingress.kubernetes.io/router.entrypoints: web
    
    # Optional: Add middleware for common headers
    # traefik.ingress.kubernetes.io/router.middlewares: default-headers@kubernetescrd
    
  labels:
    app: ${CONTAINER_IMAGE_NAME}

spec:
  # Define routing rules
  rules:
    # Host-based routing
    - host: ${KUBERNETES_INGRESS_HOST}
      http:
        paths:
          # Route all paths to the service
          - path: /
            # PathType defines how path matching is done
            # Prefix matches any path starting with /
            pathType: Prefix
            backend:
              service:
                # Name of the service to route traffic to
                name: ${CONTAINER_IMAGE_NAME}
                port:
                  # Service port to route to
                  number: 80