basicstack.org/k8s/30-ingress.yaml

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: basicstack-web
  namespace: basicstack-web
  annotations:
    traefik.ingress.kubernetes.io/router.entrypoints: websecure
    traefik.ingress.kubernetes.io/router.tls: "true"
    cert-manager.io/cluster-issuer: letsencrypt-prod
    traefik.ingress.kubernetes.io/router.middlewares: basicstack-web-redirect@kubernetescrd
spec:
  ingressClassName: traefik
  tls:
    - hosts:
        - basicstack.org
        - www.basicstack.org
      secretName: basicstack-org-tls
  rules:
    - host: basicstack.org
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: basicstack-web
                port:
                  number: 80
    - host: www.basicstack.org
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: basicstack-web
                port:
                  number: 80
---
# Redirect www to non-www
apiVersion: traefik.io/v1alpha1
kind: Middleware
metadata:
  name: redirect
  namespace: basicstack-web
spec:
  redirectRegex:
    regex: "^https://www\\.basicstack\\.org/(.*)"
    replacement: "https://basicstack.org/${1}"
    permanent: true