Working with Gateway API

kubectl apply -f https://github.com/kubernetes-sigs/gateway-api/releases/download/v1.2.0/standard-install.yaml
kubectl apply -f https://github.com/kubernetes-sigs/gateway-api/releases/download/v1.2.0/experimental-install.yaml

apiVersion: gateway.networking.k8s.io/v1
kind: GatewayClass
metadata: { name: external }
spec:
  controllerName: gateway.envoyproxy.io/gatewayclass-controller

apiVersion: gateway.networking.k8s.io/v1
kind: Gateway
metadata: { name: prod }
spec:
  gatewayClassName: external
  listeners:
  - { name: http,  port: 80,  protocol: HTTP }
  - name: https
    port: 443
    protocol: HTTPS
    tls:
      mode: Terminate
      certificateRefs:
      - { kind: Secret, name: prod-tls }

apiVersion: gateway.networking.k8s.io/v1
kind: HTTPRoute
metadata: { name: api }
spec:
  parentRefs:
  - { name: prod, sectionName: https }
  hostnames: ["api.example.com"]
  rules:
  - matches:
    - { path: { type: PathPrefix, value: /v1 } }
    backendRefs:
    - { name: api-v1, port: 80, weight: 90 }
    - { name: api-v2, port: 80, weight: 10 }

apiVersion: gateway.networking.k8s.io/v1alpha2
kind: TCPRoute
metadata: { name: pg }
spec:
  parentRefs: [{ name: prod, sectionName: pg }]
  rules:
  - backendRefs: [{ name: postgres, port: 5432 }]

apiVersion: gateway.networking.k8s.io/v1alpha2
kind: TLSRoute
metadata: { name: passthrough }
spec:
  parentRefs: [{ name: prod, sectionName: https-pt }]
  hostnames: ["mqtt.example.com"]
  rules: [{ backendRefs: [{ name: mqtt, port: 8883 }] }]

matches:
- headers:
  - { name: x-canary, value: "true" }
  path: { type: PathPrefix, value: /api }
filters:
- type: RequestHeaderModifier
  requestHeaderModifier: { add: [{ name: x-forwarded-by, value: gw }] }

backendRefs:
- { name: web-stable, port: 80, weight: 90 }
- { name: web-canary, port: 80, weight: 10 }