# Gateway API

https://github.com/kubernetes-sigs/gateway-api/tree/master/examples/v1alpha2

https://github.com/kubernetes-sigs/gateway-api/tree/master/site-src/geps

gateway.networking.k8s.io/v1alpha2
- GatewayClass
- Gateway
- HTTPRoute

## Apache APISIX
https://apisix.apache.org/docs/ingress-controller/aeps/gateway-api/

https://apisix.apache.org/plugins

## Contour
https://projectcontour.io/guides/gateway-api/

examples:
- https://github.com/projectcontour/contour-operator/tree/main/examples/gateway

## Kong
https://docs.konghq.com/kubernetes-ingress-controller/2.2.x/guides/using-gateway-api/

with chart version 2.7 or higher:
ingressController.env.feature_gates: Gateway=true

## Traefik
https://doc.traefik.io/traefik/routing/providers/kubernetes-gateway/

+ TCPRoute, TLSRoute

---

### Kong

On WC:

kubectl kustomize "github.com/kubernetes-sigs/gateway-api/config/crd?ref=v0.4.2" \
| kubectl apply -f -

On MC

kubectl apply -f app.yaml

apiVersion: v1
data:
  values: |
    image:
      tag: "2.8.0"
    admin:
      enabled: true
    autoscaling:
      enabled: false
    env:
      admin_access_log: /dev/stdout json_log
      admin_error_log: /dev/stdout
      admin_gui_access_log: /dev/stdout
      admin_gui_error_log: /dev/stdout
      database: 'off'
      headers: 'off'
      nginx_http_log_format: json_log escape=json '{"message":{"remote_addr":"$remote_addr","remote_user":"$remote_user","host":"$http_host","request":"$request","req_method":"$request_method","req_time":"$request_time","status":"$status","size":"$body_bytes_sent","user_agent":"$http_user_agent","cookie":"$http_cookie","uri":"$uri","http_referer":"$http_referer","upstream_status":"$upstream_status","upstream_addr":"$upstream_addr","upstream_connect_time":"$upstream_connect_time","upstream_header_time":"$upstream_header_time","upstream_response_time":"$upstream_response_time","x-api-key":"$http_x_api_key","api-key":"$http_api_key","x-forwarded-for":"$http_x_forwarded_for","true-client-ip":"$http_true_client_ip","upstream_cache_status":"$upstream_cache_status"},"@timestamp":"$time_iso8601","labels":{"env":"stg"},"service":{"name":"Kong"},"level":"info"}'
      nginx_http_lua_shared_dict: kong_proxy_cache 5m
      nginx_worker_processes: '1'
      portal_api_access_log: /dev/stdout
      portal_api_error_log: /dev/stdout
      prefix: /kong_prefix/
      proxy_access_log: /dev/stdout json_log
      proxy_error_log: /dev/stdout
      real_ip_header: X-Forwarded-For
      real_ip_recursive: 'on'
    ingressController:
      admissionWebhook:
        enabled: true
      enabled: true
      env:
        kong_admin_tls_skip_verify: true
        feature_gates: "Gateway=true"
      rbac:
        create: true
      serviceAccount:
        annotations: {}
        create: true
        name: null
      watchNamespaces: []
    replicaCount: 1
    terminationGracePeriodSeconds: 30
kind: ConfigMap
metadata:
  name: kong-app-userconfig-f9o7a
  namespace: f9o7a
---
apiVersion: application.giantswarm.io/v1alpha1
kind: App
metadata:
  name: kong-app
  namespace: f9o7a
spec:
  catalog: giantswarm
  kubeConfig:
    inCluster: false
  name: kong-app
  namespace: kong-app
  userConfig:
    configMap:
      name: kong-app-userconfig-f9o7a
      namespace: f9o7a
  version: 2.7.2
---
apiVersion: application.giantswarm.io/v1alpha1
kind: App
metadata:
  name: hello-world-app
  namespace: f9o7a
spec:
  catalog: giantswarm
  kubeConfig:
    inCluster: false
  name: hello-world-app
  namespace: hello-world-app
  version: 0.3.0

On WC:

apply GatewayAPI stuff on top

apiVersion: gateway.networking.k8s.io/v1alpha2
kind: GatewayClass
metadata:
  name: kong
  namespace: hello-world-app
spec:
  controllerName: konghq.com/kic-gateway-controller
---
apiVersion: gateway.networking.k8s.io/v1alpha2
kind: Gateway
metadata:
  annotations:
    konghq.com/gateway-unmanaged: kong-app/kong-app-kong-app-proxy
  name: kong
  namespace: hello-world-app
spec:
  gatewayClassName: kong
  listeners:
  - name: proxy
    port: 80
    protocol: HTTP
  - name: proxy-ssl
    port: 443
    protocol: HTTPS
---
apiVersion: gateway.networking.k8s.io/v1alpha2
kind: HTTPRoute
metadata:
  name: echo
  namespace: hello-world-app
spec:
  parentRefs:
  - group: gateway.networking.k8s.io
    kind: Gateway
    name: kong
  hostnames:
    - "gateway.rulez"
  rules:
  - backendRefs:
    - group: ""
      kind: Service
      name: hello-world-app-service
      port: 8080
      weight: 1
    matches:
    - path:
        type: PathPrefix
        value: /

curl -H "Host: gateway.rulez" 20.82.78.77