Knative net-gateway-api

This component is Beta

net-gateway-api repository contains a KIngress implementation and testing for Knative integration with the Kubernetes Gateway API.

Note: the integration is beta because some features are still missing. You can find the tested Ingress and unavailable features here.

• http-option - disabling HTTP
• external-tls provisioning using HTTP-01 challenges is limited to 64 certs by the Gateway API

KIngress Conformance Tests

We run our Knative Ingress Conformance tests and are tracking support by different implementations here:

• Contour Epic · Issue #384
• Istio EPIC · Issue #383

Versions to be installed are listed in hack/test-env.sh.

Requirements

1. A Kind cluster
2. Knative serving installed
3. ko (for installing the net-gateway-api)
4. kubectl
5. export KO_DOCKER_REPO=kind.local

Getting started

Install Knative serving

kubectl apply -f https://github.com/knative/serving/releases/latest/download/serving-crds.yaml
kubectl apply -f https://github.com/knative/serving/releases/latest/download/serving-core.yaml

Configure Knative

Ingress

Configuration so Knative serving uses the proper "ingress.class":

kubectl patch configmap/config-network \
  -n knative-serving \
  --type merge \
  -p '{"data":{"ingress.class":"gateway-api.ingress.networking.knative.dev"}}'

(OPTIONAL) Deploy a sample hello world app:

cat <<-EOF | kubectl apply -f -
apiVersion: serving.knative.dev/v1
kind: Service
metadata:
  name: helloworld-go
spec:
  template:
    spec:
      containers:
      - image: gcr.io/knative-samples/helloworld-go
        env:
        - name: TARGET
          value: Go Sample v1
EOF

Install net-gateway-api

ko apply -f config/

Load tested environment versions

source ./hack/test-env.sh

Install a supported implementation

Istio

# gateway-api CRD must be installed before Istio.
echo ">> Installing Gateway API CRDs"
kubectl apply -f third_party/gateway-api/gateway-api.yaml

echo ">> Bringing up Istio"
curl -sL https://istio.io/downloadIstioctl | sh -
"$HOME"/.istioctl/bin/istioctl install -y --set values.global.proxy.clusterDomain="${CLUSTER_SUFFIX}"

echo ">> Deploy Gateway API resources"
kubectl apply -f ./third_party/istio

Contour

echo ">> Bringing up Contour"
kubectl apply -f "https://raw.githubusercontent.com/projectcontour/contour/${CONTOUR_VERSION}/examples/render/contour-gateway-provisioner.yaml"

# wait for operator deployment to be Available
kubectl wait deploy --for=condition=Available --timeout=60s -n "projectcontour" contour-gateway-provisioner

echo ">> Deploy Gateway API resources"
kubectl apply -f ./third_party/contour

(OPTIONAL) For testing purpose (Istio)

Use Kind with MetalLB - https://kind.sigs.k8s.io/docs/user/loadbalancer

For Mac setup a SOCK5 Proxy in the Docker KinD network and use the ALL_PROXY environment variable

docker run --name kind-proxy -d --network kind -p 1080:1080 serjs/go-socks5-proxy
export ALL_PROXY=socks5://localhost:1080
curl 172.18.255.200 -v -H 'Host: helloworld-test-image.default.example.com'

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To learn more about Knative, please visit our Knative docs repository.

If you are interested in contributing, see CONTRIBUTING.md and DEVELOPMENT.md.