Gateway API Demo

Prerequisites

Install cert-manager helm chart (optional)
Install external dns helm chart (optional)
Kubernetes or Cloud provider Load Balancer Service
Clone this repo

git clone https://github.com/syseleven/gateway-api-demo.git

Install Gateway API CRDs

kubectl apply -f https://github.com/kubernetes-sigs/gateway-api/releases/download/v1.1.0/experimental-install.yaml

Install the cilium helm chart. This is the minimum configuration. You can also use the cilium values file in this repo (optional)

helm upgrade cilium cilium/cilium \
    --namespace kube-system \
    --reuse-values \
    --set kubeProxyReplacement=true \
    --set gatewayAPI.enabled=true

Install the Cert-Manager helm chart (optional). Make sure to create an issuer or a clusterissuer after the installation. Cert-Manager Docs

helm upgrade --install cert-manager --namespace cert-manager --create-namespace -f cert-manager-helm/cert-manager-values.yaml jetstack/cert-manager

Install the External DNS helm chart (optional). Make sure to configure your DNS API key in the external-dns-values.yaml first. External-DNS Docs

helm upgrade --install external-dns --namespace external-dns  --create-namespace -f external-dns/external-dns-values.yaml bitnami/external-dns

Install the Gateway API controller. Remove the HTTPS section if you are only using HTTP routes. Change the domain, certificate and clusterissuer if you are using HTTPS. You will need a Load Balancer Service for this to succeed

kubectl create -f gateway-api/gateway.yaml

Wait for the Load Balancer IP to be ready
Create the demo web app v1

kubectl create -f webapp/webapp-v1.deploy.yaml

Create an HTTP route. Change the domain name first.

kubectl create -f gateway-api/http-route.yaml

Test if the route is working. If you are using external dns wait a few minutes for the domain name to get added to the dns server

curl http://example.com

Update the HTTP route with a redirect and a HTTPS route

kubectl apply -f gateway-api/https-redirect.yaml

Add the second demo web app v2

kubectl create -f webapp/webapp-v2.deploy.yaml

Add a second service and traffic spliting to the existing routes

kubectl apply -f gateway-api/https-redirect-split.yaml

Test both web apps and ensure that the traffic spliting is working (green / red app)

open http://example.com

syseleven / gateway-api-demo

Gateway API Demo

Prerequisites

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