Install Kong Operator for Kong Event Gateway

Create the namespaces used throughout this example:

kubectl create namespace kong
kubectl create namespace kafka

Install Kong Operator with Helm:

1. Add the Kong Helm charts:

   helm repo add kong https://charts.konghq.com
   helm repo update

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2. Install Kong Operator using Helm:

   helm upgrade --install kong-operator kong/kong-operator -n kong-system \
     --create-namespace \
     --set image.tag=2.2 \
     --set env.ENABLE_CONTROLLER_KONNECT=true \
     --set env.ENABLE_CONTROLLER_KEGDATAPLANE=true

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   If you want cert-manager to issue and rotate the admission and conversion webhook certificates, install cert-manager to your cluster and enable cert-manager integration by passing the following argument while installing, in the next step:

   --set global.webhooks.options.certManager.enabled=true

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   If you do not enable this, the chart will generate and inject self-signed certificates automatically. We recommend enabling cert-manager to manage the lifecycle of these certificates. Kong Operator needs a certificate authority to sign the certificate for mTLS communication between the control plane and the data plane. This is handled automatically by the Helm chart. If you need to provide a custom CA certificate, refer to the certificateAuthority section in the values.yaml of the Helm chart to learn how to create and reference your own CA certificate.

The Event Gateway examples in this guide use a three-broker Kafka cluster deployed with the Bitnami chart.

1. Add the Bitnami Helm repository:

   helm repo add bitnami https://charts.bitnami.com/bitnami
   helm repo update

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2. Write the Kafka configuration file:

   cat <<'EOF' >/tmp/kafka-values.yaml
   image:
     registry: docker.io
     repository: bitnamilegacy/kafka
     tag: 4.0.0-debian-12-r6
   
   listeners:
     client:
       protocol: PLAINTEXT
   externalAccess:
     enabled: false
   kraft:
     enabled: true
   controller:
     replicaCount: 3
   broker:
     replicaCount: 0
   EOF

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3. Install Kafka:

   helm install kafka-cluster bitnami/kafka \
     -n kafka \
     --version 32.4.3 \
     -f /tmp/kafka-values.yaml

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4. Wait for all Kafka brokers to be ready before continuing:

   kubectl wait pod -n kafka \
     --for=condition=Ready \
     --selector app.kubernetes.io/name=kafka \
     --timeout=5m

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