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Data Plane Client Certificate
In this guide you’ll learn how to use the KongDataPlaneClientCertificate
custom resource to manage
Konnect Vault natively from your Kubernetes cluster.
Prerequisites: Install Kong Gateway Operator and create a valid KonnectAPIAuthConfiguration and KonnectGatewayControlPlane in your cluster.
Prerequisites
Install Kong Gateway Operator
Update the Helm repository:
helm repo add kong https://charts.konghq.com
helm repo update kong
Install Kong Gateway Operator with Helm:
helm upgrade --install kgo kong/gateway-operator -n kong-system --create-namespace --set image.tag=1.4 \
--set kubernetes-configuration-crds.enabled=true \
--set env.ENABLE_CONTROLLER_KONNECT=true
You can wait for the operator to be ready using kubectl wait
:
kubectl -n kong-system wait --for=condition=Available=true --timeout=120s deployment/kgo-gateway-operator-controller-manager
Create an access token in Konnect
You may create either a Personal Access Token (PAT) or a Service Account Token (SAT) in Konnect. Please refer to the
Konnect authentication documentation for more information. You will need this token
to create a KonnectAPIAuthConfiguration
object that will be used by the Kong Gateway Operator to authenticate
with Konnect APIs.
Create a Kong Konnect API auth configuration
Depending on your preferences, you can create a KonnectAPIAuthConfiguration
object with the token specified
directly in its spec or as a reference to a Kubernetes Secret. The serverURL
field should be set to the Konnect API
URL in a region where your Kong Konnect account is located. Please refer to the list of available API URLs
for more information.
You can verify the KonnectAPIAuthConfiguration
object was reconciled successfully by checking its status.
kubectl get konnectapiauthconfiguration konnect-api-auth
The output should look like this:
NAME VALID ORGID SERVERURL
konnect-api-auth True <your-konnect-org-id> https://us.api.konghq.tech
Create a Kong Gateway control plane
Creating the KonnectGatewayControlPlane
object in your Kubernetes cluster will provision a Kong Konnect Gateway
control plane in your Gateway Manager. The KonnectGatewayControlPlane
CR
API allows you to
explicitly set a type of the Kong Gateway control plane, but if you don’t specify it, the default type is
a Self-Managed Hybrid
gateway control plane.
You can create one by applying the following YAML manifest:
echo '
kind: KonnectGatewayControlPlane
apiVersion: konnect.konghq.com/v1alpha1
metadata:
name: gateway-control-plane
namespace: default
spec:
name: gateway-control-plane # Name used to identify the Gateway Control Plane in Konnect
konnect:
authRef:
name: konnect-api-auth # Reference to the KonnectAPIAuthConfiguration object
' | kubectl apply -f -
You can see the status of the Gateway Control Plane by running:
kubectl get konnectgatewaycontrolplanes.konnect.konghq.com gateway-control-plane
If the Gateway Control Plane is successfully created, you should see the following output:
NAME PROGRAMMED ID ORGID
gateway-control-plane True <konnect-control-plane-id> <your-konnect-ord-id>
Having that in place, you will be able to reference the gateway-control-plane
in your Kong Konnect entities as their parent.
Create a data plane client certificate
Creating the KongDataPlaneClientCertificate
object in your Kubernetes cluster will provision a data plane client certificate in
your Gateway Manager. You can refer to the CR API to see all the available fields.
Your KongDataPlaneClientCertificate
must be associated with a KonnectGatewayControlPlane
object that you’ve created in your cluster.
It will make it part of the gateway control plane’s configuration.
To create a KongDataPlaneClientCertificate
, you can apply the following YAML manifest:
echo '
kind: KongDataPlaneClientCertificate
apiVersion: configuration.konghq.com/v1alpha1
metadata:
name: dp-cert
namespace: default
spec:
controlPlaneRef:
type: konnectNamespacedRef # This indicates that an in cluster reference is used
konnectNamespacedRef:
name: gateway-control-plane # Reference to the KonnectGatewayControlPlane object
cert: | # Sample certificate in PEM format, replace with your own
-----BEGIN CERTIFICATE-----
MIIB4TCCAYugAwIBAgIUAenxUyPjkSLCe2BQXoBMBacqgLowDQYJKoZIhvcNAQEL
BQAwRTELMAkGA1UEBhMCQVUxEzARBgNVBAgMClNvbWUtU3RhdGUxITAfBgNVBAoM
GEludGVybmV0IFdpZGdpdHMgUHR5IEx0ZDAeFw0yNDEwMjgyMDA3NDlaFw0zNDEw
MjYyMDA3NDlaMEUxCzAJBgNVBAYTAkFVMRMwEQYDVQQIDApTb21lLVN0YXRlMSEw
HwYDVQQKDBhJbnRlcm5ldCBXaWRnaXRzIFB0eSBMdGQwXDANBgkqhkiG9w0BAQEF
AANLADBIAkEAyzipjrbAaLO/yPg7lL1dLWzhqNdc3S4YNR7f1RG9whWhbsPE2z42
e6WGFf9hggP6xjG4qbU8jFVczpd1UPwGbQIDAQABo1MwUTAdBgNVHQ4EFgQUkPPB
ghj+iHOHAKJlC1gLbKT/ZHQwHwYDVR0jBBgwFoAUkPPBghj+iHOHAKJlC1gLbKT/
ZHQwDwYDVR0TAQH/BAUwAwEB/zANBgkqhkiG9w0BAQsFAANBALfy49GvA2ld+u+G
Koxa8kCt7uywoqu0hfbBfUT4HqmXPvsuhz8RinE5ltxId108vtDNlD/+bKl+N5Ub
qKjBs0k=
-----END CERTIFICATE-----
' | kubectl apply -f -
You can verify the KongDataPlaneClientCertificate
was reconciled successfully by checking its Programmed
condition.
kubectl get kongdataplaneclientcertificate dp-cert -o=jsonpath='{.status.conditions[?(@.type=="Programmed")]}' | jq
The output should look similar to this:
{
"observedGeneration": 1,
"reason": "Programmed",
"status": "True",
"type": "Programmed"
}
At this point, you should see the Data Plane Client Certificate in the Gateway Manager UI.