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Install on Kubernetes

This page explains how to install Kong Gateway with Kong Ingress Controller in DB-less mode. To install with a database, see the documentation on installing with Helm.

This page also includes the equivalent commands for OpenShift.

In DB-less mode on Kubernetes, the config is stored in etcd, the Kubernetes native data store. For more information, see Kubernetes Deployment Options.

The Kong Gateway software is governed by the Kong Software License Agreement. Kong Gateway (OSS) is licensed under an Apache 2.0 license.

Prerequisites

A Kubernetes cluster v1.19 or later
kubectl v1.19 or later
(Enterprise only) A license.json file from Kong

Create namespace

Create the namespace for Kong Gateway with Kong Ingress Controller. For example:

## on Kubernetes native
kubectl create namespace kong

## on OpenShift
oc new-project kong

Create license secret

Save your license file temporarily with the filename license (no file extension).

Run:

## on Kubernetes native
kubectl create secret generic kong-enterprise-license --from-file=<absolute-path-to>/license -n kong

## on OpenShift
oc create secret generic kong-enterprise-license --from-file=./license -n kong

Deploy

Run one of the following:

## Kong Gateway on Kubernetes native
kubectl apply -f https://raw.githubusercontent.com/Kong/kubernetes-ingress-controller/v3.0.0/deploy/single/all-in-one-dbless-k4k8s-enterprise.yaml

## Kong Gateway on OpenShift
oc create -f https://raw.githubusercontent.com/Kong/kubernetes-ingress-controller/v3.0.0/deploy/single/all-in-one-dbless-k4k8s-enterprise.yaml

## Kong Gateway (OSS) on Kubernetes native
kubectl apply -f https://raw.githubusercontent.com/Kong/kubernetes-ingress-controller/v3.0.0/deploy/single/all-in-one-dbless.yaml

This might take a few minutes.

Check the install status:

kubectl get pods -n kong

or:

oc get pods -n kong

To make HTTP requests, you need the IP address of the load balancer. Get the loadBalancer address and store it in a local PROXY_IP environment variable:

Note: Some cluster providers only provide a DNS name for load balancers. In this case, specify .hostname instead of .ip.
```
export PROXY_IP=$(kubectl get -o jsonpath="{.status.loadBalancer.ingress[0].ip}" service -n kong kong-proxy)
```
Verify that the value of $PROXY_IP matches the value of the external host:
```
echo $PROXY_IP
```
This should match the EXTERNAL_IP value of the kong-proxy service returned by the Kubernetes API:
```
kubectl get service kong-proxy -n kong
```
or:
```
oc get service kong-proxy -n kong
```
Invoke a test request:
```
 curl $PROXY_IP
```
This should return the following response from Gateway:
```
 {"message":"no Route matched with those values"}
```

Next steps

See the Kong Ingress Controller docs for how-to guides, reference guides, and more.