Kong ingress controller proxy-cache plugin always returns X-Cache-Status: Bypass

Kubernetes
1

I am trying to use proxy-cache plugin with kong ingress controller.

I have installed kong ingress controller using:
kubectl apply -f https://bit.ly/kong-ingress-dbless

as stated int the docs. I’m using my minikube (minikube version: v1.0.1)

I have installed the plugin like this:

	echo "
	apiVersion: configuration.konghq.com/v1
	config:
      request_method: GET
      cache_ttl: 300
      cache_control: false
      strategy: memory
      content_type: text/plain; charset=UTF-8
	kind: KongPlugin
	metadata:
	  name: proxy-cache
	  namespace: default
	plugin: proxy-cache
	" | kubectl apply -f -

I have created a sample deployment:

kubectl apply -f https://bit.ly/echo-service
service/echo created
deployment.apps/echo created

and setup an ingress with proper annotation:

echo "
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  annotations:
    plugins.konghq.com: proxy-cache
  name: demo
spec:
  rules:
  - http:
      paths:
      - path: /foo
        backend:
          serviceName: httpbin
          servicePort: 80
      - path: /bar
        backend:
          serviceName: echo
          servicePort: 80
" | kubectl apply -f -

When I call I always get X-Cache-Status: Bypass

curl -i $PROXY_IP/foo
…
HTTP/1.1 200 OK
Content-Type: text/plain; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
X-Cache-Key: b233ea72899e5d984d2d01d92874cb0d
X-Cache-Status: Bypass
Date: Thu, 20 Feb 2020 16:41:51 GMT
Server: echoserver
X-Kong-Upstream-Latency: 1
X-Kong-Proxy-Latency: 0
Via: kong/1.4.3
…

Any help appreciated

2

Do you have multiple nodes of Kong running?
@bungle Any idea why this happens? content-type header seems to match up.

3

Thanks @hbagdi
no I’m using the deployment with replica 1

Please let me know if I’m missing something