Kong Labs - Kubernetes - Notes

Some notes for my experience with the amazing classes with Kong Labs - Kubernetes

Install kong for K8S (dbless)

kubectl apply -f https://bit.ly/kong-ingress-dbless
kubectl wait --for=condition=available --timeout=120s --namespace=kong deployment/ingress-kong
export PROXY_IP=$(kubectl get -o jsonpath="{.spec.clusterIP}" service -n kong kong-proxy)

Sample apps (K8S applies)

The echo server:

kubectl apply -f https://bit.ly/sample-echo-service

The httpbin server:

kubectl apply -f https://bit.ly/sample-httpbin-service

Useful curl commands:

-i: for showing the reponse headers [method:GET]

curl -i $PROXY_IP/foo

-H: to set a specific hostname [method:GET]

curl -i -H "Host: example.com" $PROXY_IP/bar/sample

-X: to set verb [method:POST]

curl -s  $PROXY_IP/foo -X POST

-k: to skip certificate validation

curl -k Location URL

Useful kubectl commands

Updating a service including a plugin:

kubectl patch svc echo -p '{"metadata":{"annotations":{"konghq.com/plugins": "rl-by-ip\n"}}}'

Creating secret for kong-consumer:

kubectl create secret generic harry-apikey  \
  --from-literal=kongCredType=key-auth  \
  --from-literal=key=my-sooper-secret-key

Scale the deployment:

kubectl scale --replicas 3 -n kong deployment ingress-kong

Install Redis in K8S

kubectl apply -n kong -f https://bit.ly/k8s-redis

Script - Kong - Labs

The file script-kong-labs.sh has all the commands that I did in the course and could be used to continue from some previous step.