README_configurable-rules.md

Drools CloudEvents configurable-rules Operator

This configurable-rules version of Drools CloudEvents Operator. You can change the rules under config-rules directory and restart the container to apply the new rules.

Steps (with running java)

1. [Term 1] minikube start --mount --mount-string="$(pwd)/config-rules:/mnt/data"
2. [Term 1] minikube addons enable ingress
3. [Term 1] kubectl apply -f ./config/exposedapps.halkyon.io-v1.crd.yml
4. [Term 1] kubectl apply -f ./config/config-rules-pv-pvc.yml
5. [Term 2] mvn clean package
6. [Term 2] java -jar target/quarkus-app/quarkus-run.jar
7. [Term 1] kubectl apply -f ./config/drools-cloudevents-configurable-rules.yml
8. Wait until [Term 2] prints App drools-cloudevents-configurable-rules is exposed and ready to be used at https://192.168.x.x It may take around 15 seconds.
9. [Term 1]

   curl -k https://192.168.x.x/drools/evaluate \
   -H "Ce-Specversion: 1.0" \
   -H "Ce-Type: fact.Measurement" \
   -H "Ce-Source: io.cloudevents.examples/user" \
   -H "Ce-Id: 536808d3-88be-4077-9d7a-a3f162705f78" \
   -H "Content-Type: application/json" \
   -H "Ce-Subject: SUBJ-0001" \
   -d '{"id":"color","val":"red"}'
   

   Note that you need to replace the IP address with the one in the previous step. Also use -k option to ignore the self-signed certificate.
10. You should get a response which comes from the configured rules:

{"configured rule by operator result":"red!!"}

Steps (with container image)

1. minikube start --mount --mount-string="$(pwd)/config-rules:/mnt/data"
2. minikube addons enable ingress
3. kubectl apply -f drools-cloudevents-configurable-rules-operator-deployment.yaml
4. Wait until drools-cloudevents-configurable-rules-operator is Running (kubectl get pods -w).
5. kubectl apply -f ./config/config-rules-pv-pvc.yml
6. kubectl apply -f ./config/drools-cloudevents-configurable-rules.yml
7. kubectl logs <drools-cloudevents-configurable-rules-operator pod name> -f
8. Wait until the log prints App drools-cloudevents-configurable-rules is exposed and ready to be used at https://192.168.x.x It may take around 30 seconds.

9. curl -k https://192.168.x.x/drools/evaluate \
   -H "Ce-Specversion: 1.0" \
   -H "Ce-Type: fact.Measurement" \
   -H "Ce-Source: io.cloudevents.examples/user" \
   -H "Ce-Id: 536808d3-88be-4077-9d7a-a3f162705f78" \
   -H "Content-Type: application/json" \
   -H "Ce-Subject: SUBJ-0001" \
   -d '{"id":"color","val":"red"}'
   

   Note that you need to replace the IP address with the one in the previous step. Also use -k option to ignore the self-signed certificate.
10. You should get a response which comes from the configured rules:

{"configured rule by operator result":"red!!"}

11. You can scale the pod by kubectl scale deployment drools-cloudevents-configurable-rules --replicas=3

Tips for minikube + podman

1. Make user can run podman without sudo: sudo visudo
2. minikube start --driver=podman --container-runtime=cri-o --mount --mount-string="$(pwd)/config-rules:/mnt/data" ; minikube addons enable ingress
3. eval $(minikube -p minikube podman-env) ... same as docker