reactive-sample

Vertx and spring5 webflux (annotations and functional based approaches).

• Gatling load tests.

Applications are pretty simple:

1. get json input
2. convert to model
3. convert back to json
4. return

Notes

• mvn clean package - to create fat jars
• all applications are run on 8080 port
• Gatling test can be run from IDE(mvn package first) or via gatling.sh

Cluster

1. Install minikube(need to link kubectl and docker with docker env). Start on windows 10: minikube --vm-driver hyperv --hyperv-virtual-switch primary_virtual_switch start
2. Create docker image for vertx cluster project
3. kubectl run vertx-cluster --image=vertx-cluster --port=7070 --image-pull-policy=IfNotPresent - create docker deployment
4. kubectl expose deployment vertx-cluster --type="LoadBalancer" - expose docker service
5. minikube service vertx-cluster --url - to get service url
6. kubectl set image deployment/vertx-cluster vertx-cluster=vertx-cluster:v3 - update image
7. open dashboard and scale

Redis expiration keys handling with vertx-cluster

1. run vertx-cluster in minikube
2. run redis with enabled Ex (https://redis.io/topics/notifications) in minikube
3. update Dockerfile for events-dispatcher with redis host and port(-Dhost, -Dport)
4. run events-dispatcher in minikube
5. add records with expirations to redis & monitor logs