Local Controller Cluster with docker-compose

For production, the light controller should be deployed in cluster mode with at least three instances. As it depending on the light-scheduler, we also need to deploy three instances of light-scheduler. To complete the function, we will use the pet store service to register to the controller.

Start Confluent

cd ~/networknt/kafka-sidecar
docker-compose up

Start Scheduler

cd ~/networknt/light-scheduler
docker-compose up

Start Controller

cd ~/networknt/light-controller
docker-compose up

Start Petstore

cd ~/networknt/light-example-4j/rest/petstore-maven-single
mvn clean install -Prelease
java -jar target/server.jar

Test

Access the scheduler API to see there should be one task definition. Also you can see the health check task is created every 10 seconds.

curl -k https://localhost:8401/schedulers
curl -k https://localhost:8402/schedulers
curl -k https://localhost:8403/schedulers

Access the controller API to see there should be one registered service.

curl -k https://localhost:8438/services
curl -k https://localhost:8439/services
curl -k https://localhost:8440/services

To access the lookup endpoint for a particular service on each node.

curl -k 'https://localhost:8438/services/lookup?serviceId=com.networknt.petstore-3.0.1&tag=dev'
curl -k 'https://localhost:8439/services/lookup?serviceId=com.networknt.petstore-3.0.1&tag=dev'
curl -k 'https://localhost:8440/services/lookup?serviceId=com.networknt.petstore-3.0.1&tag=dev'

To access all the health checks.

curl -k https://localhost:8438/services/check
curl -k https://localhost:8439/services/check
curl -k https://localhost:8440/services/check

To get heath check for a particular check id.

curl -k 'https://localhost:8438/services/check/com.networknt.petstore-3.0.1%7Cdev:https:172.17.0.1:8443'
curl -k 'https://localhost:8439/services/check/com.networknt.petstore-3.0.1%7Cdev:https:172.17.0.1:8443'
curl -k 'https://localhost:8440/services/check/com.networknt.petstore-3.0.1%7Cdev:https:172.17.0.1:8443'

Video