This quickstart demonstrates how to connect a Spring-Boot application to a JBoss Data Grid (or Infinispan) server using the Hot Rod protocol. It requires that the data grid server (or cluster) has been deployed first.
In the example, a Camel route is using the Infinispan server as idempotent repository, filtering out messages that have already been processed. Messages having a bounded random ID are created through a configurable generator. Another Camel route shows how to lookup cache entries in the Infinispan server.
Both routes use the default cache of the data grid, although this can be changed in the application.properties file.
The default name for the target data grid cluster is DATAGRID_APP_HOTROD. It can be changed from the spring-boot configuration file or
using the environment variable DATAGRID_SERVICE_NAME.
The example can be built with
mvn clean install
The example can be run locally using the following Maven goal:
mvn spring-boot:run
It is assumed a running Kubernetes platform is already running. If not you can find details how to get started.
Assuming your current shell is connected to Kubernetes or OpenShift so that you can type a command like
kubectl get pods
or for OpenShift
oc get pods
Then the following command will package your app and run it on Kubernetes:
mvn fabric8:run
To list all the running pods:
oc get pods
Then find the name of the pod that runs this quickstart, and output the logs from the running pods with:
oc logs <name of pod>
You can also use the fabric8 developer console to manage the running pods, and view logs and much more.
You can find more details about running this quickstart on the website. This also includes instructions how to change the Docker image user and registry.