Chapter 3. Data Grid on OpenShift

Data Grid 8.5 includes two container images, the Data Grid Operator image and Data Grid Server image.

Data Grid images are hosted on the Red Hat Container Registry, where you can find health indexes for the images along with information about each tagged version.

Custom Data Grid Deployments

Red Hat does not support customization of any 8.5 images from the Red Hat Container Registry through the Source-to-Image (S2I) process or ConfigMap API.

As a result it is not possible to use custom:

Using embedded Data Grid caches in applications running on OpenShift, which was referred to as Library Mode in previous releases, is intended for specific uses only:

Red Hat supports only DNS_PING as the cluster discovery mechanism.

DNS_PING exposes a port named ping that Data Grid nodes use to perform discovery and join clusters. TCP is the only supported protocol for the ping port, as in the following example for a pod on OpenShift:

spec:
  ...
  ports:
    - name: ping
      port: 8888
      protocol: TCP
      targetPort: 8888

spec:
  ...
  ports:
    - name: ping
      port: 8888
      protocol: TCP
      targetPort: 8888