第20章 Deploying custom code to Data Grid

Procedure

1. Change to the namespace for your Data Grid cluster.

   oc project rhdg-namespace

2. Create a PVC for your custom code artifacts, for example:

   apiVersion: v1
   kind: PersistentVolumeClaim
   metadata:
     name: datagrid-libs
   spec:
     accessModes:
       - ReadWriteMany
     resources:
       requests:
         storage: 100Mi

3. Apply your PVC.

   oc apply -f datagrid-libs.yaml

4. Create a pod that mounts the PVC, for example:

   apiVersion: v1
   kind: Pod
   metadata:
     name: datagrid-libs-pod
   spec:
     securityContext:
       fsGroup: 2000
     volumes:
       - name: lib-pv-storage
         persistentVolumeClaim:
           claimName: datagrid-libs
     containers:
       - name: lib-pv-container
         image: registry.redhat.io/datagrid/datagrid-8-rhel9:8.6
         volumeMounts:
           - mountPath: /tmp/libs
             name: lib-pv-storage

5. Add the pod to the Data Grid namespace and wait for it to be ready.

   oc apply -f datagrid-libs-pod.yaml
   oc wait --for=condition=ready --timeout=2m pod/datagrid-libs-pod

6. Copy your code artifacts to the pod so that they are loaded into the PVC.

   For example to copy code artifacts from a local libs directory, do the following:

   oc cp --no-preserve=true libs datagrid-libs-pod:/tmp/

7. Delete the pod.

   oc delete pod datagrid-libs-pod

   Specify the persistent volume with spec.dependencies.volumeClaimName in your Infinispan CR and then apply the changes.

   apiVersion: infinispan.org/v1
   kind: Infinispan
   metadata:
     name: infinispan
   spec:
     replicas: 2
     dependencies:
       volumeClaimName: datagrid-libs
     service:
       type: DataGrid