Chapter 15. Deploying custom code to Data Grid

Procedure

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

   $ oc project rhdg-namespace

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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

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3. Apply your PVC.

   $ oc apply -f datagrid-libs.yaml

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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-rhel8:8.2
         volumeMounts:
           - mountPath: /tmp/libs
             name: lib-pv-storage

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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

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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/

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7. Delete the pod.

   $ oc delete pod datagrid-libs-pod

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   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: example-infinispan
   spec:
     replicas: 2
     dependencies:
       volumeClaimName: datagrid-libs
     service:
       type: DataGrid

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Procedure

1. Add the spec.dependencies.artifacts field to your Infinispan CR.

   1. Specify the location of the file to download via HTTP or FTP as the value of the spec.dependencies.artifacts.url field.

   2. Optionally specify a checksum to verify the integrity of the download with the spec.dependencies.artifacts.hash field.

      The hash field requires a value is in the format of <algorithm>:<checksum> where <algorithm> is sha1|sha224|sha256|sha384|sha512|md5.

   3. Set the file type, if necessary, with the spec.dependencies.artifacts.type field.

      You should explicitly set the file type if it is not included in the URL or if the file type is actually different to the extension in the URL.

      Note

      If you set type: file, Data Grid Operator downloads the file as-is without extracting it to the filesystem.

      apiVersion: infinispan.org/v1
      kind: Infinispan
      metadata:
        name: example-infinispan
      spec:
        replicas: 2
        dependencies:
          artifacts:
            - url: http://example.com:8080/path
              hash: sha256:596408848b56b5a23096baa110cd8b633c9a9aef2edd6b38943ade5b4edcd686
              type: zip
        service:
          type: DataGrid

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2. Apply the changes.