Required Docker images

Identify the Docker images required by the Splunk Operator.

The Splunk Operator requires specific Docker images to be present or available to your Kubernetes cluster. The following Docker images are required:

• splunk/splunk-operator:<version>: The Splunk Operator image.
• splunk/splunk:<version>: The Splunk Enterprise image.

All of these images are publicly available and published on Docker Hub. Starting with release 2.8.0, the base image for the released image is registry.access.redhat.com/ubi8/ubi-minimal, which minimizes security risks and reduces unneeded packages in the image. A released image based on the distroless base image is also available under the -distroless suffix tag on Docker Hub.

If your cluster does not have access to pull directly from Docker Hub, you must manually download and push these images to an accessible registry. You must also specify the location of these images by using an environment variable passed to the Operator, or by adding additional spec parameters to your custom resource definition.

Use the RELATED_IMAGE_SPLUNK_ENTERPRISE environment variable or the image custom resource parameter to change the location of your Splunk Enterprise image.

For more information, see the Custom Resource reference.