Configure Diun to watch a few container images, including one pinned to a digest and one that updates frequently. Push a test image update and check whether the notification identifies the image, tag, and change clearly enough for an operator to decide what to do.
An update alert is not an instruction to deploy blindly. Define how the team checks release notes, scans the image, tests compatibility, and schedules rollout. Suppress noisy notifications so real security or maintenance work is not ignored.