Must keep running for the life of the pod. Base images (ubuntu, nvidia/cuda, pytorch/pytorch) need sleep infinity; leave it empty only when the image's own command is a long-running server.
Only for an image in a private registry.
Pins the exact image you tested.
Replaces the image's ENTRYPOINT. Most templates leave it empty.
Where the pod's persistent disk is mounted. Keep /root unless you know you need another path.
Image runs nested containers (CI runners, sandboxed evaluation, KinD).