Each container in a Pod has a container image. Once you have created an image and pushed it to a registry, you can then refer to it in the Pod.
When OKD creates containers, it uses the container’s
imagePullPolicy to determine if the image should be pulled prior to starting
the container. There are three possible values for
Always pull the image.
Only pull the image if it does not already exist on the node.
Never pull the image.
If a container’s
imagePullPolicy parameter is not specified, OKD
sets it based on the image’s tag:
If the tag is
latest, OKD defaults
Otherwise, OKD defaults