ImagePullPolicy

class aws_cdk.aws_batch.ImagePullPolicy(value, names=None, *, module=None, qualname=None, type=None, start=1, boundary=None)

Bases: Enum

Determines when the image is pulled from the registry to launch a container.

Attributes

ALWAYS

Every time the kubelet launches a container, the kubelet queries the container image registry to resolve the name to an image digest.

If the kubelet has a container image with that exact digest cached locally, the kubelet uses its cached image; otherwise, the kubelet pulls the image with the resolved digest, and uses that image to launch the container.

See:: https://docs.docker.com/engine/reference/commandline/pull/#pull-an-image-by-digest-immutable-identifier

IF_NOT_PRESENT: The image is pulled only if it is not already present locally.

NEVER

The kubelet does not try fetching the image.

If the image is somehow already present locally, the kubelet attempts to start the container; otherwise, startup fails. See pre-pulled images for more details.

See:: https://kubernetes.io/docs/concepts/containers/images/#pre-pulled-images