Package software.amazon.awscdk.services.batch

Enum ImagePullPolicy

java.lang.Object

java.lang.Enum<ImagePullPolicy>

software.amazon.awscdk.services.batch.ImagePullPolicy

All Implemented Interfaces:

Serializable, Comparable<ImagePullPolicy>, java.lang.constant.Constable

@Generated(value="jsii-pacmak/1.104.0 (build e79254c)",
           date="2024-11-22T02:23:57.737Z")
@Stability(Stable)
public enum ImagePullPolicy
extends Enum<ImagePullPolicy>

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

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
ALWAYS	Every time the kubelet launches a container, the kubelet queries the container image registry to resolve the name to an image digest.
IF_NOT_PRESENT	The image is pulled only if it is not already present locally.
NEVER	The kubelet does not try fetching the image.

Method Summary

Modifier and Type	Method	Description
static ImagePullPolicy	valueOf(String name)	Returns the enum constant of this type with the specified name.
static ImagePullPolicy[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

ALWAYS

@Stability(Stable)
public static final ImagePullPolicy 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 Also:

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

IF_NOT_PRESENT

@Stability(Stable)
public static final ImagePullPolicy IF_NOT_PRESENT

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

NEVER

@Stability(Stable)
public static final ImagePullPolicy 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 Also:

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

Method Details

values

public static ImagePullPolicy[] values()

Returns an array containing the constants of this enum type, in the order they are declared.

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static ImagePullPolicy valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null