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Merge pull request #21807 from rvmzes/master 

Clarify imagePullPolicy for empty value
pull/21936/head
Kubernetes Prow Robot 2020-06-19 22:44:39 -07:00 committed by GitHub
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@ -61,6 +61,8 @@ you can do one of the following:
- omit the `imagePullPolicy` and the tag for the image to use.
- enable the [AlwaysPullImages](/docs/reference/access-authn-authz/admission-controllers/#alwayspullimages) admission controller.
When `imagePullPolicy` is defined without a specific value, it is also set to `Always`.
## Multi-architecture Images with Manifests
As well as providing binary images, a container registry can also server a [container image manifest](https://github.com/opencontainers/image-spec/blob/master/manifest.md). A manifest can reference image manifests for architecture-specific versions of an container. The idea is that you can have a name for an image (for example: `pause`, `example/mycontainer`, `kube-apiserver`) and allow different systems to fetch the right binary image for the machine architecture they are using.