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Merge pull request #21122 from wawa0210/clarify-imagepullpolicy-always 

Clarify behavior of imagePullPolicy Always
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Kubernetes Prow Robot 2020-05-23 08:43:10 -07:00 committed by GitHub
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content/en/docs/concepts/configuration/overview.md
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@ -77,7 +77,7 @@ The [imagePullPolicy](/docs/concepts/containers/images/#updating-images) and the
- `imagePullPolicy: IfNotPresent`: the image is pulled only if it is not already present locally.
- `imagePullPolicy: Always`: the image is pulled every time the pod is started.
- `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 downloads (pulls) the image with the resolved digest, and uses that image to launch the container.
- `imagePullPolicy` is omitted and either the image tag is `:latest` or it is omitted: `Always` is applied.