Add dynamic resource allocation design details. #3487
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Signed-off-by: Subhasish Behera <[email protected]>
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| For the delayed allocation mode,PodSchedulingcontext is used. In this allocation mode a node is selected tentatively by the scheduler in an iterative process where the scheduler suggests some potential nodes that fit the other resource requirements of a Pod and resource drivers respond with PodSchedulingcontext information about whether they can allocate claims for those nodes. | ||
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| In the `OnSessionOpen` function of the plugin the logic related to publish is written. The `publish` will be used in updating existing podSchedulingContext's state with any changes in the scheduling state. If there's no existing PodSchedulingContext, it creates a new one. |
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Besides the publish func of dra, we should also add prefilter, filter, scroe, reserved callback here and add postbind logic in after task bind successfully, please also add these details: )
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And draw a picture to show the whole process is better.
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@Monokaix sent a message regarding the callback part:)
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@Monokaix I have some doubts regarding the prebind step which I have messaged on slack.
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This PR may need to close, this PR will follow up to finish introducing DRA: #3799 |
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