Make metrics scrape target flexible with mountModeSelector #4350
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Ⅰ. Describe what this PR does
ScrapeTargetformerly supported 4 supported values(related PR: #4331 ): None, All, MountPodOnly, SidecarOnly. It will be hard to extend the behavior when there comes a third mount mode.This PR makes the following changes to make
ScrapeTargetmore flexible to configure when a third mount mode comes in:ScrapeTargeta list separated with comma. Each item in the list defines a specific mount mode. Currently, only two mount mode are supported: MountPod and Sidecar.NoneandAllmeaning no / all mount modes is/are selected, respectively.Ⅱ. Does this pull request fix one issue?
None
Ⅲ. List the added test cases (unit test/integration test) if any, please explain if no tests are needed.
Ⅳ. Describe how to verify it
Ⅴ. Special notes for reviews