cba96a86c5
Automatic merge from submit-queue (batch tested with PRs 41297, 42638, 42666, 43039, 42567) Add the ability to lock on ConfigMaps to support HA for self hosted components **What this PR does / why we need it**: This PR add the ability to lock on ConfigMap objects. As we self-host more and more components, ConfigMaps provides a useful resource to lock on that applies to just the component that is being added. This allows components such as scheduler+controller manager, etc. to have a simple mechanism to allow to active-passive HA without the cost of endpoint updates. **Related Issues** xref: https://github.com/kubernetes/client-go/issues/28 **Special notes for your reviewer**: We may want to deprecate endpoints locking at some point. **Release note**: ``` Add the ability to lock on ConfigMaps to support HA for self hosted components ``` /cc @kubernetes/sig-cluster-lifecycle-pr-reviews @mikedanese
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