277d866111
Automatic merge from submit-queue (batch tested with PRs 55812, 55752, 55447, 55848, 50984). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>. Initial basic bootstrap-checkpoint support **What this PR does / why we need it**: Adds initial support for Pod checkpointing to allow for controlled recovery of the control plane during self host failure conditions. fixes #49236 xref https://github.com/kubernetes/features/issues/378 **Special notes for your reviewer**: Proposal is here: https://docs.google.com/document/d/1hhrCa_nv0Sg4O_zJYOnelE8a5ClieyewEsQM6c7-5-o/edit?ts=5988fba8# 1. Controlled tests work, but I have not tested the self hosted api-server recovery, that requires validation and logs. /cc @luxas 2. In adding hooks for checkpoint manager much of the tests around basicpodmanager appears to be stub'd. This has become an anti-pattern in the code and should be avoided. 3. I need a node-e2e to ensure consistency of behavior. **Release note**: ``` Add basic bootstrap checkpointing support to the kubelet for control plane recovery ``` /cc @kubernetes/sig-cluster-lifecycle-misc @kubernetes/sig-node-pr-reviews
Kubernetes
Kubernetes is an open source system for managing containerized applications across multiple hosts, providing basic mechanisms for deployment, maintenance, and scaling of applications.
Kubernetes builds upon a decade and a half of experience at Google running production workloads at scale using a system called Borg, combined with best-of-breed ideas and practices from the community.
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